cargf, carg, cargl

来自cppreference.com

 
 
 
复杂的数字运算
类型和假想常数
Original:
Types and the imaginary constant
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操纵
Original:
Manipulation
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cimag
creal
carg
电源和指数函数
Original:
Power and exponential functions
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三角函数
Original:
Trigonometric functions
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双曲函数
Original:
Hyperbolic functions
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Defined in header <complex.h>
float       cargf( float complex z );
(C99 起)
double      carg( double complex z );
(C99 起)
long double cargl( long double complex z );
(C99 起)
计算参数(也称为相位角)z,沿负实轴的一个分支切割.
Original:
Computes the argument (also called phase angle) of z, with a branch cut along the negative real axis.
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[编辑] 参数

z -
复杂的参数
Original:
complex argument
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[编辑] 返回值

参数z在区间(−π; π)
Original:
The argument of z in the interval (−π; π).
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[编辑] 为例