LOG

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Revision as of 02:16, 17 March 2010 by imported>Aoeu
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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).
  • The natural logarithm of 'a' is defined as the integral from 1 to 'a' of dx/x.
  • 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 AS DOUBLE) STATIC
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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