Advantage of 991ES calculator in 3rd Sem, BE

Casio 991ES Natural Display calculator is the coolest calculators available! A chapter by name "Numerical Analysis" in Engg. Mathematics III is full of numerical calculations and those calculations are simplified by using this cool calculator. My favorite buttons are "CALC", "Solve for X", "Differentiation" and "Integration". If you want to know more, contact me me@sattvik.net.

Here's the snap of the calsy