CẤU TRÚC VÀ CÁC HÀM THAO TÁC TRÊN SỐ PHỨC
#include <math.h>
typedef struct tagcomplex {
float thuc, ao;
} complex;
complex tong(complex a, complex
{
complex c;
c.thuc = a.thuc + b.thuc;
c.ao = a.ao + b.ao;
return c;
}
complex hieu(complex a, complex
{
complex c;
c.thuc = a.thuc - b.thuc;
c.ao = a.ao - b.ao;
return c;
}
complex tich(complex a, complex
{
complex c;
c.thuc = a.thuc*b.thuc - a.ao*b.ao;
c.ao = a.thuc*b.ao + a.ao*b.thuc;
return c;
}
complex thuong(complex a, complex
{
complex c;
float tongbp;
tongbp = b.thuc*b.thuc + b.ao*b.ao;
c.thuc = (a.thuc*a.ao + b.thuc*b.ao)/tongbp;
c.ao = (a.ao*b.thuc - a.thuc*b.ao)/tongbp;
return c;
}
float argument(complex a)
{
return acos(a.
thuc/sqrt(a.
thuc*a.
thuc + a.
ao*a.
ao)); }
float modul(complex a)
{
return sqrt(a.
thuc*a.
thuc + a.
ao*a.
ao); }
void print_complex(complex a)
{
printf("%.2f + %.2fi", a.
thuc, a.
ao); }
void main()
{
complex a, b, c;
printf("\nNhap he so thuc va phuc cua A : "); scanf("%f%f", &a.
thuc, &a.
ao); printf("\nNhap he so thuc va phuc cua B : "); scanf("%f%f", &b.
thuc, &b.
ao); print_complex(a);
print_complex( ;
printf("\nTong cua chung = "); c = tong(a, ;
print_complex©;
printf("\nHieu cua chung = "); c = hieu(a, ;
print_complex©;
printf("\nTich cua chung = "); c = tich(a, ;
print_complex©;
printf("\nThuong cua chung = "); c = thuong(a, ;
print_complex©;
printf("\nArgument cua a = %f", argument
(a
)); printf("\nModul cua a = %f", modul
(a
)); getch();
}