Why can't I get big number libraries for javascript to work?
javascript, math
Solution
When you say this
Big(9007199254740995)
you are not giving the bignum library a chance! Your numeric literal is first parsed by pure JS, in which that number isn't exactly representable. You can see this simply with
window.alert(9007199254740995);
which alerts `9007199254740996`.
In order to let your chosen bignum library successfully represent this number, you will need to pass it as a string, for example:
Big('9007199254740995')
should get you this exact number, as a bignum.
Problem
Looking for a library to work with large numbers on javascript (bigger than 2^53) I checked a couple of questions (JavaScript large number library? and Is there a bignum library for JavaScript?) and then tinkered a little bit with javascript-bignum.js and big.js, but the thing is that with I am unable to represent odd numbers, since both ``` Big(9007199254740995); ``` and ``` SchemeNumber.fn["string->number"](9007199254740995); ``` return ``` 9007199254740996 ``` rather than ``` 9007199254740995 ``` as I would expect. So, is it that I am doing something wrong? Or there's no way to represent large odd numbers?