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Built-in Functions
Requires:
Examples:
Example
Files:
Also See:
log10( )
Syntax:
#INCLUDE <math.h>
lnx = log(x);
None
log10(), exp(), pow()
result = log10 ( value )
Parameters: value is a float
Returns:
Function:
Availability:
Requires:
Examples:
Example
Files:
Also See:
A float
Computes the base-ten 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:
If "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:
? log10: when the argument is negative
All devices
#INCLUDE <math.h>
db = log10( read_adc()*(5.0/255) )*10;
None
log(), exp(), pow()
longjmp( )
Syntax:
longjmp ( env, val )
Parameters: env : The data object that will be restored by this function
val : The value that the function setjmp will return. If val is 0 then the function
203
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