匿名用户
1级
2006-04-17 回答
定义一个struct作为复数，然后分别定义加减剩除运算。可以增加一个函数printcomplex来在主函数中以数学的形式输出复数。
typedef struct complex
{
double real; //实部
double image; //虚部
} COMPLEX;
COMPLEX add(COMPLEX a,COMPLEX b) //加法
{
COMPLEX sum;
sum.real = a.real+b.real;
sum.image = a.image+b.image;
return sum;
}
COMPLEX sub(COMPLEX a,COMPLEX b) //减法
{
COMPLEX diff;
diff.real = a.real-b.real;
diff.image = a.image-b.image;
return diff;
}
COMPLEX mul(COMPLEX a,COMPLEX b) //乘法
{
COMPLEX acc;
acc.real = a.real*b.real-a.image*b.image;
acc.image = a.real*b.image+a.image*b.real;
return acc;
}
COMPLEX divi(COMPLEX a,COMPLEX b) //除法
//除法去分母可以转换为乘法
{
COMPLEX quo;
double den = b.real*b.real+b.image*b.image; //分母
if ((abs(b.real)<10e-10) && (abs(b.image)<10e-10))
{
printf("Divivd by Zero");
exit(0); //强制退出程序
}
quo.real = a.real*b.real+a.image*b.image;
quo.real /= den;
quo.image = a.image*b.real+a.real*b.image;
quo.image /= den;
return quo;
}
void printcom(COMPLEX a) //输出复数a
{
printf("%lf+%lfi",a.real,a.image);
}