Rounding In Python

round(1.4 999 999 999 999 999) (without the spaces) gets rounded to 2 but round(1.4 99 999 999 999 999) (without the spaces) gets rounded to 1. I suppose this has to do with impre

Solution 1:

Because 1.4 999 999 999 999 999 when parsed is exactly 1.5, the difference between them is too small to represent at that magnitude.

But 1.4 99 999 999 999 999 is low enough to parse to "less than 1.5", actually 1.4999999999999988897769753748434595763683319091796875, which is clearly less than 1.5