public static Spectrum ByFunc([NotNull] Func<double, double> func, Region region, int n)
{
if (func == null) throw new ArgumentNullException("func");
if (n <= 0) throw new ArgumentOutOfRangeException("n");
var a = new double[n];
foreach (var i in Enumerable.Range(0, n)) {
var x = region.GetValue(((double) i)/n);
a[i] = func(x);
}
return new Spectrum(a, region);
}
public void GetValueは領域での与えられた比での値を返す(double ratio, double expected)
{
var r = new Region(0, 10);
Assert.AreEqual(expected, r.GetValue(ratio));
}