CASIO Scientific Calculator Plus 2 FX-991ES

Features Natural Textbook Display format for displaying equations and calculation result just as they appear in textbooks.
Two-way Power: Solar / Battery
No.
of Function: 417
Main Functions:
• Fraction calculations
• Combination and permutation
• Statistics (List-based STAT data editor, standard deviation, regression analysis)
• 9 variables
• Table function
• Comes with new slide-on hard case
• Equation calculations
• Integration/differential calculations
• Matrix calculations
• Vector calculations
• Complex number calculations
• CALC function
• SOLVE function
• Base-n calculation