static void Main(string[] args)
{
MathLibrary.PostFixExpression a;
string infix = "(x ^ 2) + 1 + (5/2)*";
a = new MathLibrary.PostFixExpression();
a.TryParsePostFixExpression(infix);
double result = 0;
a.TryToEvaluateForVariable("X", 1, ref result);
Console.WriteLine("result: ", result);
}
public void DrawEquation(string equation)
{
MathLibrary.PostFixExpression exp = new MathLibrary.PostFixExpression();
exp.TryParsePostFixExpression(equation);
double increment = (domainRangeMaxX - domainRangeMinX) / canvasWidth;
double xPosition = domainRangeMinX;
Point lastPoint = new Point();
while (xPosition < domainRangeMaxX)
{
double y = 0;
exp.TryToEvaluateForVariable("x", xPosition, ref y);
Point p1 = TransformToPixels(xPosition, y);
if (IsPointInCanvas(p1) && IsPointInCanvas(lastPoint))
{
graphics.DrawLine(System.Drawing.Pens.DarkRed, lastPoint, p1);
}
lastPoint = p1;
xPosition = xPosition + increment;
}
}