Difference between revisions of "LOG"

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* Value parameter MUST be greater than 0!  
 
* Value parameter MUST be greater than 0!  
* The natural logarithm is the logarithm to the base '''e'''. '''e = 2.718282''' approximately.
+
* The natural logarithm is the logarithm to the base '''e = 2.718282''' (approximately).
 
* Returns are default [[SINGLE]] precision unless the value parameter uses [[DOUBLE]] precision.
 
* Returns are default [[SINGLE]] precision unless the value parameter uses [[DOUBLE]] precision.
  

Revision as of 20:00, 16 September 2009

The LOG math function returns the natural logarithm of a specified numerical value.


Syntax: logarithm = LOG(value)


  • Value parameter MUST be greater than 0!
  • The natural logarithm is the logarithm to the base e = 2.718282 (approximately).
  • Returns are default SINGLE precision unless the value parameter uses DOUBLE precision.


Example: FUNCTION to find the base ten logarithm or a numerical value.


FUNCTION Log10(value)
Log10 = LOG(value) / LOG(10#)
END FUNCTION


Explanation: The natural logarithm of the value is divided by the base 10 logarithm. The LOG of ten is designated as a DOUBLE precision return by using # after the 10 value.


See also: EXP


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