Recommended Free Mathematics Software

  • #1

Main Question or Discussion Point

What free mathematics software do you use regularly or recommend for uniqueness ?
I use http://www.cs.ubc.ca/nest/imager/contributions/scharein/KnotPlot.html for quick graph checks or trivial numeric evaluation/integration. That it allows easy mouse-controlled rotation of 3-d surfaces is a welcome bonus.
What do you recommend ?

Edit: Whoops. Moderators feel free to move this to software.
 
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Answers and Replies

  • #2
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GraphCalc is good, but what if I want a conditional interval for my 3D graph?
For example, for [tex] y\left( {x,z} \right) = z\cos \left( {zx} \right) [/tex] , suppose I want to restrict the 3D image for values of x and z that will satisfy [tex] \left| {zx} \right| \leqslant \frac{\pi }{2} [/tex]

I can modify a window, but what if I want to set up this conditional interval ? (see Only the x and z values satisfying the condition, not the rest of the graph)
 
  • #3
bomba923 said:
GraphCalc is good, but what if I want a conditional interval for my 3D graph?
For example, for [tex] y\left( {x,z} \right) = z\cos \left( {zx} \right) [/tex] , suppose I want to restrict the 3D image for values of x and z that will satisfy [tex] \left| {zx} \right| \leqslant \frac{\pi }{2} [/tex]

I can modify a window, but what if I want to set up this conditional interval ? (see Only the x and z values satisfying the condition, not the rest of the graph)
Check out this page, and note that your equation under your condition can be translated to z(x,y) = y*cos(y*x)*(abs(x*y) <= (Math|pi)/2) . :smile:
 

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