


      LOG(3F)                     (UNIX 5.0)                    LOG(3F)



      NAME
           log, alog, dlog, clog - Fortran natural logarithm intrinsic
           function

      SYNTAX
           real r1, r2
           double precision dp1, dp2
           complex cx1, cx2

           r2 = alog(r1)
           r2 = log(r1)

           dp2 = dlog(dp1)
           dp2 = log(dp1)

           cx2 = clog(cx1)
           cx2 = log(cx1)

      DESCRIPTION
           Log return the natural logarithm of its argument, in the
           same type as the argument.

           Alog returns the real natural logarithm of its real
           argument.

           Dlog returns the double-precision natural logarithm of its
           double-precision argument.

           Clog returns the complex logarithm of its complex argument.

           Log works for different types, but the various forms are for
           programming clarity.

      SEE ALSO
           exp(3M).




















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