Function with no Arguments with Return value in C - C Programming Tutorial 107

Function with no Arguments with Return value in C - C Programming Tutorial 107
- How to create a function; which does not accept any parameters but returns a value

Example Code:
#include <stdio.h>
float PI();
float E();
int main()
{
printf("%.3f\n",PI()); // 3.142
printf("%.3f\n",E()); // 2.718

return 0;
}
float PI()
{
return 3.142;
}
float E()
{
return 2.718;
}

Note:
- replace < with less-than symbol.
- replace > with greater-than symbol.

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Once you watch the video; answer the following questions:
1. What is the value of mathematical constant PI ?
2. What is the value of mathematical constant E ?