如有其他要求,請補充:
#包含“stdio.h”
void main()
{float f(float x,float y);
float x1,x2,f _ x;
Printf("輸入x1和x2:\ n ");
scanf("%f,%f ",& ampx1。x2);
f_x=f(x1,x2);
printf(" f(x)= " . 2f \ n ",f _ x);
}
浮點f(浮點x,浮點y)
{ float s;
s = 1.5 * x * x+0.5 * y * y-x * y-2 * x;
返回s;
}