C      ALGORITHM 737, COLLECTED ALGORITHMS FROM ACM.
C      THIS WORK PUBLISHED IN TRANSACTIONS ON MATHEMATICAL SOFTWARE,
C      VOL. 20, NO. 4, DECEMBER, 1994, P. 447-459.

This package consists of 5 files

1) D1I1MACH.F which contains the routines D1MACH and I1MACH from the 
   SLATEC package.

2) BASICOPS.F which contains the routines for interval inclusions for
   the elementary arithmetic operations.  These are ADD, CANCEL, IDIV,
   MULT, RNDOUT, SCLADD, SCLMLT and SUB.  Documentation for these 
   routines appears in their prologues.

3) UTILFUNS.F which contains basic utility functions for operations
   such as intersection of intervals, checking inclusion of one interval
   in another, and so on.  The routines are ICAP, IDISJ, IHULL, IILEI,
   IILTI, IINF, IMID, IMIG, INEG, INTABS, IRLEI, IRLTI, ISUP, IVL1, IVL2
   and IWID.
   
4) ELEMFUNS.F which contains routines for the elementary functions.
   The routines are IACOS, IACOT, IASIN, IATAN, ICOS, IEXP, IIPOWR, 
   ILOG, ISIN, ISINH, ISQRT, AND POWER.

5) MISCMACH.F which contains the routine ERRTST, used to print
   information about error conditions.  It also contains the routine
   SIMINI, in which global variables specifying interval inclusions for
   mathematical constants are set.  Some assumptions on the arithmetic 
   are given in the prologue to SIMINI.

