c programming homework

lab8.c

/*
*Name: Josh Martin
*Lab 7
*/

#include <stdio.h>
//quadratic function
void quad(double a,double b,double c);
//factorial function
void fact(long a);
int pyth(int a,int b,int c);
int main() {
  int i;

do{
  double a,b,c;

printf("****************************************************\nMake a choice \n1. Solve a quadratic eqation\n2. Find factorial of a number\n3. Check whether the number form a pyhagorean triplet\nPress 0 to quit!\n**************************************************** \n");
scanf("%d",&i);
  if (i==1){
    printf("Enter A,B, and C\n");
    scanf("%lf",&a); printf("\n");
    scanf("%lf",&b);printf("\n");
    scanf("%lf",&c);printf("\n");
    // printf("%lf %lf %lf\n",a,b,c);
    quad(a,b,c);
  }
  if (i==2){
    printf("Enter number Factorial\n");
    //fix this shit
    scanf("%lf\n",&a);
    printf("%lf\n",a);
    //fact(a,b,c);
  }
  if(i==3){
      printf("Enter A,B, and C\n");
      //fix this shit
      scanf("%lf\n",&a);
      scanf("%lf\n",&b);
      scanf("%lf\n",&c);
      printf("%lf %lf %lf\n",a,b,c);
      //pyth(a,b,c);
  }
}while(1);
  return 0;
}

void quad(double a,double b,double c) {
  if (a<=0) {
    printf("A can't be zero\n");
  }
  else{
    printf("hello hello %lf %lf %lf\n",a,b,c);
  }

}