Printf float in C

Question

How do I trim the "0" after the coma while printing a float? Setting a precision doesn't work sufficiently because sometimes I need to display four digits after the coma, sometimes it's just two. My float is being divided so I can't predict the exact precision I need, but I need to display it in the shortest form possible without rounding.

Answer 1

Try "%g"

#include <stdio.h>

int main() {

float num1 = 1.39000;
printf("%g", num1);

return 0;
}