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.

Casio Fx 991cw Advanced Scientific Calculator

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

€ 55.21

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Description

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

ECO FRIENDLY POWER - Solar powered with battery backup means uninterrupted performance wherever you study or work.
MASTER ADVANCED MATH - 552 functions including numeric integration, differentiation, vectors & inequalities for next-level problem solving.
TRUSTED TOP RANKED - Ranked #41 in Scientific Calculators with 4.7-star reviews—join thousands of pros who rely on Casio.
SEE MORE SOLVE FASTER - High-resolution LCD lets you view complex spreadsheets & 4x4 matrices with ease.
TEXTBOOK PERFECT DISPLAY - Natural textbook format shows equations exactly as in your study materials—no guesswork.

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, vectors, and inequalities, making it ideal for middle school through college-level math and engineering courses. With a natural textbook display and a 1-year warranty, it’s a top-rated, reliable tool for professionals and students aiming to excel.

Specifications

ASIN	B0BSJ33C4R
Best Sellers Rank	#3,816 in Office Products ( See Top 100 in Office Products ) #41 in Scientific Calculators
Brand	Casio
Calculator Type	Engineering/Scientific
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (2,175)
Display Type	LCD
Enclosure Material	Plastic
Item Dimensions L x W	7.7L x 16.2W centimeters
Item Type Name	Casio Advanced Scientific Calculator
Item Weight	3.35 Ounces
Manufacturer	Casio
Mfr Part Number	FX-991EX
Model Name	FX-991CW
Model Number	FX-991CW
Number of Batteries	1 LR44 batteries required. (included)
Number of Items	1
Power Source	Solar Powered
Screen Size	2.25 Inches
UPC	889232615011
Unit Count	1 Count
Warranty Description	1 YEAR

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 55.21

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.