Can it handle complex numbers in matrix ?

Yes. .or say within reason. Download the manual from Casio, its free and you dont need to buy calculator.. Look at page 114 and 107. Make sure you download fx-991CW...not fx-991.

¿Este artículo tiene garantía?

Good afternoon, I bought the calculators without a guarantee, but I really don't know if the product has a guarantee, although they should have a guarantee. Regards, AC.

when you turn off the calculator, the calculation history is deleted or not?

The data is deleted when you turn it off. It's the only thing that keeps it from being the perfect scientific calculator for me.

is there a ohms law calculator?

Well any calculator can "do" Ohms law. If ypur worried about remembering it, any programming calculator can store formulas for you...Calculated Industries (yellow calculators) makes 2 Electrical calculators, pretty sure both have Ohms law function key.

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CASIO FX-991CW Advanced Scientific Calculator, Black, S

CASIO FX-991CW Advanced Scientific Calculator, Black, S

Product ID: 556369443

Details

Brand
Casio
Calculator Type
Colour
Black
Display type
LCD
Material
Plastic
Model name
FX-991CW

⚡Super fast calculation speed

📊High-res 2.25" LCD display

🔢552 advanced math functions

€ 57.05

Duties & taxes included

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Description

📐 Elevate your calculations—because precision is the new power move.

ECO FRIENDLY READY - Solar powered with included battery—stay powered up during long study sessions without interruptions.
CRYSTAL CLEAR DISPLAY - View complex spreadsheets & 4x4 matrices with ease on a high-resolution screen.
TEXTBOOK PERFECT INPUT - Natural textbook display shows formulas exactly as in your study materials—no guesswork.
POWER PACKED PERFORMANCE - Execute numeric integration, differentiation, and polynomial solving with lightning speed.
ALL IN ONE MATH COMPANION - 552 functions covering calculus, vectors, inequalities, and more for every academic level.

The CASIO FX-991CW is a solar-powered advanced scientific calculator featuring a 2.25-inch high-resolution LCD that displays complex data like spreadsheets and 4x4 matrices. It supports 552 functions including numeric integration, differentiation, and polynomial solving, making it ideal for middle school through college math courses. Its natural textbook display ensures formulas appear exactly as in textbooks, enhancing clarity and reducing errors.

Specifications

ASIN	B0BSJ33C4R
Best Sellers Rank	75,456 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 116 in Scientific Calculators
Brand	Casio
Brand Name	Casio
Calculator Type	Engineering/Scientific
Colour	Black
Customer Reviews	4.7 out of 5 stars 2,158 Reviews
Display Type	LCD
Enclosure Material	Plastic
Item Dimensions L x W	16.2L x 7.7W centimetres
Item Type Name	Casio Advanced Scientific Calculator
Item Weight	3.35 Ounces
Manufacturer	Casio
Manufacturer Part Number	FX-991EX
Model Name	FX-991CW
Model Number	FX-991CW
Number of Batteries	1 LR44 batteries required. (included)
Number of batteries	1 LR44 batteries required. (included)
Power Source	Solar Powered
Power source	Solar Powered
Screen Size	2.25 Inches
Screen size	2.25 Inches
UPC	889232615011
Unit Count	1.0 count

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