Addition simply returning one value passed to function

[xscheiner]

I started using this lib to help with some floating point issues I was having on a currency conversion function. It's been reliable for some time but today, using on a different project, I got a problem with a simple addition operation. I first saw in the browser and have reproduced in node as in the screen grab below:

[xscheiner]

Up to this point, it works fine: sm.add(10000, 0.0454686265732363). As soon as I add one more number at the end of the decimal, I get the error unless that number is 0. These numbers are coming from distance calculations between latlng points on a map which is why I sometimes get long decimals like that. I will round these for the moment since anything less than 100 (metres) is not meaningful for my purposes, but I thought the bug would be interesting to you