C Programming Tutorial
C Programming allows us to perform mathematical operations through the functions defined in
C Math Functions
In the C Programming Language, the ldexp function combines a fraction and an exponent into a floating-point value.
Syntax
The syntax for the ldexp function in the C Language is:
double ldexp(double fraction, int exp);
Parameters or Arguments
fraction
The fractional part of the value.
exp
The exponent part of the value.
Returns
The ldexp function returns a floating-point value combining a fraction and an exponent based on the equation: fraction x 2 exponent
Required Header
In the C Language, the required header for the ldexp function is:
#include <math.h>
Applies To
In the C Language, the ldexp function can be used in the following versions:
- ANSI/ISO 9899-1990
ldexp Example
/* Example using ldexp by c programming */
#include <stdio.h>
#include <math.h>
int main(int argc, const char * argv[])
{
/* Define temporary variables */
double value;
int e;
double result;
/* Assign the value and exponential we will use to find the ldexp */
value = 1.5;
e = 2;
/* Calculate the ldexp of the value and the exponential */
result = ldexp(value, e);
/* Display the result of the calculation */
printf("The ldexp of %f with exponential %d is %f\n", value, e, result);
return 0;
}
When compiled and run, this application will output:
The ldexp of 1.500000 with exponential 2 is 6.000000
