Why is there this error?
Didn't find out the problem,
# include "stdio.h"
# include "math. H"
Void main ()
{
Ge (double);
Double a, b, c, d;
A=2;
B=5;
C=2;
Ge (a, b, c);
}

Ge (double a, b double, double double c)
{
Double m;
M=(a - b + SQRT (* a * b * b - 4 c))/2 * a;
Return (m);
}

CodePudding user response:

Void main ()
{
double ge ();
Double a, b, c, d;
.

Red this sentence is what mean?

CodePudding user response:

See comments, for your reference:

 # include "stdio.h" 
# include "math. H" 
Void main () 
{
Ge (double a, b double, double double c);//function declarations must function to achieve consistent writing 
Double a, b, c, d; 
A=2; 
B=5; 
C=2; 
D=ge (a, b, c);//function returns assigned to d 
Printf (" % f \ n ", d);//output to see the results 

} 

Ge (double a, b double, double double c)//function to achieve 
{
Double m; 
M=(a - b + SQRT (* a * b * b - 4 c))/2 * a; 
Return (m); 
}