C++

Forum

 
Question about division.

chessman (33)
Hey, I have a little question about division of two numbers.

For example, if a user enter these two numbers : 30 and 40

30/40=0,75

How can I make my programm show the whole decimals and not only the 0 ?

Because this is the kind of result I get :

30/40= 0

How can you change this ? Thank you !
Chervil (7320)
That is integer division. The reason is that 30 and 40 are integer literals. If you want to do a floating-point divide, at least one of the values must be a floating-point type.

Any of these should work:
30.0 / 40.0
30 / 40.0
30.0 / 40


However, if the user enters these values, then the variable which receives the input must be of a suitable type (double or float) instead of int.
Last edited on
Script Coder (1468)
You are dividing ints and so the floating point data is thrown away. Use either floats or doubles.

1
2
3
4
5
6
7
8
 
#include <iostream>

int main() {
	double  num1, num2;
	std::cin>>num1>>num2;
	std::cout<<num1/num2;
	return(0);
}


This should work
giblit (3750)
@chervil
you can also do
30f / 40
30 / 40f
30f / 40f
Topic archived. No new replies allowed.