Node: Log Intrinsic, Next: Log10 Intrinsic, Previous: Loc Intrinsic, Up: Table of Intrinsic Functions
Log(X)
Log: REAL or COMPLEX function, the exact type being that of argument X.
X: REAL or COMPLEX; scalar; INTENT(IN).
Intrinsic groups: (standard FORTRAN 77).
Description:
Returns the natural logarithm of X, which must
be greater than zero or, if type COMPLEX, must not
be zero.
See Exp Intrinsic, for the inverse of this function.
See Log10 Intrinsic, for the `common' (base-10) logarithm function.