The sine, cosine and tangent of z, respectively.
static import std.math; assert(sin(complex(0.0)) == 0.0); assert(sin(complex(2.0L, 0)) == std.math.sin(2.0L));
static import std.math; assert(cos(complex(0.0)) == 1.0); assert(cos(complex(1.3L, 0.0)) == std.math.cos(1.3L)); assert(cos(complex(0.0L, 5.2L)) == std.math.cosh(5.2L));
Trigonometric functions on complex numbers.