What is the purpose of its "3D light reflecting cover"?

The 3d reflective cover has no other purpose but to protect the calculator. The 3d effect is only a stylish feature in my opinion

does this calculator come with the battery or is that sold sepaately?

Actually the battery came with it.

Can I hold digits in memory for 24 hours?

Hi. Not sure if I understood question correctly; My answer may not be useful. If you intend to keep the calculator powered on for 24 hours, then the data resides in memory without problems. (data does not survive in memory across boots / reboots I think).

Is this a non programmable calculator? can it be taken into exams?

It is non-programmable and my professors in college allowed me to use it.

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Sharp EL-W535TGBBL 16-Digit Scientific Calculator with WriteView, 4 Line Display, Battery and Solar Hybrid Powered LCD Black & Blue

Product ID: 253343261

Details

Brand
Sharp
Calculator Type
Colour
Black and Blue
Power source
Battery Solar
Screen size
3.1 Inches

📊422 advanced functions

🔢16-digit precision

☀️🔋solar & battery hybrid power

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€ 36.75

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Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

HYBRID SOLAR BATTERY POWER - Stay powered up anytime, anywhere—no interruptions during crunch time.
SMART EQUATION EDITING PLAYBACK - Never lose your train of thought—edit and replay calculations effortlessly.
MEMORY THAT WORKS AS HARD AS YOU DO - 8 temporary + 3 definable memories keep your workflow seamless and efficient.
422 FUNCTIONS FOR EVERY STEM CHALLENGE - From algebra to hyperbolic trig, master every calculation with ease.
CRYSTAL CLEAR 4 LINE WRITE VIEW™ DISPLAY - View complex equations exactly as written for flawless problem-solving.

The Sharp EL-W535TGBBL is a professional-grade scientific calculator featuring a 16-digit, 4-line WriteView™ LCD display and 422 advanced functions. Powered by a reliable solar and battery hybrid system, it supports complex STEM calculations with extensive memory options and smart editing capabilities, making it an essential tool for students and professionals alike.

Specifications

ASIN	B06XKLKNX9
Best Sellers Rank	#85,143 in Office Products ( See Top 100 in Office Products ) #196 in Scientific Calculators
Brand	Sharp
Calculator Type	Engineering/Scientific
Color	Black and Blue
Compatible Devices	Computers, Laptops, and Tablets
Country of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (3,142)
Display Type	LCD
Enclosure Material	Plastic
Global Trade Identification Number	00074000019577
Item Dimensions L x W	16.3L x 7.9W centimeters
Item Type Name	Scientific Calculator
Item Weight	0.2 Pounds
Manufacturer	Sharp
Mfr Part Number	EL-W535TGB-BL
Model Name	EL-W535TGBBL Scientific Calculator
Model Number	EL-W535TGB-BL
Number of Batteries	1 LR44 batteries required.
Power Source	Battery, Solar
Screen Size	3.1 Inches
UPC	074000019577
Unit Count	1.0 Count

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