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Casio fx-991ES PLUS (Natural V.P.A.M.)

The Casio fx-991ES PLUS is a scientific calculator with 8 digits precision and formula input logic. It has 403 functions, 50 keys, and an LCD (liquid crystal) display. The power source is Solar. The calculator was manufactured in China. Note: Functionally the same as fx-570ES with solar power

Facts at a glance:

FeatureValue
TypeScientific
Functions403
Keys50
Precision8
LogicFormula
Display typeLCD
Length161mm
Width80mm
Thickness12mm
Weight105g
Power SourceSolar
CountryChina
Year introduced2007

User Manual

You can download the Casio fx-991ES PLUS manual from this external link.

Replacements:

If you have a Casio fx-991ES PLUS that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Casio