log
Syntax: log(real1)
Argument:
- real1 is a number.
Return Type: Real
Description:
Returns the natural logarithm of a positive number using a base of
e (2.718282). If
real1 is zero or a negative number, the following results occur:
- When real1 is zero, the function returns -Infinity.
- When real1 is negative, the function returns NaN (Not a Number).
Example:
log(2.718282) = 1