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One of the following Math libraries must be used if any of the modules of
your application were compiled with the Watcom C/C++ "fpc" option and your
application requires floating-point support for the reasons given above.
 The following Math libraries include support for floating-point which is
done out-of-line through run-time calls.

16-bit libraries:


     MATHS.LIB (small model)
     MATHM.LIB (medium model)
     MATHC.LIB (compact model)
     MATHL.LIB (large model)
     MATHH.LIB (huge model)
     WIN\MATHC.LIB (Windows dependent)
     WIN\MATHL.LIB (Windows dependent)

32-bit libraries:


     MATH3R.LIB (flat/small models, "3r", "4r" or "5r" option)
     MATH3S.LIB (flat/small models, "3s", "4s" or "5s" option)

Applications which are linked with one of these libraries do not require a
numeric data processor for floating-point operations.  If one is present in
the system, it will be used; otherwise floating-point operations are
simulated in software.  The numeric data processor will not be used if the
environment variable NO87 has been set (this variable is described below).