I hope this helps.Best graph software?

[purejoker]

Hi there,

Which is best graph software to plot the following functions?

2.5 + 10/Pi sin1/4.Pi.t

and

2.5 + 10/Pi ∑ 1/(2n-1) sin (2n-1)Pi.t/4

Limits for ∑ are: top = 20 bottom = n=1

I want to show the first 20 terms of this series.

I’m trying to show how Fourier series is made up off many trigonometric functions.

Can someone suggest a good program to use to plot these graphs?

Thanks

 

[kidmode01]

I've only used Maple and MATLAB, they are easy to use but expensive. I recently heard of Sage: http://www.sagemath.org/index.html

It's free and looks very powerful but I've never used it before.

 

[slider142]

Another free but powerful combination is the computer algebra system Maxima in combination with GNUPlot.

 

[Edgardo]

I second what slider142 wrote. Try using Maxima. A nice 10 minute tutorial can be found here.