can I save notes in this calculator??? Can i write and save formulars??

Here is the answer from Casio:There are two features on the fx-9750GII that you might find useful:(1) in Graph mode (Option 3 from the Main Menu), you can use GMEM to store and recall functions that you wish to graph repeatedly.(2) Program mode (Option 9 from the Main Menu) allows you to enter programs, which is very flexible and might allow you to store the notes and formulas you need. However, its primary purpose is to execute programs, so I don't know how useful that option would be for you. It depends on how much information you are planning on storing.There is no specific note-taking mode on the fx-9750GII.

which is the max size of matrix you can input?

According to the user manual, the max size of matrix you input is 999 (rows) X 999 (columns).

Where is the stat key? My son says he needs a graphing calculator for college algebra and it has to have the stat key

I don't use it for stat, but there's a menu button, and when you press it, it shows you the main menu. There you'll find Stat. There's another option in that menu for Graph! I use the graphing option all the time, it's very easy to use.

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Casio fx-9750GII Standard Graphing Calculator, White

Product ID: 1144731

Details

Brand
Casio
Calculator Type
Graphing
Color
White/Blue
Power Source
Battery
Screen Size
2

📈Graph rectangular, polar, parametric & conics

📊21x8 char LCD display

🔋Long-lasting AAA battery power

Description

📐 Elevate your math game with Casio’s sleek graphing powerhouse!

GRAPH LIKE A PRO - Supports graphing of rectangular, polar, parametric functions, inequalities, and conic sections with interactive analysis.
AFFORDABLE POWERHOUSE - All essential graphing features at a fraction of the price of competitors, with batteries included for long-lasting use.
SOLVE SMARTER NOT HARDER - Built-in equation solver and table generator streamline problem-solving and data visualization.
ADVANCED STATS COMPLEX NUMBERS - Perform statistical regressions and complex number calculations effortlessly.
VISUALIZE COMPLEX MATH INSTANTLY - Large 21x8 line display with intuitive icon menu for seamless navigation.

The Casio fx-9750GII is a versatile graphing calculator featuring a large 21-character by 8-line LCD display and an easy-to-navigate icon menu. It supports graphing of multiple function types including rectangular, polar, parametric, inequalities, and conic sections. Equipped with an interactive equation solver, table generator, and advanced statistical and complex number functions, it is ideal for students from middle school through college. Powered by included AAA batteries, it offers exceptional value with features rivaling higher-priced models.

Specifications

ASIN	B00154GSQA
Best Sellers Rank	#392,082 in Office Products ( See Top 100 in Office Products ) #180 in Graphing Office Calculators
Brand	Casio
Built-In Media	Calculator
Calculator Type	Graphing
Color	White/Blue
Compatible Devices	Devices with USB or 3-pin cable connectivity, including computers and projectors.
Customer Reviews	4.6 4.6 out of 5 stars (4,090)
Display Type	LCD
Enclosure Material	Plastic
Global Trade Identification Number	00079767186050, 02602020002071, 04971850033905, 04971850186045
Item Dimensions L x W	6"L x 4"W
Item Type Name	Graphing Calculator
Item Weight	215 g
Manufacturer	Casio Inc.
Mfr Part Number	FX9750GII-WE
Model Name	RA3458
Model Number	FX9750GII
Number of Batteries	1 A batteries required. (included)
Number of Items	1
Power Source	Battery Powered
Screen Size	2
UPC	999994697238 680808309163 112039989161 088021724426 806791935336 021112283969 617407450729 079767186050 641438182052 031111415902 807031786848 700465277329 782386297235 601000834277 640206656320 823019547898 767872159624 745734284233 809187152300 800011177117 806293937333 079767186043 014444935408 012302291536 808112747246 638084588185 801593134024 151903448588 031113295007 642008957995 0797671834…
Unit Count	1 Count
Warranty Description	90 day

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