public void DrawInterpolation(LambdaFunc func, float step)
{
DrawFunction((x) => (float)(50 * func(x / 100) + 100),
Color.Black);
double[] pointsX = new double[] { 0, Math.PI / 2, Math.PI, Math.PI * 3 / 2, Math.PI * 2 };
double[] pointsY = new double[] { func(pointsX[0]), func(pointsX[1]), func(pointsX[2]), func(pointsX[3]), func(pointsX[4]) };
DrawFunction((x) => (float)(50 * NewtonMethod.Newton(x / 100, pointsX, pointsY, (float)step) + 100), Color.Red);
DrawFunction((x) => (float)(50 * LagrangeMethod.Langrange(x / 100, pointsX, pointsY, (float)step - 0.6f) + 100), Color.Green);
}