CASIO fx-991CW

[jonmoore]

I forgot to mention that Calculus functions don't exist on the fx-100AU Plus as these are only encountered when students are older and at that point they are recommended the CG-50 (I believe this model is a universal design across world markets). Plus Calculus is one of those mathematics subjects that not all students are taught. It's only taught to those aged 16 and over in most education boards around the world, and by that point students are filtered to curriculums based upon their abilities.

A key advantage of removing Calculus functions from the fx-100AU is that it's a design which features far less menu diving for functions. This has a tangible advantage in the classroom, where teachers can spend more time on teaching mathematics and less teaching their students how to use their calculators.