public void FiniteFunctionImageTest()
{
var fun1 = new FiniteFunction <int, int>(
x => 2 * x,
new int[] { 1, 2, 3, 4 }
);
var image = fun1.Image().ToArray();
Assert.IsTrue(image.SequenceEqual(new int[] { 2, 4, 6, 8 }));
}
public void ContinuityTest1()
{
var fun1 = new FiniteFunction <int, int>(
x => 2 * x,
new int[] { 1, 2, 3, 4 }.OrderBy(e => e)
);
for (int epsilon = 1; epsilon < 10; ++epsilon)
{
fun1.Domain.ToList().ForEach(x =>
Assert.IsTrue(fun1.IsDiscontinuousAt(x, epsilon)));
}
}
