C Standard Library 简明教程

C Library - <complex.h>

complex.h 头文件是标准 C 库的一部分，它定义了用于处理复数的各种函数和宏。复数 (Z) 包含实部和虚部。

The complex.h header file is part of the standard C library, defines various functions and macros for working with complex numbers. The complex number (Z) contains of both a real part and an imaginary part.

复数表示为 x + yi，其中 x 是实部，y 是虚部，i 是虚数单位（定义为 -1 的平方根）。

A complex number represented as x + yi, where x is the real part, y is the imaginary part, and i is the imaginary unit (defined as the square root of -1).

C − complex.h Types

在头文件 complex.h 中定义了以下类型：

Following are the types defined in the header complex.h −

Sr.No.

Types & Description

1

imaginary This is imaginary type macro.

2

complex This is complex type macro.

Manipulation Functions

以下是一些操作函数：

Following are the Manipulation functions −

Sr.No.

Function & Description

1

double complex CMPLX(double real, double imag)This function construct a complex number from real and imaginary part.

2

double creal( double complex z )This function computes the real part of a complex number.

3

double cimag( double complex z )This function computes the imaginary part of the complex number.

4

double cabs( double complex z )This function calculate the magnitude of a complex number.

5

double carg( double complex z )This function calculate the phase angle of a complex number.

6

double complex conj( double complex z )This function calculate the complex conjugate.

7

double complex cproj( double complex z )This function calculates the projection on Riemann sphere.

Power Functions

以下是一些幂函数：

Following are the Power functions −

Sr.No.

Function & Description

1

double complex cpow( double complex x, double complex y )This function calculates the complex power function.

2

double complex csqrt( double complex z )This function calculates the complex square root.

Exponential Functions

以下是一些指数函数：

Following are the Exponential functions −

Sr.No.

Function & Description

1

double complex cexp( double complex z )This function calculates the complex base-e exponential.

2

double complex clog( double complex z )This function calculates the complex natural logarithm.

Trigonometric Functions

以下是一些三角函数：

Following are the Trigonometric functions −

Sr.No.

Function & Description

1

double complex csin( double complex z )This function calculates the complex sine.

2

double complex ccos( double complex z )This function calculates the complex cosine.

3

double complex ctan( double complex z )This function calculates the complex complex tangent.

4

double complex casin( double complex z )This function calculates the complex arc sine.

5

double complex cacos( double complex z )This function calculates the complex arc cosine.

6

double complex catan( double complex z )This function calculates the complex arc tangent.

Hyperbolic Functions

下面是双曲函数 −

Following are the Hyperbolic functions −

Sr.No.

Function & Description

1

double complex csinh( double complex z )This function calculates the complex hyperbolic sine.

2

double complex ccosh( double complex z )This function calculates the complex hyperbolic cosine.

3

double complex ctanh( double complex z )This function calculates the complex hyperbolic tangent.

4

double complex casinh( double complex z )This function calculates the complex arc hyperbolic sine.

5

double complex cacosh( double complex z )This function calculates the complex arc hyperbolic cosine.

6

double complex catanh( double complex z )This function calculates the complex arc hyperbolic tangent.