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Revision as of 04:48, 13 April 2010 by Chris Burke
log (log function)
The log function computes the natural logarithm of its argument. The result is type float. Null is returned if the argument is negative, and negative infinity if the argument is 0.
q)log 1 0f q)log 0.5 -0.6931472 q)log exp 42 42f q)log -2 0n 0 0.1 1 42 0n 0n -0w -2.302585 0 3.73767
For a complete list of functions, see the kdb+ Function Reference.