本文实例讲述了C语言实现直角坐标转换为极坐标的方法。分享给大家供大家参考，具体如下：

#include

#include

struct complex_s{

double x,y;

};

double real_part(struct complex_s z){

return z.x;

}

double img_part(struct complex_s z){

return z.y;

}

double magnitude(struct complex_s z){

return sqrt(z.x*z.x + z.y*z.y);

}

double angle(struct complex_s z){

return atan2(z.y, z.x);

}

struct complex_s make_from_real_img(double x, double y){

struct complex_s z;

z.x = x;

z.y = y;

return z;

}

struct complex_s make_from_mag_ang(double r, double A){

struct complex_s z;

z.x = r * cos(A);

z.y = r * sin(A);

return z;

}

struct complex_s add_complex(struct complex_s z1,struct complex_s z2){

return make_from_real_img(real_part(z1)+real_part(z2),

img_part(z1) + img_part(z2));

}

struct complex_s sub_complex(struct complex_s z1,struct complex_s z2){

return make_from_real_img(real_part(z1)-real_part(z2),

img_part(z1) - img_part(z2));

}

struct complex_s mul_complex(struct complex_s z1,struct complex_s z2){

return make_from_mag_ang(real_part(z1)*real_part(z2),

img_part(z1) + img_part(z2));

}

struct complex_s div_complex(struct complex_s z1,struct complex_s z2){

return make_from_mag_ang(real_part(z1)/real_part(z2),

img_part(z1) + img_part(z2));

}

int main(void){

struct complex_s z1 = {3.0,4.0};

struct complex_s z2= {2.0,5.0};

struct complex_s x;

x = add_complex(z1,z2);

printf("x={%f,%f}",x.x,x.y);

return 0;

}

结果：

[root@localhost struct]# ./jizuobiao.out

x={5.000000,9.000000}

希望本文所述对大家C语言程序设计有所帮助。