Old 01-25-2009, 03:46 AM #1
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Default The Math Thread

Ok, this is the official Math Thread (certified by Chuck's Fist, if you have any doubts then you will be dead in 2 seconds or less).

Post your math problems, theories, cool math stuff, you know, like e or Phi or number of horns on a unicorn.



Note to everybody: Use THIS thread if you want to post something related to math, this way we won't let the thread die and all cool math stuff can be just right here.


YAY.


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Old 01-30-2009, 06:21 AM #2
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Default Re: The Math Thread

1/0 ;D
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Old 01-30-2009, 09:24 AM #3
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Default Re: The Math Thread

Ok here's one for you. I'm gonna have an exam out of these things in three days and I've been having trouble with surface generation problems.
Code:
Write the equation of a circular cilindrical surface which contains the lines: 
x=y=z
x+1=y=z-1
x-1=y+1=z-2
Ok , so far I know the direction, the generators, and I need the directrix curve which should be a circle that contains the intersection points of those lines with a plane perpendicular to them.Those 3 points form a triangle that "fits right into my circle" (lol , I don't know the mathematical term in english :P) . I need the coordinates for the center of that circle and its radius.The perpendicular plane is also easily obtainable.

Anyone care to help? :

Btw, what kind of math do you guys study at college? I'm just a first year at robotics.I study some algebra(determinants, gauss-jordan method) , analytic geometry^ , and analysis (partial derivatives, integrals, differentials, Taylor ,macLaurin).And some differential geometry next semester.
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Old 01-30-2009, 07:38 PM #4
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Default Re: The Math Thread

... yea, I thought so :
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Old 02-01-2009, 08:54 PM #5
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Default Re: The Math Thread

Quote:
Originally Posted by Switch
Ok here's one for you. I'm gonna have an exam out of these things in three days and I've been having trouble with surface generation problems.
Code:
Write the equation of a circular cilindrical surface which contains the lines: 
x=y=z
x+1=y=z-1
x-1=y+1=z-2
Ok , so far I know the direction, the generators, and I need the directrix curve which should be a circle that contains the intersection points of those lines with a plane perpendicular to them.Those 3 points form a triangle that "fits right into my circle" (lol , I don't know the mathematical term in english :P) . I need the coordinates for the center of that circle and its radius.The perpendicular plane is also easily obtainable.

Anyone care to help? :

Btw, what kind of math do you guys study at college? I'm just a first year at robotics.I study some algebra(determinants, gauss-jordan method) , analytic geometry^ , and analysis (partial derivatives, integrals, differentials, Taylor ,macLaurin).And some differential geometry next semester.

Well, I've got to take my algebra final this next week (or so, I don' remember the exact date yet :P), so i'll have to study all that stuff again.

so i could help you with that problem, but right now my brain does not want to touch anything related to the subject. it's that time lapse before the exam where you just don't want to know anything but listening to music or something else ;D


this last 2008 i studied mathematical analysis (sorry, but it's not easy to translate the subjects' names into english :P), algebra and physics. this 2009 i'll have to take physics II, math. analysis II and probability & statistics

(besides other subjects, of course)
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Old 02-01-2009, 10:38 PM #6
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Default Re: The Math Thread

Well, the exam's tomorow.....then I have the materials science exam two days later....the last one....then 18 glorious days of freedom I'll tell you how it goes. ;D

Btw, what's your major, and what year?
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Old 02-01-2009, 11:10 PM #7
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Default Re: The Math Thread

Quote:
Originally Posted by Switch
Well, the exam's tomorow.....then I have the materials science exam two days later....the last one....then 18 glorious days of freedom I'll tell you how it goes. ;D

Btw, what's your major, and what year?

First year of industrial engineering. I already have enough to digest :P
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Old 02-01-2009, 11:49 PM #8
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Default Re: The Math Thread

Quote:
Originally Posted by abadcaffeinetrip
Good memories. *I was in Electrical Engineering for a while but ended up graduating with a degree in journalism. * ;D
LOL! Big change!
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Old 02-02-2009, 05:39 AM #9
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Default Re: The Math Thread



edit: applies under "cool math stuff"
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Old 02-02-2009, 06:04 AM #10
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Default Re: The Math Thread



There you go, counter-attack this!
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Old 02-02-2009, 06:11 AM #11
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Default Re: The Math Thread




Consider yourself countered, Sir!
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Old 02-02-2009, 06:33 AM #12
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Default Re: The Math Thread

I COULDN'T WAIT FOR A COUNTER... I LIKED THIS

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Old 02-02-2009, 06:56 AM #13
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Default Re: The Math Thread

I know all those...there's even a powerpoint presentation with ALL of them :P


you won't have to wait long till somebody posts the guy that hangs himself from a square root
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Old 02-02-2009, 03:46 PM #14
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Default Re: The Math Thread

What about this one:

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Old 02-02-2009, 05:31 PM #15
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Old 02-02-2009, 08:20 PM #16
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Default Re: The Math Thread

Quote:
Originally Posted by iskor12

I've gotta make a T-Shirt with that printed on it!
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