PCD
ldexp( )
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example
Files:
Also See:
log( )
Syntax:
result= ldexp ( value , exp );
value is float
exp is a signed int.
result is a float with value result times 2 raised to power exp.
The ldexp function multiplies a floating-point number by an integral power of
2.
All devices.
#INCLUDE <math.h>
float result;
result=ldexp(.5,0);
// result is .5
None
frexp(), exp(), log(), log10(), modf()
result = log ( value )
Parameters: value is a float
Returns:
Function:
Availability:
202
A float
Computes the natural logarithm of the float x. If the argument is less than or equal
to zero or too large, the behavior is undefined.
Note on error handling:
"errno.h" is included then the domain and range errors are stored in the errno
variable. The user can check the errno to see if an error has occurred and print
the error using the perror function.
Domain error occurs in the following cases:
? log: when the argument is negative
All devices
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