public void AfterProductionLevelsCountIsSameAsInFirstFactor()
{
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 product = x.Mul(y);
Assert.That(product.LevelsCount, Is.EqualTo(3));
}
public void CorrectlyMultiplyZeroByZero()
{
var levelsLeft = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(-2.0, 2.0)},
{0.5, new IntervalD(-1.0, 1.0)},
{1.0, new IntervalD(0.0, 0.0)},
};
var x = new DiscreteFuzzyNumber(levelsLeft);
var levelsRight = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(-2.0, 2.0)},
{0.5, new IntervalD(-1.0, 1.0)},
{1.0, new IntervalD(0.0, 0.0)},
};
var y = new DiscreteFuzzyNumber(levelsRight);
var product = x.Mul(y);
Assert.That(product.GetAlphaLevel(0.0), Is.EqualTo(new IntervalD(-4.0, 4.0)));
Assert.That(product.GetAlphaLevel(0.5), Is.EqualTo(new IntervalD(-1.0, 1.0)));
Assert.That(product.GetAlphaLevel(1.0), Is.EqualTo(new IntervalD(0.0, 0.0)));
}
public void CorrectlyMultiplyPositiveNumbers()
{
var levelsLeft = new Dictionary<double, IntervalD>
{
{0.0, new IntervalD(1.0, 3.0)},
{0.5, new IntervalD(1.5, 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(1.5, 2.5)},
{1.0, new IntervalD(2.0, 2.0)},
};
var y = new DiscreteFuzzyNumber(levelsRight);
var product = x.Mul(y);
Assert.That(product.GetAlphaLevel(0.0), Is.EqualTo(new IntervalD(1.0, 9.0)));
Assert.That(product.GetAlphaLevel(0.5), Is.EqualTo(new IntervalD(2.25, 6.25)));
Assert.That(product.GetAlphaLevel(1.0), Is.EqualTo(new IntervalD(4.0, 4.0)));
}
public void CorrectlyMultiplyPositiveByZero2()
{
var x = new DiscreteFuzzyNumber(new TriangularFuzzyFunction(-3.0,-1.0,2.0), 3);
var y = new DiscreteFuzzyNumber(new TriangularFuzzyFunction(-2.0, 1.0, 4.0), 3);
var product = x.Mul(y);
Assert.That(product.GetAlphaLevel(0.0), Is.EqualTo(new IntervalD(-12.0, 8.0)));
Assert.That(product.GetAlphaLevel(0.5), Is.EqualTo(new IntervalD(-5.0, 1.25)));
Assert.That(product.GetAlphaLevel(1.0), Is.EqualTo(new IntervalD(-1.0, -1.0)));
}
