private void CalculatePi()
{
const int numIterations = 10000000;
PiCalculator piCalc = new PiCalculator();
for (int i = 0; i < 100; i++)
{
piCalc.Run(numIterations / 100);
ReportProgress(piCalc.PI, i);
}
ReportProgress(piCalc.PI, 100);
lblProgress.Visible = false;
btnStart.Enabled = true;
}