Can it handle complex numbers in matrix ?

Yes. .or say within reason. Download the manual from Casio, its free and you dont need to buy calculator.. Look at page 114 and 107. Make sure you download fx-991CW...not fx-991.

¿Este artículo tiene garantía?

Good afternoon, I bought the calculators without a guarantee, but I really don't know if the product has a guarantee, although they should have a guarantee. Regards, AC.

when you turn off the calculator, the calculation history is deleted or not?

The data is deleted when you turn it off. It's the only thing that keeps it from being the perfect scientific calculator for me.

is there a ohms law calculator?

Well any calculator can "do" Ohms law. If ypur worried about remembering it, any programming calculator can store formulas for you...Calculated Industries (yellow calculators) makes 2 Electrical calculators, pretty sure both have Ohms law function key.

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CASIO FX-991CW 高度な関数電卓ブラック S

Product ID: 727662253

Details

ブランド
CASIO(カシオ)
画面サイズ
2.25 インチ
色
ブラック
計算機タイプ
関数電卓
電源
ソーラー式

📊540 advanced functions

🔆4-tone high-res display

🔢9-variable memory

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Description

📐 Elevate your calculations—where precision meets professional power.

VISUAL MASTERY - Enhanced 4-tone LCD screen with quad-shade technology for effortless cursor tracking and data editing.
MEMORY THAT LASTS - Stores up to 9 variables with persistent memory across sessions—perfect for complex problem-solving.
POWERFUL MATH ARSENAL - Execute integrals, derivatives, 4x4 matrix operations, and access 47 constants plus 40 conversions seamlessly.
PRECISION MEETS CLARITY - Natural textbook display reduces errors by showing equations exactly as in textbooks.
SMART CONNECTIVITY DURABILITY - Scan QR codes to graph results on ClassPad.net, with a slip-resistant hard case built for classroom and exam rigor.

The CASIO FX-991CW is a solar-powered advanced scientific calculator featuring a high-resolution 4-tone LCD display, 540 built-in functions including calculus and matrix operations, and memory for up to 9 variables. Designed for middle school to university-level math, it offers natural textbook-style input, QR code graphing integration, and a durable slip-resistant case, making it the ultimate tool for professionals and students aiming to excel.

Specifications

ASIN	B0BSJ33C4R
Amazon 売れ筋ランキング	文房具・オフィス用品 - 20,271位 ( 文房具・オフィス用品の売れ筋ランキングを見る ) 関数電卓 - 19位
UPC	889232615011
おすすめ度	4.7 5つ星のうち4.7 (2,135) var
カラー	ブラック
ディスプレイの種類	液晶
ブランド名	CASIO(カシオ)
メーカー名	Casio
メーカー型番	FX-991EX
ユニット数	1.0 個
商品の寸法 L x W	16長さ x 7.6幅 cm
商品の重量	3.35 オンス
商品外装素材	プラスチック
商品種別	カシオアドバンスト関数電卓
型番	FX-991CW
画面サイズの単位	2.25 インチ
計算機タイプ	関数電卓
電池の数	1 アルカリボタン電池電池(付属)
電源のタイプ	ソーラー式

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A$107

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In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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CASIO FX-991CW 高度な関数電卓 ブラック S

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CASIO FX-991CW 高度な関数電卓ブラック S