draw equation.c programme

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ATL

haw to make equation in gui code (pow x,(2*x+3)/POW(x+3,0.5))//logx +4sin(x/5)
to draw that equation in graph

Posted 19-Jun-11 22:24pm

totakha

Updated 19-Jun-11 22:26pm

Richard MacCutchan

v2

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CPallini · Answer 1 · 2011-06-19T22:51:00

What as to do with ATL, your question?
Anyway, you may

Choose the x-range.
For each x evaluate the corrensponding y using the equation: you'll end up with an array of points.
Find out the y-range using the array of points.
Compute the {x, y} scale factors and offsets.
Use the graphics primitive of your system to draw the trasnformed points (translated and scaled) to the screen and connect them with lines.

If you are using Windows, the raw GDI functions like MoveToEx[^], LineTo[^] provides the functionalities required (you may use GDI+ for smoother output).