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Using and Porting GNU Fortran

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8.11.9.170 Log Intrinsic

 
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 section 8.11.9.99 Exp Intrinsic, for the inverse of this function.

See section 8.11.9.171 Log10 Intrinsic, for the `common' (base-10) logarithm function.


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