public void Constructor_Cos() { IndeterminateExpression v = IndeterminateExpression.Cos('v'); v.IsOne.AssertIsFalse(); v.HasUnaryModifier.AssertIsTrue(); Assert.Throws <InvalidOperationException>(() => { var _ = (char)v; }); v.ToString().AssertIsEqualTo("Cos(v)"); v.ToPower(2).ToString().AssertIsEqualTo("CosĀ²(v)"); v.GetOperation('v').Value(0).AssertIsEqualTo(1); v.GetOperation('v').Value(Math.PI / 2).AssertIsEqualTo(0); v.ToPower(2).DerivativeBy('v').AssertIsEqualTo(-2 * Cos(Term.v) * Sin(Term.v)); v.SimplifyForConstant(0).AssertIsEqualTo(1); v.SimplifyForConstant(Math.PI / 2).AssertIsEqualTo(0); }
public void Cos_Variable() { PolynomialTerm.Cos(Term.a).AssertIsEqualTo(IndeterminateExpression.Cos('a')); }
public static PolynomialTerm Cos(PolynomialTerm term) => IndeterminateExpression.Cos((char)term);