Enables control of floating-point significand precision.
Arguments
Default
-pc80 | On Linux* and OS X* systems, the floating-point significand is rounded to 64 bits. On Windows* systems, the floating-point significand is rounded to 53 bits. |
Description
This option enables control of floating-point significand precision.
Some floating-point algorithms are sensitive to the accuracy of the significand, or fractional part of the floating-point value. For example, iterative operations like division and finding the square root can run faster if you lower the precision with the this option.
Note that a change of the default precision control or rounding mode, for example, by using the [Q]pc32 option or by user intervention, may affect the results returned by some of the mathematical functions.