c++ Programming Glossary: rounds

http://stackoverflow.com/questions/13940316/floating-point-comparison-revisited

your significand has 149 bits the subtraction result rounds to 1 which is less than or equal to 1 limits epsilon ULP. Yet..

Casting between primitive type pointers

http://stackoverflow.com/questions/14773127/casting-between-primitive-type-pointers

machine for example where converting a char to an int rounds up. Then converting back would result in a char which was sizeof..

rint not present in Visual Studio 2010 math.h and equivalent of CUDA rint

http://stackoverflow.com/questions/14919512/rint-not-present-in-visual-studio-2010-math-h-and-equivalent-of-cuda-rint

by myself. According to this link the CUDA rint function rounds x to the nearest integer value in floating point format with.. For rint the standard specifies that the function rounds according to the current rounding mode which defaults to round..

C++ Matrix Class

http://stackoverflow.com/questions/2076624/c-matrix-class

advantages It does not allocate extra space. A vector rounds up to the nearest power of two when allocating so you can resize..

Floating point inaccuracies

http://stackoverflow.com/questions/4575643/floating-point-inaccuracies

Your sample output only looks wrong because of how ostream rounds by default. You can set precision to get some other output...

performance of unsigned vs signed integers

http://stackoverflow.com/questions/4712315/performance-of-unsigned-vs-signed-integers

requires more machine instructions because division rounds towards zero but shifting to the right rounds down . Example.. division rounds towards zero but shifting to the right rounds down . Example int foo int x unsigned y x 8 y 8 return x y Here..

Where is Round() in C++? [duplicate]

http://stackoverflow.com/questions/554204/where-is-round-in-c

with older standards you may use std floor which always rounds to the lower number and std ceil which always rounds to the.. rounds to the lower number and std ceil which always rounds to the higher number. To get the normal rounding behaviour you..

C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly

http://stackoverflow.com/questions/588307/c-obtaining-milliseconds-time-on-linux-clock-doesnt-seem-to-work-properl

in milliseconds but on this Linux box I'm working on it rounds it to the nearest 1000 so the precision is only to the second..

How computer does floating point arithmetic?

http://stackoverflow.com/questions/6033184/how-computer-does-floating-point-arithmetic

part of the fraction is more than 0.5 scaled and so it rounds up. The intermediate rounded values allow the FPU to carry the..

What breaking changes are introduced in C++11?

http://stackoverflow.com/questions/6399615/what-breaking-changes-are-introduced-in-c11

long long. Valid C 2003 code that uses integer division rounds the result toward 0 or toward negative infinity whereas C 0x.. toward 0 or toward negative infinity whereas C 0x always rounds the result toward 0. admittedly not really a compatibility problem..

How does Excel successfully Rounds Floating numbers even though they are imprecise?

http://stackoverflow.com/questions/6930786/how-does-excel-successfully-rounds-floating-numbers-even-though-they-are-impreci

to the certain decimal places. For example Round x y rounds x to the multiple of y. So Round 37.785 0.01 should give you.. 37.785 so it should round to 37.78 not 37.79. Yet Excel rounds it up. Why The reason has to do with how real numbers are represented.. representation as does the inexact 37785 1000. That Excel rounds this exact value up rather than down is the key to determining..

Rounding doubles - .5 - sprintf

http://stackoverflow.com/questions/994764/rounding-doubles-5-sprintf

temp .2f coef i coef i returns a double It successfully rounds 6.666 to 6.67 but it doesn't work properly when rounding 5.555...