Dividing 1/n always returns 0.0 [duplicate]

Answer 1

1 is an integer, i is an integer. So 1/i will be an integer, ie the result will be truncated. To perform floating-point division, one of the operands shall be of type float (or, better, of type double):

p3 *= 1. / i;

Answer 2

(1/i)

i is an int, so that's integer division, resulting in 0 if i > 1. Use 1.0/i to get floating point division.

Answer 3

I had the same issue. The basic case:

• when you want to get float output from two integers, you need to convert one into float

  int c = 15; int b = 8; printf("result is float %f\n", c / (float) b); // result is float 1.875000 printf("result is float %f\n", (float) c / b); // result is float 1.875000