[計程考古題]線性方程

[shmm (shmm的暱稱)]

#include <stdio.h>

double delta(double a,double b,double d,double e)
{
        return a*e-b*d;
}

int main(void)
{
        double a,b,c,d,e,f;
        double x,y,del,del_x,del_y;
        double delta(double a,double b,double d,double e);
        printf("請依序輸入各項數值(a,b,c,d,e,f):\n");
        scanf("%lf%lf%lf%lf%lf%lf",&a,&b,&c,&d,&e,&f);
        del = delta(a,b,d,e);
        del_x = delta(c,b,f,e);
        del_y = delta(a,c,d,f);
        if(del==0)
        {
                if(del_x==0 && del_y==0) printf("無限多組解\n");
                else printf("無解\n");
        }
        else
        {
                x = del_x/del;
                y = del_y/del;
                printf("x=%lf\ty=%lf\n",x,y);
        }
        return 0;
}



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