¡@
php Programming Glossary: precisionCan I rely on PHP php.ini precision workaround for floating point issue http://stackoverflow.com/questions/14587290/can-i-rely-on-php-php-ini-precision-workaround-for-floating-point-issue I rely on PHP php.ini precision workaround for floating point issue I've found some workaround.. for floating point problem in PHP php.ini setting precision 14 342349.23 341765.07 584.15999999992 floating point problem.. floating point problem php.ini setting let's say precision 8 342349.23 341765.07 584.16 voila Demo http codepad.org r7o086sS..
Formulas to Calculate Geo Proximity http://stackoverflow.com/questions/2096385/formulas-to-calculate-geo-proximity be almost twice as fast as the Haversine Formula and the precision difference is neglectfulness for most usage cases. Here are.. give identical results assuming a machine with infinite precision. The Haversine formula is more robust to floating point errors... point errors. However today's machines have double precision of the order of 15 significant figures and the law of cosines..
Working with large numbers in PHP http://stackoverflow.com/questions/211345/working-with-large-numbers-in-php standard libraries in PHP handling the arbitrary length precision numbers BC Math and GMP . I personally prefer GMP as it's fresher..
Format bytes to kilobytes, megabytes, gigabytes http://stackoverflow.com/questions/2510434/format-bytes-to-kilobytes-megabytes-gigabytes share improve this question function formatBytes bytes precision 2 units array 'B' 'KB' 'MB' 'GB' 'TB' bytes max bytes 0 pow.. bytes pow 1024 pow bytes 1 10 pow return round bytes precision . ' ' . units pow Taken from php.net there are many other examples..
http://stackoverflow.com/questions/3726721/php-math-precision doesn't PHP return the expected 0.01 php floating point precision floating accuracy share improve this question Because floating.. arithmetic. An illustration of the difference due to imprecision is for some floats a and b a b b a . This applies to any language.. . Since floating point are binary numbers with finite precision there's a finite amount of representable numbers which leads..
The accuracy of PHP float calculate http://stackoverflow.com/questions/3957705/the-accuracy-of-php-float-calculate as all floating point datatypes are because you may lose precision when converting to and from binary. This is why you shouldn't.. use floating point arithmetic when you need high exact precision. In PHP check out BC Math or the GMP library. The latter will..
How to generate random 64-bit value as decimal string http://stackoverflow.com/questions/5301034/how-to-generate-random-64-bit-value-as-decimal-string achieve this with php Thanks php random oauth arbitrary precision share improve this question You could use two 32 bit numbers..
Compiling an AST back to source code http://stackoverflow.com/questions/5832412/compiling-an-ast-back-to-source-code Printing floating point numbers without losing any precision is a lot harder than it looks scientists hate it when you damage..
int((0.1+0.7)*10) = 7 in several languages. How to prevent this? http://stackoverflow.com/questions/6439140/int0-10-710-7-in-several-languages-how-to-prevent-this might cause a riddiculous bug I'd better use arbitrary precision functions what other languages do have this bug and those who..
How to calculate the difference between two dates using PHP? http://stackoverflow.com/questions/676824/how-to-calculate-the-difference-between-two-dates-using-php how much time has passed or remains rather than to provide precision if you want to do that just output the date. Despite all that..
|