The Math Thread

[ahhdurr]

So I've been taking a college algebra course because I'm trying to move on in life and do something worthwhile. I'd like to go eventually get an engineering degree of some sort. I recently found out thought that it requires up to Calc II.

So now I'm interested to find out what level of mathematics you've acheived. Do you basically just know how not to get screwed at the register? Or are you a fan of spending nights trying to figure out cutting edge topographical conundrums? (CONUNDRUM!) Has anyone - like me - never even seen the inside of a pre-calc book?

I'd also like to use this thread to just discuss math. If anyone has a math problem they'd like to share or question or point ... post away!

[SatCam]

pre-calc 11th grade got an A

[Knowledged_one]

I have a bs in both mechanical and aerospace engineering and had to go througg differential equations.
what kind of engineering are you hoping to do

[Contra]

I hate math so I just say boo to this thread... Booooooo!

[furie]

I took Calculus in college because i aced pre-cal in high schooland figured I'd be great at it. I got a C in Cal I and withdrew from Cal II.

good luck!

[Sinestro]

Cal I and II, Fortran, Physics, Drafting and Chemistry back in the day when I was going for engineering.

[furie]

Fortran 77. i forgot about that.
ugh, just thinking back to that semester makes me shiver

[sailor]

calc in hs and 3 (or 4?) years of business math, which was the advanced version of the math the rest of my college took. was close to a minor in economics (no not technically math) until they told me i couldn't get that because it was a different school (but i could "tell people you took a lot of economics classes").

[torker]

I'm making a Skittles graph tomorrow.
http://ksnn.larc.nasa.gov/images/graph_e.gif

[ElBoberino]

Its been waaaay too long since I've had to do any complicated math....I guess that's why I worked in video production for so long, simple math.

Although, living with engineers all through college I discovered that if you type in your math problem into google, it will solve it for you. It even did some of their huge problems that took 2 pages to write out.

[Sinestro]

Although, living with engineers all through college I discovered that if you type in your math problem into google, it will solve it for you. It even did some of their huge problems that took 2 pages to write out.

Fuck! Where was the internet when I went to college.

[BeerBandit]

They call me the calculus kid...as in through calc III and differential equations.

I'm an engineer...

or at least schooled as on.

[zildjian361]

in Brooklyn Tech i graduated in1970 i took algebra geometry and trigonometry it didn't help much as i was a architecture major.:lol: but id know what 12x 12 eqals gross :wink:

[ahhdurr]

I have a bs in both mechanical and aerospace engineering and had to go througg differential equations.
what kind of engineering are you hoping to do

Probably a general mechanical degree (which seems to be grouped as mech/aerospace)

I currently operate cogen and think that I'd be able parlay my hands on experience into something related. I'd love to be involved with plant design in some capacity - I'd really like to contribute to the up coming innovations in production we'll need in the future in terms of envrionmental and political considerations.

I'm no rube with this though - I'm pretty sure I'll end up checking data or getting someone coffee even with a degree. idk.

I'm really finding math to be an awesome subject though - and especially in its application to engineering - massive potentially catastrophic processes and equipment adhering to law and being put to work.

Speaking of which- love that show - destroyed in seconds.

[Patient zer0]

fuck math, pretend your gay and blow your teacher. calcII achieved!

[Thebazile78]

Calculus, non-AP. Senior year of hig school, got a B or B+, kept my notes. The one thing I learned about higher maths through that course was to get really solid on my definitions. If you had the definitions solidly in place in your head, and you practiced your sample set problems, proofs and exams became cakewalks. It was great.

Then I took Calc in college to satisfy my maths requirement, scored a C, but that's actually pretty good considering I rarely showed up to the lectures, left the recitations after turning in the homework and taking the quizzes and slept through half the semester ... and this is on top of both the professor and the recitation leader being from Eastern Europe and Brazil, respectively.

I went back to take Calc again to see if I could score a "B" or better (was going to apply to an MBA program that required a "B" or better in Calc and Stats) ... and, because I didn't apply myself, I again scored a "C." (That was an expensive "C" but a valuable lesson!!!)

Depending on my next career goal, I may be done with advanced maths ... or I may just want to take a refresher course to get my brain thinking in logical terms again.

I've also taken Logic, which counted as a Math, but was offered by the Philosophy department. It comes in really handy when I'm writing scripts, although I rarely do that anymore.

[Knowledged_one]

Probably a general mechanical degree (which seems to be grouped as mech/aerospace)

I currently operate cogen and think that I'd be able parlay my hands on experience into something related. I'd love to be involved with plant design in some capacity - I'd really like to contribute to the up coming innovations in production we'll need in the future in terms of envrionmental and political considerations.

I'm no rube with this though - I'm pretty sure I'll end up checking data or getting someone coffee even with a degree. idk.

I'm really finding math to be an awesome subject though - and especially in its application to engineering - massive potentially catastrophic processes and equipment adhering to law and being put to work.

Speaking of which- love that show - destroyed in seconds.

Math is great, i used to love it when i would get things figured out.

I took Calc 1 in high school and then for the easy grade i took it again in college. Calc II was a little tougher but not to bad. I did horrible in Calc III and actually had to take it again but that was mostly because it was having to memorize obscure formulas. And everyone said how hard DiffEq was but i thought that class was relatively easy.

Most of what you learn in Calc I is all you will use for the most part in Engineering classes. Knowing derivatives and Integrals is basically it. You mostly need it for the background so you can understand the math behind what they teach in a lot of classes.

It also depends on the engineering what school you go to. Delaware was mechanical lending towards DuPont work, while WVU was towards the Auto Industry, i didnt want either so thats why i took the dual program at WVU and never looked back.

And to be honest you wont use pretty much any of the math that you learn in college when you get a job in the industry because most of the stuff is pre-programmed into Excel or some other program.

This is what i will tell you pay attention in any computer programming class and learn Excel those are the biggest tools with Excel at the top.

My first job i was a Flight Test Engineer and was butt scared the first day because like most people i cheated in college (like in Math, programming formulas into your calculator) and thought i would be a fraud. But its not bad you wont be fetching coffee, they know you have a degree and would treat you that way

[JPMNICK]

I took Calc I-III, and Differential Equations. Also took Statistics and Applied Numerical Methods

I thought Calc II was the hardest

Also, any serious engineering program you are going to have to take up to Calc III, if not more. there are not to many I know of where you can stop at Calc II

[ahhdurr]

Math is great, i used to love it when i would get things figured out.

I took Calc 1 in high school and then for the easy grade i took it again in college. Calc II was a little tougher but not to bad. I did horrible in Calc III and actually had to take it again but that was mostly because it was having to memorize obscure formulas. And everyone said how hard DiffEq was but i thought that class was relatively easy.

Most of what you learn in Calc I is all you will use for the most part in Engineering classes. Knowing derivatives and Integrals is basically it. You mostly need it for the background so you can understand the math behind what they teach in a lot of classes.

It also depends on the engineering what school you go to. Delaware was mechanical lending towards DuPont work, while WVU was towards the Auto Industry, i didnt want either so thats why i took the dual program at WVU and never looked back.

And to be honest you wont use pretty much any of the math that you learn in college when you get a job in the industry because most of the stuff is pre-programmed into Excel or some other program.

This is what i will tell you pay attention in any computer programming class and learn Excel those are the biggest tools with Excel at the top.

My first job i was a Flight Test Engineer and was butt scared the first day because like most people i cheated in college (like in Math, programming formulas into your calculator) and thought i would be a fraud. But its not bad you wont be fetching coffee, they know you have a degree and would treat you that way

My brother was a Civil Engineer for 10 years - he told me much the same about not really having to do much in the way of math b/c someone had basically already figured all that out. I likened it to web building. You don't need to know HTML to build a site with Dreamweaver - of course it helps sometimes and I'd always rather someone with solid HTML skills if I were hiring the person.

I'm going to look up a "differential equation" I couldn't pick one out of a lineup.

[Knowledged_one]

I took Calc I-III, and Differential Equations. Also took Statistics and Applied Numerical Methods

I thought Calc II was the hardest

Also, any serious engineering program you are going to have to take up to Calc III, if not more. there are not to many I know of where you can stop at Calc II

Civil Engineers but then again they arent real engineers

[mendyweiss]

Using Four 4's and any math symbols or operations, can you create an answer of 59 ?

[Knowledged_one]

Using Four 4's and any math symbols or operations, can you create an answer of 59 ?

I remember this one

(4! - (sqrt 4))/.4 + 4

[mendyweiss]

I remember this one

(4! - (sqrt 4))/.4 + 4

Good Job, More Tomorrow !!

[boonanas]

I am a mathematics major. I've taken the following math classes

Calcs I - III
Linear Algebra
Probability (the hardest class out of all math classes)
Statistics
Advanced Calculus 1
University Physics (Calculus based Physics)
Statistical Inference
Foundations of Modern Algebra

[nate1000]

Finance guy:
Stats;
Linear Algebra; and
Calc I & II were as far as I took it.


All A's, btw.

[paracetamol flanders]

I prefer smoking over shooting because I hate needles. I also take calcium suppliments so my teeth don't get all wack.

Oh, MATH.

Well, after chisembop I took me lots of geometry, differential and integral calculus, physics, chemistry, organic chemistry, Fortran and Cobol. And that's why I am a writer and a DJ. The area under a tone-arm, as the crunk appraoches infinity, should always be playah times 10 to the fifth minus tha game.

[ahhdurr]

Good Job, More Tomorrow !!

ooooooh... yeah. I like that. Let's do more.

:clap:

[ahhdurr]

Civil Engineers but then again they arent real engineers

now - srsly - I thought it was the mechanical engineers that were the bastard children or "drummers" of the engineering world.

do tell.

[Thebazile78]

now - srsly - I thought it was the mechanical engineers that were the bastard children or "drummers" of the engineering world.

do tell.

Nope, it's Civil Engineers who are the redheaded stepchildren of the engineering hierarchy.

Having lived with Computer and Mech/Aerospace Engineers during my freshman year of college, it's totally the Civil Engineers.

Basically, a Civil Engineer is a glorified Civic Planner. While a Mech/Aero engineer has a real function.

You want mockery, however, try Ceramic Engineering. It's more than just toilets and tile!

[ahhdurr]

Nope, it's Civil Engineers who are the redheaded stepchildren of the engineering hierarchy.

Having lived with Computer and Mech/Aerospace Engineers during my freshman year of college, it's totally the Civil Engineers.

Basically, a Civil Engineer is a glorified Civic Planner. While a Mech/Aero engineer has a real function.

You want mockery, however, try Ceramic Engineering. It's more than just toilets and tile!

haha - no wonder my brother went back for an MBA.

I'm going to drop something like "yeah- well it's not like you were a real engineer anyway" sometime. It's dawning on me that we'll dig at eachother into old age probably.

[JPMNICK]

at my college it was a shoot out between Civil and Mechanical, but Civil always won out. you are basically an architect that can do multiplication well, or so it was said.

Chemical Engineering was the hardest

[marky2bucks]

Structural Engineer with Professional Engineer's license and Master's Degree here. I took up to differential equations, and yes I sometimes use it.

[ahhdurr]

someone want to post a differential equation that would be considered basic? Like what's the first differential equation you would run into in the world of doing differential equations... I just want to see what one looks like.

Who of the math gender opposite me will pull down their math panties?

edit: I have absolutely no idea what's wrong with me... I'll let you know.

[ahhdurr]

stupid Willmore.

[BeerBandit]

http://upload.wikimedia.org/math/0/d/2/0d2f6c56093268f295f6674dca4560d0.png

This is a Ordinary DE. It's actually Newton's Second Law.

[Arienette]

i used to be a math person in my former life. i got a BS in applied math from columbia after i decided i didn't want to be an engineer.

now, somehow, i'm a lawyer.

i used to like to do proofs and stuff for fun. seriously.

q.e.d.

[BeerBandit]

i used to be a math person in my former life. i got a BS in applied math from columbia after i decided i didn't want to be an engineer.

now, somehow, i'm a lawyer.

i used to like to do proofs and stuff for fun. seriously.

q.e.d.
Quoted For Tautology!

[midwestjeff]

I was always really good at math but never really interested in it.

Logic though, that makes me jizz.

I am (ok, was) a master of Symbolic Logic. Master, I tell you.

[Marc with a c]

x=9

[mendyweiss]

What Number Comes Next In The Following Sequence ?

4 5 14 15 40 41 ?

[ahhdurr]

What Number Comes Next In The Following Sequence ?

4 5 14 15 40 41 ?

I never understood these too well - especially when the pattern started to look like - "allright we're going to throw any increment in here"

I'm going to say 50 as my final answer.

[ahhdurr]

x=9

Correct!

[BeerBandit]

What Number Comes Next In The Following Sequence ?

4 5 14 15 40 41 ?
90?

[Thebazile78]

What Number Comes Next In The Following Sequence ?

4 5 14 15 40 41 ?

0.4

[mendyweiss]

What Number Comes Next In The Following Sequence ?

4 5 14 15 40 41 ?

The Answer Is 42
These Are The Consecutive Counting Numbers That Have The Letter "F" As The First Letter In Their Names

[JPMNICK]

The Answer Is 42
These Are The Consecutive Counting Numbers That Have The Letter "F" As The First Letter In Their Names

i have been thinking about this for days! and now it makes sense why I did not get it. it really had nothing to do with the numbers it was more of an english type problem. very good

[mendyweiss]

Twelve People Decided To Start A New Company. If There Had Been Four More Initial Investors, The Initial Expense For Each Person Would Have Been $ 2,000 Less.
What Was The Initial Cost Per Person ?

[Thebazile78]

The Answer Is 42
These Are The Consecutive Counting Numbers That Have The Letter "F" As The First Letter In Their Names

Looks like I overthought it ... again.

Good show.

[BeerBandit]

Twelve People Decided To Start A New Company. If There Had Been Four More Initial Investors, The Initial Expense For Each Person Would Have Been $ 2,000 Less.
What Was The Initial Cost Per Person ?
$8000
12(x) = y
16(z) = y
x - 2000 = z


Next!

[Thebazile78]

$8000
12(x) = y
16(z) = y
x - 2000 = z


Next!

Can you show your entire process? I tried it using your equations and I got stuck, so I want to see where I was creating a roadblock. (If it's too off-topic for the thread, PM me.)

[BeerBandit]

$8000
12(x) = y
16(z) = y
x - 2000 = z


Next!
Substitute:
16(x-2000) = y = 12(x)
16x - 32000 = 12x
4x = 32000
x = 8000

[Thebazile78]

Substitute:
16(x-2000) = y = 12(x)
16x - 32000 = 12x
4x = 32000
x = 8000

I see what I did now. I didn't balance the equation on both sides!

Thanks so much!

[BeerBandit]

I see what I did now. I didn't balance the equation on both sides!

Thanks so much!
No problem. Anytime! I'm a big Math nerd. I was even on the Math Team in HS.

[Thebazile78]

No problem. Anytime! I'm a big Math nerd. I was even on the Math Team in HS.

That's OK; I was captain of the Quiz Bowl team in high school. And one of my favorite TV shows growing up was Square One Television on PBS. Without it, I probably wouldn't have cared about the 9's trick or known about Fibonacci sequences.

I don't often get a chance to do anything more complex than addition and subtraction around here, so ignoring the fact that I had two terms of the same variable in an equation ... and then forgetting to balance the equation ... is unsurprising.

One doesn't use many maths as a professional monkey.

[BeerBandit]

That's OK; I was captain of the Quiz Bowl team in high school. And one of my favorite TV shows growing up was Square One Television on PBS. Without it, I probably wouldn't have cared about the 9's trick or known about Fibonacci sequences.

I don't often get a chance to do anything more complex than addition and subtraction around here, so ignoring the fact that I had two terms of the same variable in an equation ... and then forgetting to balance the equation ... is unsurprising.

One doesn't use many maths as a professional monkey.
The Fibonacci sketch? Did that have Blackstone the Magician?

[Thebazile78]

The Fibonacci sketch? Did that have Blackstone the Magician?

No, the parrot "episode" of MathNet. Here are parts 1 & 2 of the Finale/Wrap-Up:

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/hrLjLeGUjio&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/hrLjLeGUjio&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/vLhQfcZ-BWk&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/vLhQfcZ-BWk&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

[BeerBandit]

No, there was definitely a Blackstone sketch where he talks about Fibonacci Numbers. I can hear him say the word "Fibonacci."

Speaking of which, are ya a Tool Fan? Crazy mathematics on "Lateralus."

[Thebazile78]

No, there was definitely a Blackstone sketch where he talks about Fibonacci Numbers. I can hear him say the word "Fibonacci."

Speaking of which, are ya a Tool Fan? Crazy mathematics on "Lateralus."

I don't recall the Blackstone Fibonacci bit, but I don't doubt it was there. I'll search around YouTube again for it. The one I have indelibly etched in my memory is the MathNet episode I posted above.

I was getting into Tool by Junior/Senior year of college, but really felt like a poser saying I liked them. But I enjoyed their lyrics ... unfortunately, the only other person I knew who also got into Tool was my ex-boyfriend. And that was a BAD breakup.

(There are a lot of bands I like, but I kind of feel like a poser saying I like them because I could be perceived as incredibly conservative. I think it's the glasses that do it.)

[BeerBandit]

I don't recall the Blackstone Fibonacci bit, but I don't doubt it was there. I'll search around YouTube again for it. The one I have indelibly etched in my memory is the MathNet episode I posted above.

I was getting into Tool by Junior/Senior year of college, but really felt like a poser saying I liked them. But I enjoyed their lyrics ... unfortunately, the only other person I knew who also got into Tool was my ex-boyfriend. And that was a BAD breakup.

(There are a lot of bands I like, but I kind of feel like a poser saying I like them because I could be perceived as incredibly conservative. I think it's the glasses that do it.)
Why would you feel like a poser? Do you just say that you like them, but have never really heard them, or have heard one or two songs?

I tried to find that fibonacci sketch on the innerwebs and no luck. I did find info on a sketch he did where you can multiply 142857 times any number from 1-6 and get a permutation of 142857. Blew my mind.

[Thebazile78]

Why would you feel like a poser? Do you just say that you like them, but have never really heard them, or have heard one or two songs?

I tried to find that fibonacci sketch on the innerwebs and no luck. I did find info on a sketch he did where you can multiply 142857 times any number from 1-6 and get a permutation of 142857. Blew my mind.

Mostly it's bands/artists where I've only heard their music, but wouldn't consider myself a "fan" ... like I'd go to a concert and have a rough familiarity with the material and have a good time (like I did when I went to see Tori Amos) but I wasn't one of the people singing along with every song. I also consider "fandom" to extend beyond simply enjoying the music.

I was searching for the Fibonacci and the Tool song pulled up ... looks cool. Maybe I will check it out later, while I'm not at the office.

I remember that Blackstone bit. Thought it was the greatest thing EVER and wanted to show my friends. Needless to say, they were less than impressed. (Stupid girls.)

[mendyweiss]

nm

[BeerBandit]

nm
Number Tease.

[mendyweiss]

Let's Mix It Up A Little With Some Word Puzzles...


1. Animals That Come Out At Night Are " Nocturnal", And THose Coming Out During The Day Are "Diurnal". Animals That Come Out At Twilight Are Called _____ ?

2. Primary, Secondary, Tertiary,Quaternary,Quinary, ______ ?


3. Palaver Means: a. Idle Talk
b. Concrete
c. Curved



4. One Of The Following Is A "Vulgar" Fraction.
Which One?

a. 17/.93


b. 3/14



c. 5/0



d. 1and 1/3 over 3 and 3/11

[BeerBandit]

Let's Mix It Up A Little With Some Word Puzzles...


1. Animals That Come Out At Night Are " Nocturnal", And THose Coming Out During The Day Are "Diurnal". Animals That Come Out At Twilight Are Called _____ ?
evenurnal?
2. Primary, Secondary, Tertiary,Quaternary,Quinary, ______ ?
Sextary?

3. Palaver Means: a. Idle Talk
b. Concrete
c. Curved

a?

4. One Of The Following Is A "Vulgar" Fraction.
Which One?

a. 17/.93


b. 3/14



c. 5/0



d. 1and 1/3 over 3 and 3/11
d?

[Freakshow]

No, there was definitely a Blackstone sketch where he talks about Fibonacci Numbers. I can hear him say the word "Fibonacci."

Speaking of which, are ya a Tool Fan? Crazy mathematics on "Lateralus."

Black
then
White Are
All I see
In my infantcy
Red and Yellow then come to me
reaching out to me
lets me see

[BeerBandit]

Black
then
White Are
All I see
In my infantcy
Red and Yellow then come to me
reaching out to me
lets me see

1, 1, 2, 3, 5, 8, 5, 3.

Talk about math nerds.

[mendyweiss]

1. Crepuscular

2. Senary

3. A. Idle Talk

4 b. 3/14
A Vulgar Fraction Is A Fraction In The Form Of One Integer Divided By Another,Non-Zero Integer

[Thebazile78]

Good morning fellow math-lovers!

I have a question, seeing as how I am limited in my ability to write correct mathematical formulae by the permissions set in my markups, about how to properly render powers when superscript text rendering is not permitted.

Examples:

Does 2^2 mean "2 squared" or does it mean something else?
Does (1+r)^n mean "(one plus 'r') to the power of 'n'" or something else?

Also, is there an appropriate way to render subscripts as well?

Thanks in advance.

[boonanas]

Good morning fellow math-lovers!

I have a question, seeing as how I am limited in my ability to write correct mathematical formulae by the permissions set in my markups, about how to properly render powers when superscript text rendering is not permitted.

Examples:

Does 2^2 mean "2 squared" or does it mean something else?
Does (1+r)^n mean "(one plus 'r') to the power of 'n'" or something else?

Also, is there an appropriate way to render subscripts as well?

Thanks in advance.


2^n means 2 to the nth degree, so yes to both.

I've seen people render subscripts as 2_r, r being the subscript, but for an appropriate way I don't know.

[JPMNICK]

Good morning fellow math-lovers!

I have a question, seeing as how I am limited in my ability to write correct mathematical formulae by the permissions set in my markups, about how to properly render powers when superscript text rendering is not permitted.

Examples:

Does 2^2 mean "2 squared" or does it mean something else?
Does (1+r)^n mean "(one plus 'r') to the power of 'n'" or something else?

Also, is there an appropriate way to render subscripts as well?

Thanks in advance.

the "^" symbol always refers to raising something to a power when discussing math. When you program computer software this is how you will use exponents.

Does (1+r)^n mean "(one plus 'r') to the power of 'n'" or something else?
this mean the quantity 1+r raised to the n power, so you are correct

[mendyweiss]

If The Volume Of A Cube Is Found By L x W x H, And The Volume Of A Prism Is Found By

L x W x H
2


Then The Volume Of A Pyramid Is :


a. L x W x H X 4

b. L x W x H
3

c. 4(L x W x H)
3


d. (L x W x H) squared
3


edit ; choices b, c and d are divided by 3, sorry

[Thebazile78]

the "^" symbol always refers to raising something to a power when discussing math. When you program computer software this is how you will use exponents.


this mean the quantity 1+r raised to the n power, so you are correct

Thanks to both you and mendy; much appreciated.

I'm not touching the subscripts at this point. (I really should have the ability to appropriately render equations, but the content model doesn't appear to be available to me in these instances. Which really stinks, but it may mean that I need to go back to the data architects and get a more use-able content model created.)

[JPMNICK]

If The Volume Of A Cube Is Found By L x W x H, And The Volume Of A Prism Is Found By

L x W x H
2


Then The Volume Of A Pyramid Is :


a. L x W x H X 4

b. L x W x H
3

c. 4(L x W x H)
3


d. (L x W x H) squared
3


edit ; choices b, c and d are divided by 3, sorry

are we assuming it is a square based pyramid?
if so I would say answer B

[JPMNICK]

Thanks to both you and mendy; much appreciated.

I'm not touching the subscripts at this point. (I really should have the ability to appropriately render equations, but the content model doesn't appear to be available to me in these instances. Which really stinks, but it may mean that I need to go back to the data architects and get a more use-able content model created.)

ok well if you are going to get into it, then I will clarify what I said. I said computer programs use "^" to denote raising something to a power. while this is true in a lot of languages, other more structured langues use function calls. C++ for instance uses the POW() as you can use it as a double, long double, or float. not sure how into it you are going to get, but just a heads up

[dryerdoor]

Since we're talking Math, anyone good at Unix/Perl or C++?

[Thebazile78]

ok well if you are going to get into it, then I will clarify what I said. I said computer programs use "^" to denote raising something to a power. while this is true in a lot of languages, other more structured langues use function calls. C++ for instance uses the POW() as you can use it as a double, long double, or float. not sure how into it you are going to get, but just a heads up

I'm not doing programming - that would actually be interesting - but I'm trying to mark up some interest and devaluation formulae in a tax book without distorting the meaning.

We have a content model that would allow the formulae to behave properly, but it doesn't appear to be active at present. Which stinks.

[mendyweiss]

are we assuming it is a square based pyramid?
if so I would say answer B

Correct, Nick

[SatCam]

Since we're talking Math, anyone good at Unix/Perl or C++?

unfortunately :help: a blessing and a curse

[ahhdurr]

I had an algebra exam today ... i was killing this thing then the last one.

solve for x:

7/x+2-1/x = 3/2x

this should be an afterthought for someone here. I erased a hole in my exam paper. And then shouted "noooooooooooooooooo!" and threw a desk.

Ok, I nearly erased a hole.

Thanks.

[ahhdurr]

:ahem::help:

[sailor]

some parentheses would help. like is it 7 over x+2 OR is it 7 over x and then two is added to that total? i suppose i should assume it's the latter, but i'd rather not do work based on how it looks and have the problem be totally different.

[AF Mike]

:ahem::help:

7 / ( x + 2 ) - 1 / ( x ) = 3 / (2x ) group like denominators on same side of
Equation

7 / ( x + 2 ) = 3 / (2x ) + 1 / ( x ) Common denominator on right – combine terms


7 / ( x + 2 ) = 5 / (2x ) clear denominator on left

7 = ( 5 / (2x ) ) * ( x + 2 ) multiply out numerator on right

7 = ( 5x + 10 ) / ( 2x ) separate to isolate unknown

7 = ( 5 / 2 ) + ( 5 / ( x ) ) group like terms and solve for x

X = ( 10 / 9 )

Hope this helps !!

[ahhdurr]

7 / ( x + 2 ) - 1 / ( x ) = 3 / (2x ) group like denominators on same side of
Equation

7 / ( x + 2 ) = 3 / (2x ) + 1 / ( x ) Common denominator on right – combine terms


7 / ( x + 2 ) = 5 / (2x ) clear denominator on left

7 = ( 5 / (2x ) ) * ( x + 2 ) multiply out numerator on right

7 = ( 5x + 10 ) / ( 2x ) separate to isolate unknown

7 = ( 5 / 2 ) + ( 5 / ( x ) ) group like terms and solve for x

X = ( 10 / 9 )

Hope this helps !!
Dammit!

Thank you.

The thing that really helped me was realizing that 2x and x were alike and I could put them on the same side of the = sign and then solve. It was a layup from there.

(oh - I got an 87 on the test HOO!... average for the class was 72)

[ahhdurr]

I'm averaging an 85 in my math class. Strangely - when I had much less of an idea of what was going on in a math class and my primary concerns were having fun (instead of living a life more akin to a repeated dull thud somewhere in my cranium - over and over and over the same ... BWAA HAAA HAAAAAA!!!! I'm ok, I'm ok)

My average was the same.

Wtf?

[ecobag2]

Final exam today wish me luck! I think even if I don't take another class I feel like I'll be looking to keep math - and learning math - a part of things from now on.

I think clearer.

[Dougie Brootal]

Final exam today wish me luck! I think even if I don't take another class I feel like I'll be looking to keep math - and learning math - a part of things from now on.

I think clearer.

good luck and give my number to all the asian chicks in your class.

[cougarjake13]

calc 1 was the highest i took


dont use much of any hard math nowadays

[RogerPodacter]

i went ahead and got my engineering degree from penn state, and i HIGHLY recommend it if that's your goal. its basically a free pass in this country to ALWAYS have a job and make good money.

[ecobag2]

Got a B+ booyah.

Highest college math grade yet.

Now they tell me I can't take precalc till another algebra but that's cool. I want to be solid.

[mendyweiss]

From Mendy jr's math club
(Hey there are hot asian chicks in the club !!)

If today is Monday and I told you
I would meet you for dinner three
days after two days before the day
before tomorrow, when would I
meet you ?

[boonanas]

Right now I'm taking Vector Calculus, University Physics II, Fund. of Modern Statistics II, and Fluid Mechanics. It should be my last semester and I should have a degree in Mathematical Sciences by May. What I'll do with it? WHO KNOWS!

[disneyspy]

From Mendy jr's math club
(Hey there are hot asian chicks in the club !!)

If today is Monday and I told you
I would meet you for dinner three
days after two days before the day
before tomorrow, when would I
meet you ?

that depends,are you a hot chick?

[Thebazile78]

From Mendy jr's math club
(Hey there are hot asian chicks in the club !!)

If today is Monday and I told you
I would meet you for dinner three
days after two days before the day
before tomorrow, when would I
meet you ?

Today (Monday.)

WORK:

(1) Today is Monday. "Today" is also the day before "Tomorrow." Monday = position 1.
(2) Two days before today is Saturday. Saturday plus three days is Monday.
(3) If Today is Monday, you are meeting for dinner Today.

[disneyspy]

Today (Monday.)

WORK:

(1) Today is Monday. "Today" is also the day before "Tomorrow." Monday = position 1.
(2) Two days before today is Saturday. Saturday plus three days is Monday.
(3) If Today is Monday, you are meeting for dinner Today.

but s/he never answered my question,i'm not gettin roped into another one of those dinner dates ever again,no way

[mendyweiss]

Today (Monday.)

WORK:

(1) Today is Monday. "Today" is also the day before "Tomorrow." Monday = position 1.
(2) Two days before today is Saturday. Saturday plus three days is Monday.
(3) If Today is Monday, you are meeting for dinner Today.

I'll pick you up at 7 pm

[mendyweiss]

but s/he never answered my question,i'm not gettin roped into another one of those dinner dates ever again,no way
You're coming too. It will be a threesome !!

[BeerBandit]

From Mendy jr's math club
(Hey there are hot asian chicks in the club !!)

If today is Monday and I told you
I would meet you for dinner three
days after two days before the day
before tomorrow, when would I
meet you ?
Tomorrow.
The day before tomorrow is today. Three days after two days before today is tomorrow.

[Thebazile78]

Tomorrow.
The day before tomorrow is today. Three days after two days before today is tomorrow.

D'oh. I had the logic, but messed up the count ... I counted Saturday as Day 1 in the 3 days!

[mendyweiss]

Ok peoples, next number in this sequence:


50 46 54 38 70 6 134 ?

[disneyspy]

Ok peoples, next number in this sequence:


50 46 54 38 70 6 134 ?

-22?

[ToiletCrusher]

Ok peoples, next number in this sequence:


50 46 54 38 70 6 134 ?

-22?

-122

[disneyspy]

-122

shit,ya 2 X 1=2,im stoop

[mendyweiss]

-122

A gold star for toiletcrusher

-4, +8, -16, +32, -64, + 128, -256

[Dude!]

512

[ooger]

Another Mechanical Engineering student. Differential Equations and Vector Calculus are the highest i've had to take for my BS.

I'll probably take Partial Differential Equations in the fall or linear for the heck of it depending on who is teaching it.