Free Math Software: Find Area Under Graphs

[bryar]

do you guys know any free mathematical software that can help me find the area under a graph which can't be intergarted using just a level skills.

i already checked autograph but it kinda sucks and i looked other forums but didnt find a thing about this.

 

[jasonRF]

Maxima can do it - it has QUADPACk built in. It also does symbolic integration, and while isn't nearly as good as Mathematica, it is free and may surprise you!

Octave is also a free software package that can do numerical integration. It is like matlab, only less polished.

jason

 

[bryar]

the thing is i downloaded the maxema and it doesn't seem to work on my computer can i have link please?

and that octav one i couldn't get to draw the graph i have unfortunatly. if u do know how i can get it to draw a trig graph can u tell me ?

 

[CompuChip]

Does it have to be on your computer?
Otherwise, you could try www.wolframalpha.com.

 

[bryar]

thanks mate but how can i get it to find the area under the graph from 0-pi

 

[CompuChip]

Did you try it already?

http://www.wolframalpha.com/input/?i=area+under+x^2+for+x+=+-1+to+1

http://www.wolframalpha.com/input/?i=integrate+x^2