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