In Javascript i solved this issue (after two years) by using:
****
function round(number) {
return parseFloat(number.toPrecision(12));
}
****
The "toPrecision(12)" rounds to 12 significant digits which is well within
acceptable tolerances for my practical application:
http://www.quickconvert.net/index.html
http://www.quickconvert.net/javascript/calculate.js
It does however leave trailing zeros below the decimal point. I
found "parseFloat()" stripped those nicely.
Is there a PHP equivalent way to tidy double float math? I intend to offer a
real form alternative to those not using Javascript on this site.
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