C99中的复杂算术 [英] complex arithmetic in C99

问题描述

有人可以给我看一下或者给我一个声明和/或
来初始化C99复数的例子吗？另外，在查看

complex.h时，我没有看到任何库调用+ - *或/。

如何进行基本的算术运算？

David Marsh

解决方案

< blockquote> David Marsh写道：

有人可以给我看一下或者给我一个声明和

初始化C99复数的例子吗？另外，在查看complex.h时，我没有看到任何库调用+ - *或/。如何执行基本算术

操作？

David Marsh

#include< ; complex.h>

int main（无效）

{

复数c = 1.2 + 0.67 *我;

}


这定义了复数1.2 + 0.67i。

David Marsh写道：

有人可以给我看一下或者给我一个声明和

初始化C99复数的例子吗？另外，在查看

complex.h时，我没有看到任何库调用+ - *或/。

如何进行基本的算术运算？
David Marsh

ISO / IEC 9899：1999（E）？ISO / IEC

第128页语言§6.7.8

24示例1如果< complex.h已被#included，则

声明

int i = 3.5;

复数c = 5 + 3 * I;

定义并初始化我值3和c的值为5.0 +

i3.0。

" ; jacob navia" < ja *** @ jacob.remcomp.frwrote in message

news：45 *********************** @ news .orange.fr ...

David Marsh写道：

>有人可以给我看或者请给我举一个在C99中声明和初始化复数的例子？另外，在查看complex.h时，我没有看到任何库调用+ - *或/。如何进行基本的算术运算？

David Marsh

#include< complex.h>

int main（无效）

{

复数c = 1.2 + 0.67 *我;

}


这定义了复数1.2 + 0.67i。

浮_Complex，double _Complex和long double _Complex有效ISO C

类型？ LS

Can someone show me or point me to an example of declaring and
initializing complex numbers in C99? Also, in looking at
complex.h, I don''t see any library calls for + - * or /. How are
the basic arithmetic operations carried out?

David Marsh

解决方案

David Marsh wrote:

Can someone show me or point me to an example of declaring and
initializing complex numbers in C99? Also, in looking at complex.h, I
don''t see any library calls for + - * or /. How are the basic arithmetic
operations carried out?

David Marsh

#include <complex.h>
int main(void)
{
complex c = 1.2+0.67*I;
}

This defines the complex number 1.2+0.67i.

David Marsh wrote:

Can someone show me or point me to an example of declaring and
initializing complex numbers in C99? Also, in looking at
complex.h, I don''t see any library calls for + - * or /. How are
the basic arithmetic operations carried out?

David Marsh

ISO/IEC 9899:1999 (E) ?ISO/IEC
page 128 Language §6.7.8
24 EXAMPLE 1 Provided that <complex.hhas been #included, the
declarations
int i = 3.5;
complex c = 5 + 3 * I;
define and initialize i with the value 3 and c with the value 5.0 +
i3.0.

"jacob navia" <ja***@jacob.remcomp.frwrote in message
news:45***********************@news.orange.fr...

David Marsh wrote:

>Can someone show me or point me to an example of declaring and
initializing complex numbers in C99? Also, in looking at complex.h, I
don''t see any library calls for + - * or /. How are the basic arithmetic
operations carried out?

David Marsh

#include <complex.h>
int main(void)
{
complex c = 1.2+0.67*I;
}

This defines the complex number 1.2+0.67i.

Are float _Complex , double _Complex and long double _Complex valid ISO C
types? LS

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