Brandon Miller Brandon Miller - 3 months ago 20
C# Question

Plot a line (y = 2x + 7) on a graph

I am working on a scientific calculator in C#. I have the parsing engine and such, now I would like to add a graph so the user can plot a line. Is there any kind of control that will let me input a function and it will graph a line in the chart? I'm not talking about plotting individual points by the way.

Take this linear equation in slope-intercept form for instance:

f(x) = 2x + 7


The main goal is to allow the user to write
2x + 7
in a textbox, and then it will graph the line. It would be preferable if custom functions could be used other than just linear functions, such as:

((x - 8) * 4^2)/(7.136 + x)


But it's not a requirement. Is there a third-party control for this? If not could someone give me general help on how I would create such a control?

I have downloaded a program that graphs functions like this:

Desktop Graphing Calculator

Can anyone help me on how I can achieve this functionality in my Visual C# 2010 WinForms application?

Answer

I searched for mathematical function plot library for windows and found this:

  • FPlot a ".NET library for plotting functions and measurement data" (a project on CodeProject)

and you can try to use the source code of:

You'll have to check the licenses. I didn't try any of these, by the way.

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