Floating point is so annoying

[ten_6044]

See this website on why 0.1 + 0.2 is 0.30000000000000004: 0.30000000000000004.com

Also, see this:

I got the wrong answer to a computation involving decimals!

TL;DR: It's nothing to do with Snap!; it's a question of how computers represent non-integers, and will likely give exactly the same answer in any programming language. Concise answer for mathematicians: There are uncountably many real numbers, even in a finite range, and only countably many possible bit patterns in a computer. Long answer: Long strings of 9s are the tip of the iceberg: [Sans titre script pic] [Sans titre script pic (1)] Note that that second example is off by three in t…