private void n5_KeyDown(object sender, KeyEventArgs e)
{
var temp = (sender as TextBox);
if (e.Key == Key.Enter)
{
if (temp.Text == string.Empty)
{
Fourier.Cleare(5);
}
else
{
int.TryParse(temp.Text, out int v);
Fourier.Draw(ffff.FourierSeries(v), -10, 10, 0.01, 5);
}
}
}
