C语言中的复数-C基础

  1 /*
  2  * Title : Complex Numbers
  3  * Description: Work with complex numbers in c
  4  * Author:Eric.Lee
  5  *
  6  */
  7 #include<stdio.h>
  8 #include<complex.h>
  9 
 10 #define Get_Array_Length(tempArray)(sizeof(tempArray)/sizeof(tempArray[0]))
 11 
 12 void GetResult(char operate,double complex x,double complex y)
 13 {
 14     double complex result = 0+0*I;
 15     switch(operate)
 16     {
 17         case ‘+‘:
 18             result = x+y;
 19             break;
 20         case ‘-‘:
 21             result = x-y;
 22             break;
 23         case ‘*‘:
 24             result = x*y;
 25             break;
 26         case ‘/‘:
 27             result =x/y;
 28             break;
 29         default:
 30             break;
 31     }
 32     printf("double complex x %c double complex y=%.2f+%.2fi\n",operate,creal(result),cimag(result));
 33 
 34 }
 35 
 36 int main()
 37 {
 38     double complex  x = 10.0+15.0*I;
 39     double complex y = 20.0-5.0*I;
 40 
 41     printf("working with complex number:\n");
 42     printf("Starting values:x=%.2f+%.2fi\ty=%.2f +%.2fi\n",creal(x),cimag(x),creal(y),cimag(y));
 43     char operates[] = {‘+‘,‘-‘,‘*‘,‘/‘};
 44     char * op = operates;
 45     int i = 0;
 46     int operateLength = Get_Array_Length(operates);
 47     for(i=0;i<=operateLength-1;i++)
 48     {
 49         GetResult(*(op++),x,y);
 50     }
 51 
 52     return 0;
 53 }