Most of the routines in the IMSL MATH/LIBRARY (except the line printer routines and special utility routines) do not print any of the results. The output is returned in Fortran variables, and you can print these yourself. See Chapter 11, “Utilities,” for detailed descriptions of these routines.

A commonly used routine in the examples is the IMSL routine UMACH (see the Reference Material), which retrieves the Fortran device unit number for printing the results. Because this routine obtains device unit numbers, it can be used to redirect the input or output. The section on “Machine-Dependent Constants” in the Reference Material contains a description of the routine UMACH.

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