Could a student use this instead of Ti 85?

There’s a school actually still asking for TI 85s as of a year ago? Anyway this is more comparable to a ti 81 or ti 80 (using close to 30 year old calculators as I’m in shock to see someone asking about a ti 85

Is this calculator the same as a TI-83/84 calculator?

A couple of weak points from my perspective. The 1/x function requires two button presses - I use that all the time for chained calculations in chemistry, so dedicated button is a must for me. Also the RCL is a two button-press operation whereas STO is direct one-press; for me, it should be the other way around because I store often-used constants, like ideal gas constant, avogadro number, etc., in memories and need them with single button press. Button presses matter, especially on tests.

where is the function button on this CS-183? for: X^Y power (example 4^4 = 4x4x4 = 64

I don't know. The instructions for the unit were so bad I ended up giving it to a friend's daughter. I bought a reconditioned TI-89 from Amazon: plenty of YouTube videos for using the TI-89. The unit in question may be a very capable calculator; the included instructions are terrible. No YouTube support.

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📈 Elevate your calculations, dominate your courses!

COMPACT YET COMFORTABLE - Slim 7 x 3.3 inch design fits perfectly in your hand or backpack—study anywhere, anytime.
SWITCH MODES SEAMLESSLY - Angle, calculation, and display modes adapt instantly to your workflow, boosting efficiency and accuracy.
MASTER EVERY MATH CHALLENGE - Over 280 built-in functions covering everything from algebra to calculus and statistics—your all-in-one academic weapon.
RELIABLE SUPPORT WARRANTY - 365-day limited warranty with responsive 24-hour customer service keeps you worry-free.
VISUALIZE COMPLEX EQUATIONS - Large 3-inch LCD screen lets you see graphs and formulas side-by-side for flawless problem-solving.

The CATIGA CS-229 Scientific Calculator features a crisp 3-inch LCD capable of displaying detailed graphs alongside equations. With over 280 scientific functions and three flexible modes, it supports a wide range of subjects from high school algebra to AP calculus. Its compact design and reliable 1 LR44 battery make it perfect for students and professionals seeking precision and convenience, backed by a 1-year warranty and responsive customer support.

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Brand	CATIGA
Manufacturer	Catiga
Model	CS-229
Model Name	cs229
Product Dimensions	18.08 x 11.43 x 0.25 cm; 136.08 g
Batteries	1 LR44 batteries required. (included)
Item model number	CS-229
Compatible Devices	Most devices with a display
Number of items	1
Standing screen display size	3 Inches
Display Type	LCD
Power Source	Battery Powered
Batteries Included	Yes
Batteries Required	Yes
Battery cell composition	Lithium Ion
Material	Plastic
Includes Rechargeable Battery	No
Manufacturer	Catiga
Item Weight	136 g

Scientific Calculator with Graphic Functions - Multiple Modes with Intuitive Interface - Perfect for Beginner and Advanced Courses, High School or College (Black)

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