Casio Orignal Plus 2nd Edition Scientific Calculator - OG-FX991

The Natural Display (Natural-V.P.A.M.) shows mathematical expressions like roots and fractions as they appear in your textbook, and this increases comprehension because results are easier to understand.

Features

• Natural-V.P.A.M.
• Dot matrix display
• 15 and 10+2 digits
• 417 functions
• Equation solver
• 20 pairs of values for metric conversion
• Calculation with complex numbers
• Calk key (temporary formula memory)
• 40 physical constants
• Matrix/vector calculation
• Numerical integral & differential calculus
• Random Integers
• New equation Mode
• Function table
• Two-Way-Power