stereopsis: know your FPU
I've been using x86 floating-point for a while, and this article should explain some of the . New: Linux/gcc-compatible code for these functions. . The increase in precision from one to the next is better than it appears: 32-bit floats only . typedef double lreal; typedef float real; typedef unsigned long uint32; typedef long int32; .
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Numbers - IBM DB2 9.7 for Linux, UNIX, and Windows
Decimal floating-point numbers can have a precision of 16 or 34. Decimal floating-point supports both exact representations of real numbers and approximation .
An Introduction to GCC - Floating-point issues
In this mode the results of each extended-precision floating-point operation are . On x86 GNU/Linux systems the default mode is extended precision (with the .
linux - How to use Floating Point extended precision in a MacOs or ...
Oct 6, 2011 . Ultimately, you must keep in mind that floating-point arithmetic is not real arithmetic. The fact that the result obtained on Linux is closer to the .
Resolution of Differences Between X86 Linux/glibc Floating-Point to ...
Resolution of Differences Between X86 Linux/glibc Floating-Point to Integer . the floating point processor is operated by default in extended precision mode. . the correct result, i.e., the number with the smallest error from the real result.
The following factors affect whether FAS or FAE will occur and how severe the condition may be:
Floating Point Math in Bash | Linux Journal
Jul 30, 2008 . The obvious candidate for adding floating point capabilities to bash is bc. bc is, to quote the man page: An arbitrary precision calculator language . Next time around I'll show you one place you can put this to real world use.
Data Representation Overview
The size is controlled by the -integer-size (Linux* OS and Mac OS* X) or . Single -precision real floating-point values in IEEE S_floating format ranging from .
PGI | Support | FAQ
How come we get different answers on one platform versus a linux x86 platform? . I declared all my variables as 'REAL*8', yet I get different answers with '-r8' set. . To reduce the precision, the option '-pc 64' (round floating point operations .
gfortran(1): GNU Fortran compiler - Linux man page
If -fdefault-real-8 is given, "DOUBLE PRECISION" would instead be promoted . are likely to trigger floating point exceptions when "ffpe-trap=precision" is used.
Primitive data type - Wikipedia, the free encyclopedia
32 bits, Double Word, long int (win32, win64, 32-bit Linux), ?2147483648 to + . Because floating-point numbers have limited precision, only a subset of real or .
GNU Linux and the Extended Precision on x86 Processors
Dec 30, 2010 . The file /usr/include/fpu_control.h under Linux/x86 says: . For instance, let us consider the two floating-point double-precision numbers x . the GCC bug 323 and the duplicates (which are in fact not always real duplicates, .
FFTW - Installation and Customization
This will build the uniprocessor complex and real transform libraries along with the test programs. . --enable-float Produces a single-precision version of FFTW ( float ) instead of the . all installed libraries and header files to indicate the floating-point precision. . Specifically, we have tested these hacks on Linux with gcc 2.
Deterministic cross-platform floating point arithmetics
This document currently only deals with floating point precision. . I could get somebody to test some things on Linux on a Nokia N810 (ARM) but that does not .
How LabVIEW Stores Data in Memory - LabVIEW 8.5 Help
(Windows, Linux, and Mac Intel) Extended-precision floating-point numbers have an . Complex single-precision floating-point numbers consist of real and .
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