Casio FX991MSPLUS2 Engineering/Scientific Calculator

Casio FX991MSPLUS2 scientific calculator. 2-Line display scientific calculator. Multi-replay function: backtrack step-by-step through calculations after you perform them. Equation solver, fraction calculations, permutation/combination, stat-data editor, solar Plus with Battery back-up, trigonometric functions, 1 independent Memory. Comes with slide-on hard case.

Scientific calculator with 401 advanced functions. Solar and battery backup
Calculus: integration, differential calculations; vector & matrix
Engineering calculations with different bases; base-n calculations/ conversions DECT., hex., Oct., and binary
40 scientific constants and 40 metric conversions
Two -way power; slide -on hard case