Graphics Math Functions

vb certified · November 3rd, 2005, 11:04 PM

for example f(x)=x^2
or f(x)=sin(x)
where do i start? I know how to draw basic shapes on a form but i have no idea how to draw a function that is not a straight line. Thanks for any future help.

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BrianWren · December 7th, 2005, 04:45 PM

Over the span of the function, calculate the values incrementally. Armed with the results, draw lines or points representing them shifted incrementally to the right per incrementation, and elevated in the Y according to the value.

mtomy · January 1st, 2006, 11:06 AM

Hi,

There is what the yur response look like

Public function MyFunc(Byval x as Double) as double
    If Not(x.IsNaN) Then
      Return(Math.sin(x))
    else
      Return(Double.IsNaN)
    endif
end function

Public Sub DrawValue()
   Dim y as Double = 0D
   Dim z as Double = 0D
    Dim g as Graphics = Form1.CreatGraphics()
    For x as Integer=0 To 100
       y=CDbl(Math.PI*x)
       z=MyFunc(y)
       g.DrawLine(Pen.Black, Xx, Yy, y, z)
    Next
end Sub

MTOMY