what did eli whitney do for math?
958189
Eli Whitney is best known for inventing the cotton gin. He also found a way to mass produce firearms, although he is not as widely known for this.
763185
I believe he wants you to write the given equation in the standard form for YSUB1 whatever that is.\n\nGuido
687554
Teach High School Math
478213
Properties of mathematics makes it work. I'm not sure exactly what it has you do but essentially it does this.\n\nIf your number is X. You add 5 to it then subtract 5 from it and you get your original number. Of course the nice ones hide the fact that your doing exactly this. \n\nDavid Copperfield did a TV bit once where he had a 3X3 square. You start out at any square you want and move according to his directions. After each move he took away a square. In the end you always end up on one square. That was cool. Anyone heard of it?
218138
http://www.aaregistry.com/african_american_history/2511/William_Claytor_a_genius_in_Math\n\nhttp://www.math.buffalo.edu/mad/PEEPS/claytor_wschieffelin.html\n\nhttp://www.archives.upenn.edu/histy/features/aframer/math.html
765212
Nothing I remember.  Hated math.  Just did not have the aptitude for it.  Give me English and Literature anytime!
483592
You use math everyday
865183
You mean the "weapons of math instruction" ?
167256
I think he submitted his homework questions to Yahoo Answers!
190806
You would think Pythagoras, but actually not originally.\nHe studied many years at the library of Alexandria (Ancient Egypt), whereupon he came upon this theorem (now named after him) first recorded by an ancient Egyptian mathematician known as (I think) Tet.\nSince it was not permitted to take things from the library, or even copy them he memorized it, then later taught it to his disciples as his own.
1095182
Most of the answers have gone off on a rant about math. Pretty funny. I teach math, and that is the only question I ever get...when am I ever gonna use this? Well, SOME of you will be math teachers. Even if you say "oh no, not me". We don't fall out of the sky. Someone does it, and it might be YOU!!!   ;)\n\nTo answer your question on transformations, they are used in many places. Would an accountant use it...NO!! But imagine moving a sofa from one house to another. First you slide it across the room (hardwood floors), which is a translation. Then you angle it to go around a corner and down the hall...that is a rotation. Then you pick it up and turn it upside down to get it out the door, that would be a reflection!\n\nHere is a better example: a video game programmer. You couldn't possibly program every position into the game...it would take an enormous amount of storage. What they do is program the basic shape of the monster, then make him undergo transformations such as translations and rotations to give him action. Next year when you take intermediate algebra you will see something called matrices. These are what are used in essence by some coders to make the objects you see come to life.\n\nAnd since I am bored right now, let me give you the first example in history where this math was used by industry: the industrial revolution! Textile makers realized that they could program their machines to make repeated patterns for the clothes (usually glide reflections). We know that the industrial revolution led to our current craze with oil and energy use, which is causing the greenhouse effect (unless you are G.W.Bush), which will possibly alter the Earth's environment permanantly, causing the demise of humans. Imagine: math destroying the world!! Rub that in your math teachers face!\n\nBut I don't recommend throwing pancakes...that could get messy!\n\nps: to the accounting major (2 year degree): if you get a 4 year degree in accounting at the University of Utah, and probably many other places, you have to take math through calculus...they use math abilities to weed people out of programs. Is that why you stopped at two years??
339964
Mathematical Analysis!
806733
-do some mathematics every day, like for 1 hour\n-ask a lot of questions
753256
An abacus was used for subtraction and addition.\n\nhttp://www.iit.edu/~smile/ma9007.html
761088
I don't know... I try to use math as little as possible... today I'm up to only 8 times.... doh!  counting them makes 9!
653242
Check out http://math.mit.edu/research/index.html
581534
I have written a math book that explains math in plain English.  It is called Mauk Math.  I teach math and I could not find any math book that I liked so I decided to write my own.  Math does NOT have to be difficult.  It CAM be explained in simple terms and it CAN be easy and even FUN.  I use music to learn certain concepts and help retain it.  I use songs to help break it down and make it easier.  For instance, when I teach how to make negative exponents positive I use Will Smith's song, SWITCH. We play the song in class and sing it.  Because that's how you make a negative exponent positive.... you switch it !  If it is on the top of a fraction... you switch it to the bottom.  If it is on the bottom...you switch it to the top...EASY!  In typical math books, they make it difficult by explaining it like this: a number taken to the -nth power in the denominator can be make positive by rewriting the fraction with the denominator as the numerator taken to the nth power.  Ridiculous...especially for the struggling student.  MAUK MATH uses M.C. Hammer's Hammertime to teach the order of operations.  You always do everything in parentheses first.  If something is outside the parentheses....CAN'T TOUCH THAT na na na na. break it down.  Math can be easy and fun with the right book.... my book.  LOL