The LOG() function returns the natural logarithm (log to the base of e) of the argument.

DECLARE FUNCTION LOG AS FLOAT (num AS FLOAT) SHARED STATIC INLINE

PRINT LOG(1.0) : REM outputs a number very close to zero
PRINT LOG(10.0) : REM outputs 2.30259
PRINT LOG(100.0) / LOG(10.0) : REM outputs 2

• EXP
• POW