Why is it a i2=-i2 in the image. is it just because clockwise is positve. I got it. Thanks

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only two real posts on the last 3 pages, 4 if you included my two (made after counting btw). This is not good for you guys and detracts from the forum appeal. it also takes a lot of energy and time which is wasted on many anonymous post. The sign up is so easy that anonymous posting is not required imo.

thank you. did it today and made more sense now. cheers.

thanks for the help.

btw, im sure calculus could take 7 pages to solve some equations, and some many many more pages and much time.

I think it could be maths using this ... http://en.wikipedia.org/wiki/Aleph_number

whatwhatwhatwhat

Oh, after the intro i was forgoten. lol.. that is probably for the best.

Opinionated would be wrong CPhill.. It is eagar learner, generous helper, (primaray schooler) and future math talent. imo

Hi, I was looking at this today in my work but doesnt n equal to the nth term, with values (in most cases 0,1,2,3,4,5,6,7...; but which could be set to be less than 1 also I guess.) Is this right, could you elaborate for me please. Thanks.

I set the ruler to 50cm, and found that the ruler grew 0.10725 (please check), then I found the ratio which was (ruler final by ruler initial) 1.002145 (please check I'm sure this is way to big of a number to be acurate), then I got stuck to calculate the rods actual growth and solve for the materials co-eficient of thermal expansion. Please assist me.