Project Euler - Problem 5

so easy.

Project Euler - Problem 4

I thought a little bit cuz I'm new to Haskell.

Project Euler - Problem 3

I solved this in standard and boring way.

Project Euler - Problem 2

This was also so easy :)

Project Euler - Problem 1

that was so easy :)

Awesome! > Wolfram Alpha

Wolfram Alpha is awesome!

It really help me do my homework :-)

if you want to know the integrate x^2 by x from 10 to 20, just type

integrate 10 to 20, x^2

and press return key, wolfram alpha tell you the result.

you have to prove this problem lol