/// <summary>
/// renders the entered number and adjusts the font size by the number of digits
/// </summary>
/// <param name="number">Number to render on display</param>
private void show_number(double number)
{
display.FontSize = 36;
display.Text = "" + number;
if (display.Text.Length > 30)
{
display.Text = "" + dispString_to_numb(display.Text).ToString("e");
}
if (display.Text.Length > 17)
{
display.FontSize = 36 * Math.Pow(0.95, display.Text.Length - 17.0);
}
}
public void PowTest()
{
Assert.AreEqual(0, math.Pow(0, 42));
Assert.AreEqual(1, math.Pow(42, 0));
Assert.AreEqual(1, math.Pow(1, 42));
Assert.AreEqual(1, math.Pow(-1, 42));
Assert.AreEqual(-1, math.Pow(-1, 41));
Assert.AreEqual(36, math.Pow(6, 2));
Assert.AreEqual(1000, math.Pow(10, 3));
Assert.AreEqual(100000000, math.Pow(100000000, 1));
Assert.AreEqual(1024, math.Pow(2, 10));
Assert.AreEqual(59049, math.Pow(-3, 10));
Assert.AreEqual(15.625, math.Pow(2.5, 3), Exactness);
/// <summary> NaN result</summary>
string noFailMessage = "No exception message when result was NaN.";
try
{
math.Pow(-1, 0.5);
Assert.Fail(noFailMessage);
}
catch (Exception)
{
}
try
{
math.Pow(0, -1);
Assert.Fail(noFailMessage);
}
catch (Exception)
{
}
}