Casio ClassWiz FX-991EX Engineering/Scientific Calculator, Black (Latest Model released August 2015)
The New Classroom Standard With High-resolution LCD Technology
A new high-performance scientific that has higher resolution to increase the amount of information to be displayed and super-fast calculations for high-stakes testing or for performing the most advanced mathematics.
It’s new high resolution LCD screen allows for more information for applications like Spread-sheets and 4X4 matrix calculations. This calculator has a comprehensive set of advanced calculations for integration & differential calculations, along with vector and inequality calculations. For the middle and high school grades, basic spreadsheet functionality has been incorporated, ratio and statistical functionality, down to ratio calculation and prime factorization.