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version 2.094.0

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Function std.complex.tan

Trigonometric functions on complex numbers.

Complex!T tan(T) (
  Complex!T z
) pure nothrow @nogc @safe;

Parameters

NameDescription
z A complex number.

Returns

The sine, cosine and tangent of z, respectively.

Example

static import std.math;
writeln(sin(complex(0.0))); // 0.0
writeln(sin(complex(2.0L, 0))); // std.math.sin(2.0L)

Example

static import std.math;
writeln(cos(complex(0.0))); // 1.0
writeln(cos(complex(1.3L, 0.0))); // std.math.cos(1.3L)
writeln(cos(complex(0.0L, 5.2L))); // std.math.cosh(5.2L)

Example

static import std.math;
assert(ceqrel(tan(complex(1.0, 0.0)), complex(tan(1.0), 0.0)) >= double.mant_dig - 2);
assert(ceqrel(tan(complex(0.0, 1.0)), complex(0.0, tanh(1.0))) >= double.mant_dig - 2);

Authors

Lars Tandle Kyllingstad, Don Clugston

License

Boost License 1.0