# ali.f

          FUNCTION ALI (X)
    C***BEGIN PROLOGUE  ALI
    C***PURPOSE  Compute the logarithmic integral.
    C***LIBRARY   SLATEC (FNLIB)
    C***CATEGORY  C5
    C***TYPE      SINGLE PRECISION (ALI-S, DLI-D)
    C***KEYWORDS  FNLIB, LOGARITHMIC INTEGRAL, SPECIAL FUNCTIONS
    C***AUTHOR  Fullerton, W., (LANL)
    C***DESCRIPTION
    C
    C ALI(X) computes the logarithmic integral; i.e., the
    C integral from 0.0 to X of (1.0/ln(t))dt.
    C
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  EI, XERMSG
    C***REVISION HISTORY  (YYMMDD)
    C   770601  DATE WRITTEN
    C   890531  Changed all specific intrinsics to generic.  (WRB)
    C   890531  REVISION DATE from Version 3.2
    C   891214  Prologue converted to Version 4.0 format.  (BAB)
    C   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
    C   900326  Removed duplicate information from DESCRIPTION section.
    C           (WRB)
    C***END PROLOGUE  ALI