*DECK PIMACH
      FUNCTION PIMACH (DUM)
C***BEGIN PROLOGUE  PIMACH
C***SUBSIDIARY
C***PURPOSE  Subsidiary to HSTCSP, HSTSSP and HWSCSP
C***LIBRARY   SLATEC
C***TYPE      SINGLE PRECISION (PIMACH-S)
C***AUTHOR  (UNKNOWN)
C***DESCRIPTION
C
C     This subprogram supplies the value of the constant PI correct to
C     machine precision where
C
C     PI=3.1415926535897932384626433832795028841971693993751058209749446
C
C***SEE ALSO  HSTCSP, HSTSSP, HWSCSP
C***ROUTINES CALLED  (NONE)
C***REVISION HISTORY  (YYMMDD)
C   801001  DATE WRITTEN
C   891214  Prologue converted to Version 4.0 format.  (BAB)
C   900402  Added TYPE section.  (WRB)
C***END PROLOGUE  PIMACH
C
C***FIRST EXECUTABLE STATEMENT  PIMACH
      PIMACH = 3.14159265358979
      RETURN
      END