Casio FX-991ES PLUS, Scientific Calculator

The FX991ES is the new kid on the block and is shaking up the maths world.
With 403 functions and the revolutionary natural textbook display you are able to enter expressions as seen in your text books.
With advanced mathematical functionality, the FX-991 ES is ideal for both students and professionals.
It is operated by solar power and an auxiliary battery and comes with hard slide on case.

Features:

• Two way power
• 417 Functions
• Full Dot Display
• Plastic Keys
• Integration / Differential
• Equation calculation
• Matrix calculations / Vector calculations
• Complex number calculation
• CALC function / SOLVE function
• Base-n calculation
• Fraction calculation
• Combination and Permutation
• Logarithm log
• List-based STAT data editor
• Standard deviation
• Paired-variable statistics regression analysis
• Logical operations
• Table function
• 40 scientific constants
• 40 metric conversions (20 conversion pairs)
• 9 variable memories
• Comes with new slide on hard case