Ti 30xiis calculator

Feb 16, 2013 · Texas Instruments TI-30X IIS Scientific Calculator . Menu for selection of settings appropriate to classroom and study needs, combining statistics and advanced scientific functions. Helps students explore math and science concepts. Shows entries on the top line and results on the bottom line. Entry line scrolling feature. Mar 29, 2013 · Frequently bought together. This item: Texas Instruments TI-30XIIS Scientific Calculator. $1339. +. Ticonderoga Wood-Cased Pencils, Pre-Sharpened, 2 HB Soft, Yellow, 30 Count. $599 ($0.20/Count) +. Crayola Colored Pencils (36ct), Kids Pencils Set, Art Supplies, Great for Coloring Books, Classroom Pencils, Nontoxic, 3+. $597. Here’s a video explaining how to play the game that I call Randomizer on a TI-30XIIS calculator (Please Read Description)This game can be played by doing this: Press PRB then hit the left key once then select RANDI then put in 1,1000 then write down on a piece of paper 1, two numbers from 2 to 999 and 1000. PDFSep 19, 2022 · Don't have this calculator? Pick one up here: https://amzn.to/3H2HphDusing my Amazon affiliate link.*Disclaimer: Clicking this link and making a purchase mea... Aug 2, 2023 · To standardize calculator usage during U.S. Coast Guard mariner credentialing examinations, the National Maritime Center (NMC) is implementing the following: Beginning January 1, 2024, all mariners testing at a regional examination center, monitoring unit, or federal/state maritime academy will be issued a Texas Instruments TI-30XIIS calculator ... The TI-30X IIS scientific calculator performs practical and advanced mathematical functions, which is ideal for high school and college-level coursework. This Texas Instruments TI-30X IIS comes with a case, so it's easy to place in your bag or backpack. 2-line display helps you view data easily.Just a basic introduction to the calculator, including how to change between floating decimal mode and scientific notation, how to get in & out of fixed deci...Texas Instruments® TI-30XS MultiView Scientific Calculator, Blue 4.8 out of 5 stars, average rating value. Read 266 Reviews. ... Texas Instruments® TI-30X IIS Solar Scientific Calculator,... Item #176928 (393) $13.39 each. Texas Instruments® TI-36X Pro Scientific Calculator. Item #944889 (182)Don't have this calculator? Pick one up here: https://amzn.to/3H2HphDusing my Amazon affiliate link.*Disclaimer: Clicking this link and making a purchase mea...Office Products › Office Electronics › Calculators › Scientific Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime Try Prime …There were several versions of the TI 2500. My TI 2500 is in good working condition. Be sure to check out the history section of www.datamath.org for an excellent discussion of the development of the Datamath calculator and TI's two desktop calculators, the TI 3000 and TI 3500 introduced at the same time. Manual Cover, Datamath Box.Texas Instruments TI-30XIIS Scientific Calculator, Black with Blue Accents. 4.7 out of 5 stars 37,938. 100K+ bought in past month. $9.88 $ 9. 88. List: $21.95 $21.95. FREE delivery Wed, Aug 30 on $25 of items shipped by Amazon. More Buying Choices $5.99 (149 used & …Calculator or TI 30X IIS Calculator is a non-binary failed debuter in Inanimate Objects 3 and T:Core War. In Core War, they were one of the 32 recommended characters who could join the game in "Lever", but they didn't end up joining with only 4 votes, tying with Bacon Triple Cheeseburger, Black Tea, Diamond Sword, Electromagnetic Ultraviolet Wave …Sep 26, 2005 · Texas Instruments TI-30X IIS Scientific Calculator . Menu for selection of settings appropriate to classroom and study needs, combining statistics and advanced scientific functions. Helps students explore math and science concepts. Shows entries on the top line and results on the bottom line. Entry line scrolling feature. Texas Instruments TI-30XIIS Scientific Calculator. 4,456. 2K+ bought in past month. $1925. List: $25.99. FREE delivery Thu, Aug 10 on $25 of items shipped by Amazon. Only 3 left in stock - order soon. More Buying Choices. $5.99 (114 used & new offers) Watch this video to learn how to type exponents on a TI-30X IIS calculator.The TI 30X IIS and TI 30XS calculators offer unparalleled functionality, helping you breeze through complex calculations. Explore our selection and make your mathematical journey seamless with Texas Instruments – a brand synonymous with accuracy and innovation. Shop now to unlock a world of numerical possibilities. Graphing CalculatorSuppose you want the value y x. On most calculators, you enter the base, press the exponent key and enter the exponent. Here's an example: Enter 10, press the exponent key, then press 5 and enter. (10^5=) The calculator should display the number 100,000, because that's equal to 10 5. Before you start making a list of calculations, …Texas Instruments Texas Instruments TI-30XIIS 2 Line Scientific Calculator (4.7) 834 reviews $13.83 3.3 ¢/ea Price when purchased online Actual Color: Black Black $13.83 …Don't have this calculator? Pick one up here: https://amzn.to/3H2HphDusing my Amazon affiliate link.*Disclaimer: Clicking this link and making a purchase mea...TI-30. The TI-30 is a scientific calculator manufactured by Texas Instruments, the first model of which was introduced in 1976. While the original TI-30 was discontinued in 1983 after several design revisions, TI maintains the TI-30 designation as a branding for its low and mid-range scientific calculators.Office Products › Office Electronics › Calculators › Scientific Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime Try Prime …Texas Instruments™ TI-30X IIS Calculator. Combine basic scientific and trigonometric functions. Supplier: Texas Instruments Inc TI30XIIS ... Scientific Calculator: Color: Black: Keypad: Color-coded, hard plastic keys: Dimensions (L x W) 6.1 x 3.2 in. (15.4 x 8.1cm) Length (Metric) 15.4cm: Width (Metric) 8.1cm:Using the Exponent Key. Suppose you want the value y x. On most calculators, you enter the base, press the exponent key and enter the exponent. Here's an example: Enter 10, press the exponent key, then press 5 and enter. (10^5=) The calculator should display the number 100,000, because that's equal to 10 5.How to convert to and from Scientific Notation with the TI 30X IIS. How to perform operations with Scientific Notation in the TI 30X IIS calculator.Sep 19, 2022 · Don't have this calculator? Pick one up here: https://amzn.to/3H2HphDusing my Amazon affiliate link.*Disclaimer: Clicking this link and making a purchase mea... Get Texas Instruments TI-30XIIS 10-Digit Scientific Battery & Solar Powered Scientific Calculator, Blue (TI30XIIS) fast at Staples. Free next-Day shipping. No order minimum.Aug 27, 2015 · In this video we will run through a complete tutorial on how to use the TI-30X IIS calculator. By the end of this tutorial you should be highly proficient at... Portable & Gadgets Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Black Color: Black. 1,054. 1K+ bought in past month. $1899. FREE delivery Thu, Aug 31 on $25 of items shipped by Amazon. More Buying Choices. $5.99 (46 used & new offers) Texas Instruments TI-30X IIS | Full Specifications: Number of characters per line: 11, Number of display lines: 2, Display tilting: no, ... Texas Instruments TI-30X IIS 2-Line Scientific Calculator review. I am using Texas Instruments TI-30 X IIS 2-Line Scientific Calculator for around three years. It is not only one of the best calculators for ...Product Description. Texas Instruments BA II plus Financial Calculator for business professionals and students features are that it performs common math as well as various financial functions; the Worksheet mode includes tables for amortization, bond, depreciation, and compound interest, Built-in memory for storage of previous …Nov 28, 2006 · Texas Instruments TI-30X IIS Scientific Calculator, Blue TEXAS INSTRUMENTS 30XIIS Scientific/Math Calculator - Orange Scientific Calculator,w/Equation Recall ,3-1/5"x6-1/10"x3/4", Sold as 1 each Scientific Calculator. eCalc is a free and easy-to-use online scientific calculator that supports and resembles a ti-30 with many advanced features, including unit conversion, equation solving, square roots, EE functions, and even complex-number math. eCalc is offered as both a free online calculator and as a downloadable calculator. 0 0. So if pink is your thing, go for the TI-30X IIS. And finally, the fanciest of all the SAT and ACT (and chemistry) approved calculators, the TI-36 Pro. It's going to set you back coming in at around $24 - although often on SALE for around $18. It has 2-lines on the display and is also "fancy". It does have the much used single punch EE key for ...May 6, 2010 · Portable & Gadgets Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Black Color: Black. 4.7 out of 5 stars ... Portable & Gadgets Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Black Color: Black. 1,132. 200+ bought in past month. $1794. FREE delivery Jan 25 - 31. Or fastest delivery Jan 22 - 24. More Buying Choices. $7.50 (27 used & new offers) Scientific calculator (16 pages) Calculator Texas Instruments MathPrint TI-30X Plus Quick Manual. Scientific calculator (27 pages) Calculator Texas Instruments solar TI-36X User Manual. Scientific calculator (48 pages) Calculator Texas Instruments TI-34 - MultiView Scientific Calculator User Manual.Step 1 Open the device. If the screw is not turning, do not force it. This can strip the screw. See the How to Remove a Stripped Screw guide if the screw is already stripped. Using the #00 screwdriver, unscrew the six, 6mm Phillips screws. Use the spudger to pry into the space between the blue back cover and the white body to take off the back ...Products Counting Devices Calculators S65241 Favorite item to keep tabs on it! Saved! Go to My Lists You have reached the limit of 350 favorited …A place to post programs, questions, requests, news, and other stuff for Texas Instruments calculators. Members Online Faulty calculation with a TI-30X IISThe same TI page has user-guides for the software. For calculators that are not "TI" branded, but which are freely available and can be used without a 90 day limit, several options are available. NumWorks offers an Open Source calculator (Creative Commons license) with an emulator that can be used on computers or with a free app on …instructions for the TI-30X IIS during class. Quik Start Calculator registers. Most keys have 2 functions. One appears in white on the face of the key. The second function appears in color above the key. To access the function appearing in gold, press [2nd] first. Arithmetic. Arithmetic can be done as shown below. Example: Multiply 1,222 by 32.8Click File > Save Screen or click . In the dialog box: Navigate to the folder in which you want to store the screen image file. Select the file type for the appropriate image format. Type a file name. Use a name that describes the screen image. Click Save.Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender TEXAS INSTRUMENTS 30XIIS Scientific/Math Calculator - Orange Texas Instruments TI-30X IIS 2-Line Solar/Battery-Powered Scientific Calculator, Lime GreenDescription. Get your teen ready for high-level math and science with a Texas Instruments TI-30XS Multiview Scientific Calculator. This Texas Instruments calculator is ideal for high school students for general math, algebra, statistics, geometry, chemistry and more. It shows 4 lines in the display for comparing complex calculations. Texas Instruments TI-30XIIS Scientific Calculator. TWO-LINE DISPLAY . The TI 30X series is on the approved list by the National Council of Examiners for Engineering and Surveying, and it’s an affordable calculator with a simple two-line display showing the entry and result at the same time, making it easier to double-check for errors or ...26 offers from $12.88. Texas Instruments TI30XIIS Pink. 4.7 out of 5 stars. 493. 13 offers from $11.98. EooCoo 2-Line Standard Scientific Calculator, Portable and Cute School Office Supplies, Suitable for Primary School to College Student Use - Pink. 4.5 out of 5 stars. 477. 1 offer from $11.95.Scroll through previous entries and investigate critical patterns as well as viewing and pasting into a New Calculation. The TI-30XS MultiView scientific calculator is approved for use on SAT, ACT, and AP exams ... Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender. dummy. Texas Instruments TI-84 Plus Graphics …To get a square root on a Texas TI-30X IIS scientific calculator, press the “2nd” key before pressing the exponent function. Cube Roots and Beyond – A multi-function scientific calculator with a solar power option, the Texas Instruments TI-30X IIS can do even more operations that appear possible by looking at the keyboard. The secret is the …View and Download Texas Instruments TI-30X IIS user manual online. A Guide for Teachers. TI-30X IIS calculator pdf manual download. Also for: Ti-30xiis - handheld scientific calculator, Ti-30x ii. Sep 30, 2011 · WYNGS Protective Case for Texas Instruments TI-30XA / TI-30XIIS / Casio FX-300ES Plus 2 / Casio FX-991ES Plus 2 / Casio FX-115ES Plus 2 Scientific Calculator in Pink $11.95 $ 11 . 95 Get it as soon as Tuesday, Sep 26 TI-30. The TI-30 is a scientific calculator manufactured by Texas Instruments, the first model of which was introduced in 1976. While the original TI-30 was discontinued in 1983 …TI 30X IIS, solar powered, two line display. First introduced in 1999 along with several other two line display calculators. ... TI E.T. Calculator, (1982) similar to the TI 1030, 1031, and similar Slimline TI calculators, this one sports an E.T., the Extra-Terrestrial, motiff based on the 1982 blockbuster Steven Spielberg motion picture. (See ...Scientific Calculator. eCalc is a free and easy-to-use online scientific calculator that supports and resembles a ti-30 with many advanced features, including unit conversion, equation solving, square roots, EE functions, and even complex-number math. eCalc is offered as both a free online calculator and as a downloadable calculator. 0 0. Nov 28, 2006 · Texas Instruments TI-30X IIS Scientific Calculator, Blue TEXAS INSTRUMENTS 30XIIS Scientific/Math Calculator - Orange Scientific Calculator,w/Equation Recall ,3-1/5"x6-1/10"x3/4", Sold as 1 each Scientific Calculator. eCalc is a free and easy-to-use online scientific calculator that supports and resembles a ti-30 with many advanced features, including unit conversion, equation solving, square roots, EE functions, and even complex-number math. eCalc is offered as both a free online calculator and as a downloadable calculator. 0 0. 4.5. $74.97 $67.95. With the TI-83 Plus Graphing Calculator, you can rest assured that it's permitted on multiple testing formats including the SAT, ACT, PSAT, AP, and International Baccalaureate. Buy Now. We earn a commission if you make a purchase, at no additional cost to you. 01/23/2024 02:25 pm GMT.Texas instruments TI-30XIIS is a scientific calculator? Yes, the Texas Instruments TI-30X IIS, released in 2003, is a scientific calculator. It is an updated version of the TI-30 scientific calculator from 1976, which sold for $25.The TI-30X IIS scientific calculator performs practical and advanced mathematical functions, which is ideal for high school and college-level coursework. This Texas Instruments TI-30X IIS comes with a case, so it's easy to place in your bag or backpack. 2-line display helps you view data easily.The professor recommended Texas Instruments TI -30X IIS for the calculator, but I don't think that is true, because my high school math teacher had us borrow his TI - 84 Plus CE to survive his AP Calculus class. Furthermore, my high school teacher recommended buying a good one, instead of having to buy one for Calc 2 and another for Calc 3, etc.1. Premium material eva is waterproof and shock-proof. This hard shell protective cover is suitable for ti 30x iis calculator. It can protect for. ti-30xiis from scratches and collisions, it is very durable. 2. Sturdy and smooth zipper for calculators for texas instruments is easy to open and close to prevent desktop calculator from falling …Oct 27, 2015 · The Texas Instruments TI-30X IIS 2-Line Scientific Calculator features two-line display and other advanced features users get with the TI-30X IIS. The display shows the equation you are creating on the top line, and the numbers or symbols you are currently entering on the second line. Oct 10, 2019 · Get ready for class with this TI-30X IIS Scientific Calculator. It features a two-line display that shows both entry and calculated results at the same time. This scientific calculator combines statistics and advanced scientific functions for high school math and science classes. Suppose you want the value y x. On most calculators, you enter the base, press the exponent key and enter the exponent. Here's an example: Enter 10, press the exponent key, then press 5 and enter. (10^5=) The calculator should display the number 100,000, because that's equal to 10 5. Before you start making a list of calculations, …Scroll through previous entries and investigate critical patterns as well as viewing and pasting into a New Calculation. The TI-30XS MultiView scientific calculator is approved for use on SAT, ACT, and AP exams ... Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender. dummy. Texas Instruments TI-84 Plus Graphics …The TI-30XS has a simple keypad with basic mathematical operations, while the TI-30X IIs has a more complex keypad with additional features such as trigonometric, logarithmic, and statistical functions. Additionally, the TI-30X IIs has a built-in memory that stores calculations and formulas, while the TI-30XS does not.It has 2-line display shows entry and calculated result at same time. Easily handles 1 and 2 variable statistical calculations and three angle modes (degrees, …Best Sellers in Scientific Calculators. #1. Texas Instruments TI-30XIIS Scientific Calculator, Black with Blue Accents. 42,604. 130 offers from $6.17. #2. Texas Instruments TI-30XS MultiView Scientific Calculator. 32,681. 89 offers from $19.36.1. Use the basic operation symbols to perform basic operations. These operations include addition (+), subtraction (-), …Texas Instruments® TI-30XS MultiView Scientific Calculator, Blue 4.8 out of 5 stars, average rating value. Read 266 Reviews. ... Texas Instruments® TI-30X IIS Solar Scientific Calculator,... Item #176928 (393) $13.39 each. Texas Instruments® TI-36X Pro Scientific Calculator. Item #944889 (182)Scroll through previous entries and investigate critical patterns as well as viewing and pasting into a New Calculation. The TI-30XS MultiView scientific calculator is approved for use on SAT, ACT, and AP exams ... Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender. dummy. Texas Instruments TI-84 Plus Graphics …Best Sellers in Scientific Calculators. #1. Texas Instruments TI-30XIIS Scientific Calculator, Black with Blue Accents. 42,604. 130 offers from $6.17. #2. Texas Instruments TI-30XS MultiView Scientific Calculator. 32,681. 89 offers from $19.36.Nov 10, 2015 · Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender RENUS 8 Packs, 2-Line Engineering Scientific Calculator Function Calculator for Student and Teacher 16 AAA Batteries Included Texas Instruments TI-30X IIS 2-Line Solar/Battery-Powered Scientific Calculator, Lime Green Texas instruments calculator software simultaneous equation solver guidebook (28 pages) Calculator Texas Instruments TI-89 Manual Book. Texas instruments calculator software polynomial root finder guidebook (23 pages) Calculator Texas Instruments TI-89 Manual Book. Texas instruments calculator software cellsheet guidebook (87 pages) Calculator ...Most popular calculator cover 3D Models. add to list. Tags TI-82 & TI-85 slide cover. add to list. BA II Plus Professional Calculator Cover / Case. add to list. Tags Calculator Casio Cover. add to list. Tags Texas Instruments Calculator Front Covers (TI-84 ...Gently lift up the front of the motherboard, at the top of the calculator. Desolder the positive and negative terminals on the solar panel. Use the tip of a spudger to "walk" the solar panel out of its housing, by pushing it down through the two cutouts until it slides out of the bottom. Remove the solar panel. Add a comment.I love my ti36x pro. Truly. Get used to it and it can do anything. It has solvers in it. Learning those is important. Insert and parentheses and all the stuff. It's a good calculator. Heres my actual advice. Graphing calculators are not that much better than setting up the problem right and then running the calc.First enter the numerator of the fraction, then press the division key and enter the denominator. Hit the "equals" key and the fraction will display as a decimal. If you can't convert decimals to a fraction directly on the calculator, but the calculator can help you do it with a pencil and paper. Suppose you want to express 0.7143 as a fraction.Texas Instruments TI-30X IIS . Texas Instruments TI-30Xa . Texas Instruments TI-36X Pro ... In 2019, they released the TI-Nspire CX family of calculators, which have some updated functions from the previous …Introduction to the TI-30X IIS Calculator – YouTube. Where is Mode button on TI 30X IIS? The TI-30X IIS has (3) numeric notation modes – FLO, SCI, and ENG. The mode settings can be accessed by pressing [2nd] [SCI/ENG]. The TI-30XS MultiView has (3) numeric notation modes – NORM, SCI, and ENG. The mode settings can be …Calculating mean and standard deviation Press You will see n underlined and the number of data points on the second line. Press the to move to to see the mean. Press the again to move to to see the standard deviation. Clear previous data: Press (above ). You will see 1-VAR 2-VAR. Press (right arrow key twice) to see CLRDATA Press Enter the data:Texas Instruments TI-30XIIS Scientific Calculator, Black with Blue Accents. 4.7 out of 5 stars. 42,641. #1 Best Seller. in Scientific Calculators. 128 offers from $6.17. Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender. 4.8 out of 5 stars.Texas instruments ti-30x iis calculator ti-30x iis scientificDownload free pdf for ti ti-30x iis calculator manual Ti-30x iis texas instruments scientific calculator $8.97 shipped30x iis fx casio manualslib calculadora. Texas Instruments TI-30X - IIS Scientific Calculator Support and Manuals. Check Details1. Premium material eva is waterproof and shock-proof. This hard shell protective cover is suitable for ti 30x iis calculator. It can protect for. ti-30xiis from scratches and collisions, it is very durable. 2. Sturdy and smooth zipper for calculators for texas instruments is easy to open and close to prevent desktop calculator from falling …The TI-30X IIB has the exact same keys as the TI-30X IIS. S is the solar version of the calculator and B is the battery operated version. The position of the graphically represented keys can be found by moving your mouse on top of the graphic. Calculating one-variable statistics. I love my ti36x pro. Truly. Get used to it and it can do anything. It has solvers in it. Learning those is important. Insert and parentheses and all the stuff. It's a good calculator. Heres my actual advice. Graphing calculators are not that much better than setting up the problem right and then running the calc.Gently lift up the front of the motherboard, at the top of the calculator. Desolder the positive and negative terminals on the solar panel. Use the tip of a spudger to "walk" the solar panel out of its housing, by pushing it down through the two cutouts until it slides out of the bottom. Remove the solar panel. Add a comment.Nov 10, 2015 · Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender RENUS 8 Packs, 2-Line Engineering Scientific Calculator Function Calculator for Student and Teacher 16 AAA Batteries Included Texas Instruments TI-30X IIS 2-Line Solar/Battery-Powered Scientific Calculator, Lime Green Scientific Calculator. eCalc is a free and easy-to-use online scientific calculator that supports and resembles a ti-30 with many advanced features, including unit conversion, equation solving, square roots, EE functions, and even complex-number math. eCalc is offered as both a free online calculator and as a downloadable calculator. 0 0.Scroll through previous entries and investigate critical patterns as well as viewing and pasting into a New Calculation. The TI-30XS MultiView scientific calculator is approved for use on SAT, ACT, and AP exams ... Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Lavender. dummy. Texas Instruments TI-84 Plus Graphics …A reciprocal is a special power; it's a number raised to the -1 power. It's also what you get by swapping the numerator and denominator. There is a special key for reciprocals. It's the x-1 key. So let's find the reciprocal of 5. We press 5 x-1 = , and we get an answer of 0.2. There is also a special key for taking a square root.Texas Instruments Texas Instruments TI-30XIIS 2 Line Scientific Calculator (4.7) 834 reviews $13.83 3.3 ¢/ea Price when purchased online Actual Color: Black Black $13.83 …Fundamental, two-line calculator combines statistics and advanced scientific functions for high school math and science. Get ready for class …TI-30XIIS reference guidebook by Texas InstrumentsPortable & Gadgets Texas Instruments TI-30X IIS 2-Line Scientific Calculator, Black Color: Black. 1,054. 1K+ bought in past month. $1899. FREE delivery Thu, Aug 31 on $25 of items shipped by Amazon. More Buying Choices. $5.99 (46 used & new offers) Ever wonder how to use the TI 30XS or TI-30X IIS calculator to find the Factorial of a number (n!)? To see or buy this calculator on Amazon please click this...The main factor is to use the calculator efficiently and accurately – to save time during math calculations. 5. Is TI 30x IIS allowed on PSAT? Using a scientific calculator is good for the PSAT. All scientific calculators are allowed on the PSAT. 6. Is a TI 84 allowed on the PSAT? Yes, it is allowed. 7. Is TI-Nspire CX allowed on PSAT?1. Premium material eva is waterproof and shock-proof. This hard shell protective cover is suitable for ti 30x iis calculator. It can protect for. ti-30xiis from scratches and collisions, it is very durable. 2. Sturdy and smooth zipper for calculators for texas instruments is easy to open and close to prevent desktop calculator from falling … | Coiztqeszu (article) | Mpyhfl.