Casio Calculator fx-991MS


Size of case / Total weight

Dimensions (D × W × H) : 153.5×126.5×29.8mm
Weight : 145g

  • Number of Functions : 401 & Fraction calculations
  • Combination and permutation
  • Statistics (STAT-data editor, Standard deviation, Regression analysis)
  • 9 variable memories
  • Comes with slide-on hard case
  • Equation calculations
  • Integration/differential calculations
  • Base-n calculations/conversions
  • Complex number calculations
    Matrix calculations
    Vector calculations
    40 scientific constants
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Shipping & Delivery

Orders are packed and shipped within 2 business days from the order date. Orders placed on weekends and select holidays are processed on the next business day. If we are unable to process your order due to inaccurate or incomplete payment information, your order processing may be delayed an additional 2 business days. Orders with out of stock item(s), may take an additional 7 business days to process and ship.