How do I emove the case to change the battery?

Remove slide cover. Place calculator face down. Using a small Phillips screwdriver, remove screws from back case. Install new batteries positive side up, as shown on diagram inside case.

Will it provide inverse calculations?

Yes, it has inverses for most of the functions it provides. Press the green [2nd] key to access the functions printed in light green above the other keys, e.g. [2nd] [sin] for sin-1, the inverse sine function.

is there memory function?

One of the reasons I have been using this model calculator for the last 20+ years is because it DOES have a memory. You can store up to 3 values by simply pressing STO and then 1, 2, or 3. To Reclaim the stored value press RCL and then 1, 2, or 3.

Does this new ti have a hard slip cover like my old 1995 ti-30x has? I keep mine in my toolbox next my hammer & the hard cover protects the keypad.

Yes it does! As well as some instructions in the hard cover slip.

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

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Texas TI30XA Scientific calculator

Product ID: 50193325

Details

Brand
Texas
Calculator Type
Colour
grey
Compatible devices
Texas
Material
Plastic
Model name
30Xa

📊2.1-inch clear LCD display

📏Compact 15.2 x 7.9 cm design

🔋Battery powered with included CR123A

SI$713

Duties & taxes included

In stock

Sold byAmazon Solomon IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📐 Master math with clarity and confidence — the TI-30Xa means business!

CLEAR VISUALS - 2.1-inch LCD screen delivers crisp, easy-to-read results even during intense study sessions.
COMPACT PORTABLE - Slim, lightweight design fits perfectly in your bag or hand for on-the-go calculations.
TRUSTED RELIABILITY - Powered by long-lasting CR123A batteries with a 3-year warranty for uninterrupted performance.
EFFORTLESS PRECISION - Simple, intuitive layout minimizes distractions so you can focus on mastering math.
PERFECT FOR PROGRESS - Ideal for secondary school and beyond, supporting essential scientific functions without overwhelm.

The Texas Instruments TI-30Xa is a compact, battery-powered scientific calculator featuring a clear 2.1-inch LCD display and a user-friendly design tailored for secondary school and higher education. With essential scientific functions easily accessible, it supports focused learning without unnecessary complexity, backed by a 3-year warranty and trusted Texas Instruments quality.

Specifications

ASIN	B00000JBNS
Best Sellers Rank	151,083 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 202 in Scientific Calculators
Box Contents	Calculator
Brand Name	Texas Instruments
Calculator Type	Engineering/Scientific
Colour	grey
Compatible Devices	Texas Instruments TI30ecoRS
Customer Reviews	4.7 4.7 out of 5 stars (18,107)
Display Type	LCD
Enclosure Material	Plastic
Global Trade Identification Number	00033317029990
Item Dimensions L x W	15.2L x 7.9W centimetres
Item Part Number	TI30XA
Item Type Name	TI-30XA Scientific Calculator
Item Weight	0.22 Pounds
Manufacturer	Texas Instruments
Manufacturer Part Number	30XA/TBL/1L1/K
Model Name	30Xa
Model Number	30XA/FC
Number of Batteries	CR123A batteries required. (included)
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Product Warranty	3 Years.
Screen Size	2.1 Inches
UPC	033317029990 001910143238

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