7.4 Floating-point numbers

7.4.2 Floating-point precision

The functionround-to-single-precision rounds a 64-bit number down to the precision of a 32-bit format; the number is stored and prints in 64-bit format. This function is used to emulate the rounding characteristics of a 32-bit floating-point format.

The Advanced User's Guide - 9 SEP 1996

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