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Top Forums Shell Programming and Scripting Rounding off to the nearest floating number Post 302813911 by in2nix4life on Tuesday 28th of May 2013 10:47:51 AM
Old 05-28-2013
Code:
echo "1.2346" | awk '{printf("%.2f\n", $1)}'
1.23

echo "0.009" | awk '{printf("%.2f\n", $1)}'
0.01

echo "0.001" | awk '{printf("%.2f\n", $1)}'
0.00

 

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fe_dec_getround(3M)													       fe_dec_getround(3M)

NAME
fe_dec_getround() - get decimal floating-point rounding direction mode SYNOPSIS
DESCRIPTION
The function gets the current decimal rounding direction. The default decimal rounding direction mode is round to nearest with half-way cases away from zero These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward. USAGE
To use this function, compile with the option. Make sure your program defines and then includes Specify on the compiler command line or place the call to this function under the effect of an affirmative pragma: If the pragma is placed outside of any top-level declarations in a file, the pragma will apply until another pragma is encountered or until the end of the file is reached. If the pragma is placed at the beginning of a block (compound statement), the pragma will apply until another pragma is encountered or until the end of the block is reached. Link in the math library by specifying or on the linking command line. For more information, see the at the following site: RETURN VALUE
The function returns the value of the decimal rounding direction macro representing the current decimal rounding direction. The return value will match one of the following macros, which are defined in Round to nearest. If the two nearest representable are equally near, the one with its least significant bit zero is delivered. Round to nearest. If the two nearest representable are equally near, the one furthest from zero is delivered. Round upwards (towards +infinity). Round downwards (towards -infinity). Round toward zero. ERRORS
No errors are defined. EXAMPLES
Save, set, and restore the decimal rounding direction. SEE ALSO
fe_dec_setround(3M), fenv(5). STANDARDS CONFORMANCE
This function conforms to ISO/IEC TR 24732, "Extension for the programming language C to support decimal floating-point arithmetic". fe_dec_getround(3M)
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