LOG(X)

Purpose

Natural logarithm.

Class

Elemental function

Argument Type and Attributes

X
must be of type real or complex.

Result Type and Attributes

Same as X.

Result Value

Examples

LOG (10.0) has the value 2.3025851 (approximately).


Specific Name Argument Type Result Type Pass As Arg?
ALOG default real default real yes
DLOG double precision real double precision real yes
QLOG REAL(16) REAL(16) yes (1)
CLOG default complex default complex yes
CDLOG double complex double complex yes (1)
ZLOG double complex double complex yes (1)
CQLOG COMPLEX(16) COMPLEX(16) yes (1)

Notes:

  1. IBM Extension: the ability to pass the name as an argument.
IBM Copyright 2003