Casio fx-991MS 2nd Gen Scientific Calculator

Casio fx-991MS 2nd Gen non-programmable scientific calculator with 401 functions and a 2-line display.

• All fx-82MS/85MS/350MS functions, plus equation calculations, integration/differential calculations, base-n, complex number, matrix and vector calculations, and 40 scientific constants
• Fraction calculations, combination and permutation
• Statistics (STAT-data editor, standard deviation, regression analysis)
• 9 variable memories
• Comes with slide-on hard case

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