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On a Mac, there is a Grapher.app which has many functions like: ordinary graphing, polar graphing, lin-log and log-log graphing, 3d graphing, derivatives, integrals, implicitly defined functions, equation solvers and much much more.

Is there anything similar (and preferably cheap/free) on Windows? I've seen many ordinary "graphing calculator" apps that can't do much more than graphing an ordinary function like y=3x^2.

I especially need the implicitly defined function grapher so I can graph 4y^2-5*e^(-2x)-x*y=4?

I've tried Wolfram Alpha, but I need to see more than the limited window it gives me.

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After a little searching I found the free Microsoft Mathematics which does a lot of the stuff I was looking for.

With the Mathematics 4.0 free download, you get a full-featured graphing calculator with a formulas and equations library, a triangle solver, a unit conversion tool, ink handwriting support, and more.

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There's the Graphing Calculator that came with Macs before Grapher was introduced (in 10.3). It's sorta expensive (at $100) but really easy to use and powerful.

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that is pretty expensive. After a little searching I found the free Microsoft Mathematics which does a lot of the stuff I was looking for. But thanks for the suggestion. – Albert Armea May 26 '11 at 21:50
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@Albert You should put that (the Microsoft Mathematics) as an answer, and maybe accept it (though I appreciate the points), as not everybody reads the comments. – CajunLuke May 26 '11 at 22:19
@Albert I second that, please use this system, it helps people find the answer more quickly. @CajunLuke I'd still give you +1 if you mind the points :) – slhck May 26 '11 at 22:31
and @slhck, I didn't know I could answer my own questions. Thanks for letting me know. – Albert Armea May 28 '11 at 21:20
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Winplot is the best free graphing software for Windows that I'm aware of: Winplot. Indeed, I came to this question because I'm looking for something for a Mac that will do as much as Winplot does (Grapher has some things it does better, but other things Winplot does and Grapher doesn't do).

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