数学相关的C ++

Question

#include <stdio.h>
int main(){
  float a;
  printf("Enter Real Number: ");
  scanf("%f", &a);
  int b;
  b=a*0.393701/12;
  float c;
  c=a*0.393701%12;
  printf("b, c");
  return 0;
}

Gives the error

10|error: invalid operands of types 'float' and 'double(double, double)' to binary 'operator*'|
10|error: expected ';' before 'of'|

Can someone point out the error please?

Answer 1

You can use the modulo operator % only on integer types ( char , short , int , long , etc).

Also, you probably want to change printf("b, c") to printf("%d, %f",b,c) .

Answer 2

模运算符不对浮点运算

Answer 3

If you want to find out modulo of two floating point numbers then use fmod(real_number,real_number);

example:-

fmod(5.5,1.3);

output : 0.300000