XploRe Help : log

Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Group:	Mathematical Functions
Topic:	Exponential and Logarithmic Functions
See also:	exp expm1 log10 log1p

Function:		log
Description:		log returns the natural logarithm of the elements of an array.

Note:

if this function is applied to negative values it will return -Inf.

Example:

log(exp((1:5)'))

Result:

Contents of log

[1,]     1     2     3     4     5