Casio Scientific Calculator - FX991

·401 Functions
·2-Line Display
·10+2 Digits
·Multi-replay function
·Matrix calculations
·Equation calculations
·Vector calculations
·Differential calculations
·SOLVE function
·2-line display
·Fraction calculations
·Integration calculations
·Combination and Permutation
·Statistics
·Base-n calculations
·Logical operations
·Complex number calculations
·CALC memory
·Engineering symbol calculations
·40 scientific calculations
·40 metric conversions(20 conversion pairs)
·9 variable memories
·Comes with slide-on hard case