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version 2.098.0

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Function std.complex.acos

Inverse trigonometric functions on complex numbers.

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

Parameters

NameDescription
z A complex number.

Returns

The arcsine, arccosine and arctangent of z, respectively.

Example

import std.math.operations : isClose;
import std.math.constants : PI;
writeln(asin(complex(0.0))); // 0.0
assert(isClose(asin(complex(0.5L)), PI / 6));

Example

import std.math.operations : isClose;
import std.math.constants : PI;
import std.math.trigonometry : std_math_acos = acos;
writeln(acos(complex(0.0))); // std_math_acos(0.0)
assert(isClose(acos(complex(0.5L)), PI / 3));

Example

import std.math.operations : isClose;
import std.math.constants : PI;
writeln(atan(complex(0.0))); // 0.0
assert(isClose(atan(sqrt(complex(3.0L))), PI / 3));
assert(isClose(atan(sqrt(complex(3.0f))), float(PI) / 3));

Authors

Lars Tandle Kyllingstad, Don Clugston

License

Boost License 1.0