I heavily doubt this is the reason. It would fail so many honest users while catching a few cheaters. And the cheaters could easily avoid getting caught by using the correct mode on a decent calculator.
Comment on One of those days
stupidcasey@lemmy.world 2 weeks agoCalculators can make decimal easy and fractions hard when doing it yourself fractions are much easier it’s an anti-cheat of sorts
OddMinus1@sh.itjust.works 2 weeks ago
expr@programming.dev 2 weeks ago
Modern calculators can switch modes between decimal and fractions. It’s pretty irrelevant.
Also, someone may do the problem themselves using any number of means that involve decimals. Or maybe they simply prefer to write in decimal. Either way, the program is simply wrong.