This is my first scientific calculator, how hard is it to learn?

Most scientific calculators share the same underlying logic. Once you understand the core concepts, switching between models is easy — the icon-menu layout here makes that transition even smoother.

I need this to last through several years of school. Is it durable?

Yes. The casing and keys are built to hold up to daily use — tossed in a backpack, pulled out between classes, used every day for years.

Can it handle statistics and table-based problems, not just basic arithmetic?

Yes. It includes dedicated statistics and table modes for regression, data analysis and function tables, on top of standard scientific calculations.

How long does the battery last, and what if I run low mid-exam?

It runs on dual power — as long as there's reasonable light it keeps working even if the battery is low.

Is this calculator suitable for exam prep?

It's built to support the full range of practice you'll do while preparing. As with any calculator, permitted equipment varies by exam board, so check your specific exam's guidelines as part of your prep.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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CATIGA Pink Scientific Calculator with Textbook-Style HD Display, Solar & Battery Scientific Calculators for College, High School & Engineering Students, Icon Menu & Magnetic Hard Case, CS-991NX

Product ID: 644448999

Details

Brand
CATIGA
Calculator Type
Color
CS Blossom
Power Source
Solar and
Screen Size
10.2

📺32% larger high-res display

🔋Dual solar & battery power

🔢552 advanced functions

R1080

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

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Description

🔬 Elevate your math game with precision and speed — don’t get left behind!

SEE MORE SOLVE FASTER - Large, crystal-clear screen displays detailed equations and spreadsheets simultaneously.
TEXTBOOK STYLE DISPLAY - Formulas and expressions appear exactly as in textbooks, boosting accuracy and confidence.
ALWAYS ON ALWAYS READY - Dual solar and battery power ensures zero downtime during critical problem-solving.
BUILT TO LAST SUPPORT YOU - Durable design backed by a 365-day warranty and responsive 24-hour customer care.
MASTER COMPLEX CALCULATIONS - 552 functions covering calculus, matrices, stats & more for every STEM challenge.

The CATIGA SS-991EX is a high-performance scientific calculator featuring 552 advanced functions including calculus, matrix, and statistical operations. It boasts a 32% larger high-resolution LCD that displays textbook-style formulas for enhanced clarity. Powered by both solar and battery sources, it guarantees uninterrupted use. Designed for durability and backed by a 1-year warranty, it’s ideal for high school, college, and professional STEM users seeking speed, accuracy, and reliability.

Specifications

ASIN	B0H75W3B2W
Best Sellers Rank	#12,026 in Office Products ( See Top 100 in Office Products ) #16 in Scientific Calculators
Brand	CATIGA
Calculator Type	Engineering/Scientific
Color	CS Blossom Pink
Customer Reviews	4.5 4.5 out of 5 stars (1,157)
Display Type	LCD
Item Dimensions L x W	6.5"L x 3.25"W
Manufacturer	CATIGA
Mfr Part Number	991NX
Model Name	CS-991NX
Model Number	CS-991NX
Number of Batteries	1 Nonstandard Battery batteries required.
Number of Items	1
Power Source	Solar and Battery Powered
Screen Size	10.2 centimeters
UPC	810185461721
Unit Count	1 Count
Warranty Description	1-Year Limited Manufacturer’s Warranty

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R1080

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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3 weeks ago

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