Basic & Scientific calculators are an integral part of every engineering student's life. There are several calculator brand available in the market and choosing the one that fits your needs is sometimes a tough challenge. I remember CASIO was one of the most popular brands when I was in college. However, there are several other options in the market and this thread aims to compile all the reviews & feedback about various calculator models. Your your own review of calculator model you've been using and whether you'd recommend using it to others.