public void AfterSubLevelsCountIsSameAsInFirstNumber()
{
var levelsLeft = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(1.0, 3.0)},
{0.5, new IntervalD(0.5, 2.5)},
{1.0, new IntervalD(2.0, 2.0)},
};
var x = new DiscreteFuzzyNumber(levelsLeft);
var levelsRight = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(1.0, 3.0)},
{0.5, new IntervalD(0.5, 2.5)},
{1.0, new IntervalD(2.0, 2.0)},
};
var y = new DiscreteFuzzyNumber(levelsRight);
var sum = x.Sub(y);
Assert.That(sum.LevelsCount, Is.EqualTo(3));
}
public void CorrectlySubNumbers()
{
var levelsLeft = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(1.0, 3.0)},
{0.5, new IntervalD(0.5, 2.5)},
{1.0, new IntervalD(2.0, 2.0)},
};
var x = new DiscreteFuzzyNumber(levelsLeft);
var levelsRight = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(1.0, 3.0)},
{0.5, new IntervalD(0.5, 2.5)},
{1.0, new IntervalD(2.0, 2.0)},
};
var y = new DiscreteFuzzyNumber(levelsRight);
var sum = x.Sub(y);
Assert.That(sum.GetAlphaLevel(0.0), Is.EqualTo(new IntervalD(1.0 - 1.0, 3.0 - 3.0)));
Assert.That(sum.GetAlphaLevel(0.5), Is.EqualTo(new IntervalD(0.5 - 0.5, 2.5 - 2.5)));
Assert.That(sum.GetAlphaLevel(1.0), Is.EqualTo(new IntervalD(2.0 - 2.0, 2.0 - 2.0)));
}