{"product_id":"rechargeable-991es-ex-scientific-calculators-with-lcd-writing-tablet-foldable-portable-with-notepad-for-business-high-school","title":"991ES EX Rechargeable Scientific Calculators","description":"\u003ch1 style=\"text-align: center;\"\u003e\u003cstrong\u003eROATEE 991ES Rechargeable Scientific Calculator – CalcNote with 4-Line Multiview Display and LCD Writing Tablet, Foldable and Portable for Business, Middle School, High School, College, and Teachers (Black)\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cstrong\u003eAbout this product\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003e991ES Multifunctional Scientific Calculator\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ROATEE scientific calculator includes \u003cstrong\u003e417 functions\u003c\/strong\u003e, ideal for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eGeneral math and science\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003ePre-Algebra, Algebra 1 and 2\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eGeometry\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eStatistics and regression calculations\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eCalculus\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eFractions and decimals\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eCalculations in specific number systems (BASE-N, binary, octal, decimal, hexadecimal)\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eComplex numbers\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eEQN, MATRIX, TABLE, VECTOR, SOLVE functions\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eBiology, Chemistry, and more\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAdditionally, it features a \u003cstrong\u003ememory function\u003c\/strong\u003e, making it more practical and user-friendly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eScientific Calculator with Notepad\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis calculator integrates \u003cstrong\u003ecalculation + LCD writing tablet\u003c\/strong\u003e with a stylus. The tablet allows you to take notes while performing operations, which is very helpful for studying and working. 👉 \u003cstrong\u003eNote:\u003c\/strong\u003e To use the writing area and erase button, you need to \u003cstrong\u003eunlock the LOCK key\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eMultiview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe display can show \u003cstrong\u003e4 calculations simultaneously\u003c\/strong\u003e, significantly improving efficiency when solving problems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDual Power: Solar Panel and Rechargeable Battery\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncludes a \u003cstrong\u003ebuilt-in rechargeable battery\u003c\/strong\u003e, reducing the need to replace batteries and being more eco-friendly. It also works with \u003cstrong\u003esolar power\u003c\/strong\u003e, eliminating worries about battery depletion.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDrop-Resistant Body, Durable and Portable\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe calculator body undergoes rigorous quality tests. Its \u003cstrong\u003eanti-drop\u003c\/strong\u003e design prevents damage from accidental impacts. It weighs only \u003cstrong\u003e5 ounces\u003c\/strong\u003e, so it can be easily stored in a pocket, ideal for school and work.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eConversion between Fraction and Decimal\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYou can switch results with the \u003cstrong\u003eS⇔D\u003c\/strong\u003e key. Or set the mode:\u003c\/span\u003e\u003c\/p\u003e\n\u003col role=\"list\" start=\"1\"\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003ePress \u003cstrong\u003eSHIFT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003ePress \u003cstrong\u003eMODE\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eChoose \u003cstrong\u003e1\u003c\/strong\u003e or \u003cstrong\u003e2\u003c\/strong\u003e to set fraction or decimal mode\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ol\u003e\n\u003cul role=\"list\"\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMthIO = fraction\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLineIO = decimal\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's in the box?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul role=\"list\"\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eScientific Calculator \u003cstrong\u003e991ES MAX\u003c\/strong\u003e × 1\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eCharging cable × 1\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003eInstruction manual × 1\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003ePacking box × 1\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" align=\"left\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S163420e304cb4d949052cd73b43de0556.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1fe5fcb29dca42cb9c7b8ce4232d4100w.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb32ca8b4586e45bc908e4a6d8b033933q.png\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6db755ec2a414657bc4c00f0e82fc109h.png\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S75583acb200445c1b24d7b232dde0af6T.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9426085b7be74f38b954ca33c0894a40f.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2b8409e2249e4e8ea9159558aca3d6803.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc5c84a2c71884444a39bf9b2c3d926aex.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc18d6be6924f41ba8660f9fa6c9e60cdF.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S8f685fd2b271459aac8ffb73463b408cn.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2810bd33cac04ad7a2954bca0aaeaa526.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7ac21073add74d91a6121992ebafee8aN.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S09d3a72aa32640e0b718579d39efacfdF.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S8393ed7646354bdb9e815259f617f13fw.jpg\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb8415807e8824c009b7060372ad2b6f3h.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"NeWYeS Official Store","offers":[{"title":"991 EX \/ China Mainland","offer_id":43095200890951,"sku":"12000046058694189","price":1005.51,"currency_code":"MXN","in_stock":true},{"title":"991 ES-MAX-Black \/ China Mainland","offer_id":43095200923719,"sku":"12000046058694188","price":911.1,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/5301\/2295\/files\/S64ddc47714454481b2ae94764cb94d48I.webp?v=1786851551","url":"https:\/\/vektrashop.com\/en\/products\/rechargeable-991es-ex-scientific-calculators-with-lcd-writing-tablet-foldable-portable-with-notepad-for-business-high-school","provider":"Vektra","version":"1.0","type":"link"}