Cual es la razon para invertir 35 dolares en tu fx-991es, si la calculadora fx-991ex vale apenas 20 dolares y tiene 135 funciones mas ?

Me gustó más su diseño, la utilizo como calculadora de bolsillo no programable únicamente , (utilizo una programable para ingeniería). el precio estaba en oferta cuando la compré, me costó casi lo mismo y me gustó más.

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

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Casio FX-991ES Plus-2nd Edition Scientific Calculator

Casio FX-991ES Plus-2nd Edition Scientific Calculator

Product ID: 238594604

Details

Brand
Casio
Calculator Type
Graphing
Color
Black
Power Source
Battery
Screen Size
4 Inches

📐Natural Textbook Display

🔋Dual solar & battery power

🔢417 functions packed

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€ 59.32

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔢 Elevate your calculations with precision and style—don’t get left behind!

ALWAYS READY - Dual power system with solar and battery ensures uninterrupted performance wherever you work.
READ WITH EASE - Natural Textbook Display mimics textbook format for intuitive, error-free input and review.
PORTABLE PRECISION - Lightweight (95g) with a durable slide-on hard case—engineered for professionals on the move.
STYLISH PRACTICAL - Sleek, color-coded keypad design ensures quick access and reduces input mistakes.
MASTER EVERY CALCULATION - 417 advanced functions including calculus, statistics, and complex numbers to power through any problem.

The Casio FX-991ES Plus 2nd Edition is a non-programmable scientific calculator featuring 417 functions, including advanced calculus, statistics, and complex number calculations. It boasts a Natural Textbook Display for easy reading, a color-coded keypad for efficient use, and dual solar and battery power for reliability. Compact and lightweight at 95g, it comes with a protective slide-on hard case, making it the ideal tool for professionals and students seeking accuracy and convenience.

Specifications

ASIN	B0846D5CBP
Brand	Casio
Calculator Type	Engineering/Scientific, Graphing
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (14,820)
Display Type	LCD
Enclosure Material	Metal or Durable Plastic
Global Trade Identification Number	04549526608773
Item Dimensions L x W	6.38"L x 3.03"W
Item Weight	95 Grams
Manufacturer	CASIO
Mfr Part Number	C79
Model Name	fx-991ES PLUS 2nd edition
Model Number	FX-991ES PLUS 2ND EDITION
Number of Batteries	1 LR44 batteries required. (included)
Power Source	Battery Powered
Screen Size	4 Inches

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Good experience, but the tracking updates could be better.

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