Feb 9, 2018 · This is a quick tutorial on how to do basic exponents or powers including square roots, cube roots and others, on the Texas Instruments TI-30Xa calculator.Co... The Texas Instruments TI-30Xa is a scientific calculator that features 10 digits for precise calculations. Designed with portability in mind, its compact form factor makes it ideal for pocket storage. Powered by a battery, this calculator is always ready for use without the need for an external power source. used to get the second (or third) function for a specific key. If there are two shift keys, you can list both. TI-30xa What is the label on the shift key(s) yellow shift: 2nd Where is the shift key? top left Scientific notation; In. Identify the key that is used to specify the exponent. (It's usually EE or EXP, or similar.) 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 105. How do you use a TI 30Xa?Reset your calculator to eliminate the syntax error messageCalculator Texas Instruments TI-30XS Multiview User Manual. Scientific calculator (44 pages) Calculator Texas Instruments MultiView TI-30XS Quick Start Manual. Using to create function tables and to play the function game (2 pages) Calculator Texas Instruments MultiView TI-30XS Quick Start Manual. (5 pages)The TI-30XA is an inexpensive scientific calculator approved for use on SAT and ACT tests, two of the most common college entrance exams, and on Advanced Placement exams. You may not take your own calculator to these exams, so become familiar beforehand with specific capabilities and limitations of the TI-30XA calculator handed out with the test.TL;DR (Too Long; Didn't Read) Enter the base number, and then press the carat or ^ symbol (located along the left edge of the keyboard), followed by the exponent. Enter the base number for your exponent. For example, if the exponential expression in question is 5 3, the base number is 5. Press the carat or ^ symbol, which is located along the ...Find the two notches at the top of the calculator. Insert a flat-head screwdriver into one of the notches and carefully pry open the top end of the case. Locate where the case is still attached at the sides. Insert the flat-head screwdriver into one side where the gap has widened. Now gently pry apart the sides of the case.The example below will demonstrate how to input exponents on the TI-30Xa, TI-30Xa Solar, or TI-36X Solar: Example: Raise 5 to the 3rd power. 1) Press the [ON/AC] key to completely clear the calculator. 2) Input [5]. 3) Press the [y to the x] key (located just above the division key). 4) Input [3]. 5) Press [=].I can use either a Ti-30Xa calculator or the iphone calculator for a exam. I just need to know how to put a number to a certain exponent on them. For example: 0.693^-0.28891, how can I type that in in one of my devices?Mar 18, 2016 · This video will show you how to calculate positive, negative & fraction exponents using your Texas Instrument TI-30X IIS. It will also show you how to conve... TI-30Xa: Exponents (Powers) and Exponentials. Calculator Expert. 37.7K subscribers. 157K views 8 years ago. In this short video I will show you how you can access the exponents and exponential...MEMORIES: 1 DISPLAY: 12 LEDs KEYBOARD: 31 buttons SWITCHES: Top Right On/Off BATTERIES: 3-AA NiCads PHYSICAL: 5.8" x 3.2" x 1.3" WEIGHT: 8.25 ounces PRODUCTION: Introduced on August 1, 1975 COST: $49.95 INFO: o Possibly the last TI slide rule calculator that did not have trig functions. SR-20 AC only version of the SR-22 SR-20 was a slightly ...This video tutorial will show you how to enter exponents in the TI-30XS Multiview CalculatorJul 21, 2017 · Press the "Log" button on your calculator. The number you immediately see is the exponent for the original number you entered. Assuming the base number is 10 (which it will always be on a graphing or scientific calculator), you have to multiply 10 by itself the number of times you see onscreen to reach your original number. Check your work. If your exponent is negative, press the (-) key before entering the number. Don't use the * key or ^ or enter a 10. If you have a Casio or Sharp calculator, the button actually says EXP on it so you don't need to do 2 & 3 above. For the TI-30Xa you don’t need to press the 2nd key – just look for the EE button above the 7. TI-30xa; What is the label on the key for entering exponents? EE Where is that key? middle When entering a number that starts with 1x in scientific notation, do you need to enter the 1? (e.g., 1x10 12) yes What is the key for making an exponent negative? +(arrows)- Where is that key? bottom rightThe Texas Instruments TI-30Xa is a scientific calculator that features 10 digits for precise calculations. Designed with portability in mind, its compact form factor makes it ideal for pocket storage. Powered by a battery, this calculator is always ready for use without the need for an external power source. TI-30Xa Calculator - Fractions and Decimals Worksheet and Key. by. Real-Life Mathematics. $2.00. PDF. This Fractions and Decimals Worksheet (with complete Key) gives students practice to become fluent and efficient using their calculator. Students get 30 fractions to 1) enter correctly and 2) change the format.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. TI-30Xa automatically if no key is pressed for about 5 minutes, but does not clear display, settings, pending operations, or memory. Note: | after APD retrieves display, pending operations, settings, and memory. TI-30Xa Solar ¦ To turn on the TI-30Xa Solar, expose the solar panel to light and press !. Note: Always press! to clear the ... The Texas Instruments TI-30XA scientific calculator can do this for you. It is extremely handy when it comes to figuring tricky fractions. It can add, subtract, multiply, and divide fractions when entered in a traditional numerator/denominator format. This calculator can also do a variety of conversions, from fractions to decimals, degrees to ...How to enter numbers in scientific notation on your calculator and do basic calculations with those numbers.2nd, X-1, then just the exponent (include the negative sign, if present) SCI/ENG o To change that scientific notation to a “regular” number, press 2nd , DRG , and to FLO , = , =. (FLO – floating decimal) o To multiply or divide in scientific notation, enter the first item as scientificThe Texas Instruments TI-30XA scientific calculator can do this for you. It is extremely handy when it comes to figuring tricky fractions. It can add, subtract, multiply, and divide fractions when entered in a traditional numerator/denominator format. This calculator can also do a variety of conversions, from fractions to decimals, degrees to ...TI-30XA Calculator Tips Calculator Memory - To use the memory function, hit the STO key to store a number in either memory 1, 2, or 3. o To store the product of , hit STO ; you will now have stored in memory 1 (M1) o To recall the value that is being stored in memory 1 (M1), use the RCL button. RCL 1TI-30xa What is the label on the "shift" key(s) yellow-shift: 2nd Where is the shift key? top left Scientific notation; entering. Identify the key used to enter the exponent. (It is usually EE or EXP, or similar.)Rounding and Decimals Tutorial for your TI-30Xa Calculator. Created by. Real-Life Mathematics. Independent work by students – no prep needed by teacher. Just print a copy of the tutorial and worksheet for each student and watch them learn how to use their calculators well. This step by step Rounding and Decimals Tutorial, with images of the ...operations, settings, and memory. TI-30Xa Solar ¦ To turn on the TI-30Xa Solar, expose the solar panel to light and press !. Note: Always press ! to clear the calculator because memory and display may contain incorrect numbers. ¦ To turn off the TI-30Xa Solar, cover the solar panel with the slide ; Texas Instruments TI30XA | User Manual - Page 4Logarithmic Functions. Enter the log number then "LOG" to get the logarithm of the number. Enter the number and then "LN" for the natural log of a number. The TI-30Xa does not allow for logarithms with bases other than 10 or the natural number e. Enter the exponent, "2nd" and "10^x" to calculate an exponential multiple of 10.In the MathPrint™ mode, you can enter up to four levels of consecutive nested functions and expressions, which include fractions, square roots, exponents with ^, xÑ, and x When you calculate an entry on the Home screen, depending upon space, the answer is displayed either directly to the right of the entry or on the right side of the next line.TI-30Xa: Exponents (Powers) and Exponentials. Calculator Expert. 37.7K subscribers. 157K views 8 years ago. In this short video I will show you how you can access the exponents and exponential...TI-30Xa: Exponents (Powers) and Exponentials. Calculator Expert. 37.7K subscribers. 157K views 8 years ago. In this short video I will show you how you can access the exponents and exponential...Independent work by students - no prep needed by teacher. Just print a copy of the tutorial and worksheet for each student and watch them learn how to use their calculators well. This step by step Exponents and Roots Tutorial, with images of the calculator and the relevant keys, guides students to i...The TI-30XA is an inexpensive scientific calculator approved for use on SAT and ACT tests, two of the most common college entrance exams, and on Advanced Placement exams. You may not take your own calculator to these exams, so become familiar beforehand with specific capabilities and limitations of the TI-30XA calculator handed out with the test.The example below will demonstrate how to input exponents on the TI-30Xa, TI-30Xa Solar, or TI-36X Solar: Example: Raise 5 to the 3rd power. 1) Press the [ON/AC] key to completely clear the calculator. 2) Input [5]. 3) Press the [y to the x] key (located just above the division key). 4) Input [3]. 5) Press [=]. Mar 13, 2018 · 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, however, you ... TI-30XA Calculator Tips Calculator Memory - To use the memory function, hit the STO key to store a number in either memory 1, 2, or 3. o To store the product of , hit STO ; you will now have stored in memory 1 (M1) o To recall the value that is being stored in memory 1 (M1), use the RCL button. RCL 1th. Birthday of the TI-30. The TI-30 was introduced June 13, 1976 together with the SR-40 and the financial calculator Business Analyst . With a SRP of $24.95 compared to the $49.95 of a fully equipped SR-40 the TI-30 was a great success. Probably the best selling calculator ever. Today, 25 years later we still use our modern, two-line TI-30X IIS.Press the "Log" button on your calculator. The number you immediately see is the exponent for the original number you entered. Assuming the base number is 10 (which it will always be on a graphing or scientific calculator), you have to multiply 10 by itself the number of times you see onscreen to reach your original number. Check your work.The 2nd Function Key. You’ll seldom employ some of the 30XA’s more esoteric functions when taking the college entrance and Advanced Placement tests. One key function that you may not be familiar with, however, is essential for successful completion of the test. This is the yellow [2nd function] key at the upper left-hand corner of the keyboard.The example below will demonstrate how to input exponents on the TI-30Xa, TI-30Xa Solar, or TI-36X Solar: Example: Raise 5 to the 3rd power. 1) Press the [ON/AC] key to completely clear the calculator. 2) Input [5]. 3) Press the [y to the x] key (located just above the division key). 4) Input [3]. 5) Press [=].Ans 0.000316 or 3.16 x 10-4 2. If the [H+] = 3.16 x 10-4 and you are asked to find the pH (this is calculating a -LOG). The TI-30Xa and Casio fx-250HC are the same except where indicated. Enter 3.16 ( the 3 significant digits of the [H+] ) a. on the TI press EE key b. The example below will demonstrate how to input exponents on the TI-30Xa, TI-30Xa Solar, or TI-36X Solar: Example: Raise 5 to the 3rd power. 1) Press the [ON/AC] key to completely clear the calculator. 2) Input [5]. 3) Press the [y to the x] key (located just above the division key). 4) Input [3]. 5) Press [=]. Texas Instruments TI-30XA Texas Instruments - Editorial Reviews (1) Add editorial review. www.reviewstream.com. Review: Texas Instruments TI-30XA Scientific Calculator. I just recently bought this calculator for a chemistry course about a year ago, and it has been incredibly easy to use.This is a quick tutorial on how to do basic exponents or powers including square roots, cube roots and others, on the Texas Instruments TI-30Xa calculator.Co...Calculator Texas Instruments TI-30XS Multiview User Manual. Scientific calculator (44 pages) Calculator Texas Instruments MultiView TI-30XS Quick Start Manual. Using to create function tables and to play the function game (2 pages) Calculator Texas Instruments MultiView TI-30XS Quick Start Manual. (5 pages)The example below will demonstrate how to input exponents on the TI-30Xa, TI-30Xa Solar, or TI-36X Solar: Example: Raise 5 to the 3rd power. 1) Press the [ON/AC] key to completely clear the calculator. 2) Input [5]. 3) Press the [y to the x] key (located just above the division key). 4) Input [3]. 5) Press [=]. Apr 24, 2017 · The TI-30 is sold in three different models, including the TI-30Xa, the TI-30X IIS and the TI-30XS Multiview. The TI-30 calculator line is ideal for advanced scientific calculations, particularly if you are a student. All of the TI-30 calculators provide a function to calculate the natural log of whatever number you enter into the calculator. Independent work by students - no prep needed by teacher. Just print a copy of the tutorial and worksheet for each student and watch them learn how to use their calculators well. This step by step Exponents and Roots Tutorial, with images of the calculator and the relevant keys, guides students to i...Though as I noted in another comment the TI-83 calculator (quite recent) still uses BCD. When I wrote my own arbitrary precision library I used base $10^9$, which is sort of decimal haha, but of course I used the internal binary integer and floating point to manipulate the digits. $\endgroup$Independent work by students - no prep needed by teacher. Just print a copy of the tutorial and worksheet for each student and watch them learn how to use their calculators well. This step by step Exponents and Roots Tutorial, with images of the calculator and the relevant keys, guides students to i...Jul 22, 2021 · Basic Arithmetic Enter the first number then press the “+”, “-“, “x” or “/” (division), depending on the operation. Enter the next number and then the “=” to complete the operation. Because the TI-30Xa performs mathematical operations in the order of parenthesis, exponents, multiplication/division and addition/subtraction ... Rounding and Decimals Tutorial for your TI-30Xa Calculator. Created by. Real-Life Mathematics. Independent work by students – no prep needed by teacher. Just print a copy of the tutorial and worksheet for each student and watch them learn how to use their calculators well. This step by step Rounding and Decimals Tutorial, with images of the ...Apr 24, 2017 · The TI-30 is sold in three different models, including the TI-30Xa, the TI-30X IIS and the TI-30XS Multiview. The TI-30 calculator line is ideal for advanced scientific calculations, particularly if you are a student. All of the TI-30 calculators provide a function to calculate the natural log of whatever number you enter into the calculator. To calculate logarithms with a base different than 10, you may use the following workaround: 1) Input [160] Press [LOG]. 2) Press [÷]. 3) Input [4] Press [LOG]. 4) Press [=] to complete the calculation. The calculator will display 3.6609. Please see the Scientific Model family guidebooks for additional information. Aug 12, 2014 · For a TI-30 calculator: Take for example the number 1.52 x 105. To type this number as it is in scientific notation, first type in 1.52. Next press the [2nd] key and then the key that has EE printed above it (it's the x-1 key). The EE means " x 10 to the power of". After you press the [EE] key, type in the exponent 5. Aug 12, 2014 · For a TI-30 calculator: Take for example the number 1.52 x 105. To type this number as it is in scientific notation, first type in 1.52. Next press the [2nd] key and then the key that has EE printed above it (it's the x-1 key). The EE means " x 10 to the power of". After you press the [EE] key, type in the exponent 5. Apr 25, 2017 · Logarithmic Functions. Enter the log number then "LOG" to get the logarithm of the number. Enter the number and then "LN" for the natural log of a number. The TI-30Xa does not allow for logarithms with bases other than 10 or the natural number e. Enter the exponent, "2nd" and "10^x" to calculate an exponential multiple of 10. Ans. Ans is retained in memory, even after the TI-30X Ö is turned off. To recall the value of Ans: ƒ Press % i (Ans displays on the screen), or ƒ Press any operations key (T, U, F, etc.) as the first part of an entry. Ans and the operator are both displayed. Order of Operations The TI-30X Ö uses EOSØ (Equation Operating System) to evaluate ...This video will give you a complete overview of all of the functions that the Texas Instruments TI-30XA scientific calculator has to offer: from statistics ...TI-30Xa Calculator - Fractions and Decimals Worksheet and Key. This Fractions and Decimals Worksheet (with complete Key) gives students practice to become fluent and efficient using their calculator. Students get 30 fractions to 1) enter correctly and 2) change the format. Students also get 20 fractions problems involving addition, subtraction ...To input an exponent using the TI-30X IIS/B, TI-34 II Explorer Plus, TI-30XS MultiView, and TI-34 MultiView, use the carat [^] key. For TI-30X IIS/B, TI-34 II Explorer Plus, and TI-30XS MultiView users, the carat key is located below the [p] key. For TI-34 MultiView users, the carat key is located below the [x 2] key. For example: 3 4 = ? Jul 24, 2021 · Overview The TI-30Xa is Texas Instruments’ most basic scientific calculator. This calculator does all that a classic scientific calculator does and not much more. This Calculator is meant for elementary and possibly middle school science and math classes but not much more. It also may be perfect for anyone who wan’s a calculator for their…. Jun 17, 2015 · TI-30Xa: Exponents (Powers) and Exponentials. Calculator Expert. 37.7K subscribers. 157K views 8 years ago. In this short video I will show you how you can access the exponents and exponential... The TI-36X Solar calculates up to 12 digits and can display up to 10 digits plus a minus sign (-9,999,999,999 through 9,999,999,999) and a 2-digit exponent. Results with more than 10 digits display in scientific notation.Find the two notches at the top of the calculator. Insert a flat-head screwdriver into one of the notches and carefully pry open the top end of the case. Locate where the case is still attached at the sides. Insert the flat-head screwdriver into one side where the gap has widened. Now gently pry apart the sides of the case.Jul 24, 2021 · Overview The TI-30Xa is Texas Instruments’ most basic scientific calculator. This calculator does all that a classic scientific calculator does and not much more. This Calculator is meant for elementary and possibly middle school science and math classes but not much more. It also may be perfect for anyone who wan’s a calculator for their…. A quick tutorial on how to find statistics from a data set including mean and standard deviation on the Texas Instruments TI-30X iis Scientific CalculatorCon...How to work with numbers in scientific notation with the TI-30XA calculator. Demonstrates how to toggle back-and-forth between standard/normal/floating notat...Press the "Log" button on your calculator. The number you immediately see is the exponent for the original number you entered. Assuming the base number is 10 (which it will always be on a graphing or scientific calculator), you have to multiply 10 by itself the number of times you see onscreen to reach your original number. Check your work.Calculator Texas Instruments TI-30XS Multiview User Manual. Scientific calculator (44 pages) Calculator Texas Instruments MultiView TI-30XS Quick Start Manual. Using to create function tables and to play the function game (2 pages) Calculator Texas Instruments MultiView TI-30XS Quick Start Manual. (5 pages) The TI-30XA is an inexpensive scientific calculator approved for use on SAT and ACT tests, two of the most common college entrance exams, and on Advanced Placement exams. You may not take your own calculator to these exams, so become familiar beforehand with specific capabilities and limitations of the TI-30XA calculator handed out with the test.used to get the second (or third) function for a specific key. If there are two shift keys, you can list both. TI-30xa What is the label on the shift key(s) yellow shift: 2nd Where is the shift key? top left Scientific notation; In. Identify the key that is used to specify the exponent. (It's usually EE or EXP, or similar.)TI-30XA Calculator Tips Calculator Memory - To use the memory function, hit the STO key to store a number in either memory 1, 2, or 3. o To store the product of , hit STO ; you will now have stored in memory 1 (M1) o To recall the value that is being stored in memory 1 (M1), use the RCL button. RCL 1Enter the base of the term on the right side of the equation then press "LOG." Write down the value. For example, for the equation 3^ (2x+1) = 15, enter "3" then "LOG" into the TI-30X. Enter the value of the log of the non-exponential term into the calculator, press "÷", then enter the value of the log of the exponential term.A quick tutorial on how to find roots or radicals, including square and cube roots on the Texas Instruments TI-03Xa Scientific Calculator.0:00 Intro0:18 Butt...The "X" in all current TI-30 models refers to the addition of a 10+2 display (that is, a 10 digit mantissa plus a 2-digit exponent) in 1993; with the addition of a 2-line display and a D-pad in the XIIS/XIIB in 1999, the TI-30 line split in 2, with the TI-30Xa becoming TI's overall entry-level scientific, and the enhanced XII designs offering ...The Texas Instruments TI-30Xa is a scientific calculator that features 10 digits for precise calculations. Designed with portability in mind, its compact form factor makes it ideal for pocket storage. Powered by a battery, this calculator is always ready for use without the need for an external power source.The 2nd Function Key. You’ll seldom employ some of the 30XA’s more esoteric functions when taking the college entrance and Advanced Placement tests. One key function that you may not be familiar with, however, is essential for successful completion of the test. This is the yellow [2nd function] key at the upper left-hand corner of the keyboard.Press the "Log" button on your calculator. The number you immediately see is the exponent for the original number you entered. Assuming the base number is 10 (which it will always be on a graphing or scientific calculator), you have to multiply 10 by itself the number of times you see onscreen to reach your original number. Check your work.How to put exponents on a ti-30xa Step 3 Find the two notches at the top of the calculator. Insert a flat-head screwdriver into one of the notches and carefully pry open the top end of the case. Locate where the case is still attached at the sides. Insert the flat-head screwdriver into one side where the gap has widened. TI-30Xa automatically if no key is pressed for about 5 minutes, but does not clear display, settings, pending operations, or memory. Note: | after APD retrieves display, pending operations, settings, and memory. TI-30Xa Solar ƒ To turn on the TI-30Xa Solar, expose the solar panel to light and press !. Note: Always press! to clear the ... Reset your calculator to eliminate the syntax error message
I can use either a Ti-30Xa calculator or the iphone calculator for a exam. I just need to know how to put a number to a certain exponent on them. For example: 0.693^-0.28891, how can I type that in in one of my devices? . Htacs
This video will show you how to calculate positive, negative & fraction exponents using your Texas Instrument TI-30X IIS. It will also show you how to conve...I can use either a Ti-30Xa calculator or the iphone calculator for a exam. I just need to know how to put a number to a certain exponent on them. For example: 0.693^-0.28891, how can I type that in in one of my devices? The Texas Instruments TI-30XA scientific calculator can do this for you. It is extremely handy when it comes to figuring tricky fractions. It can add, subtract, multiply, and divide fractions when entered in a traditional numerator/denominator format. This calculator can also do a variety of conversions, from fractions to decimals, degrees to ...This video shows how to enter Powers or Scientific Notation into the TI-30XA Calculator. Example of Powers 4^6 , Scientific Notation 3.45 x 10^4 Oct 11, 2018 · A quick tutorial on how to find statistics from a data set including mean and standard deviation on the Texas Instruments TI-30X iis Scientific CalculatorCon... The TI-30 is sold in three different models, including the TI-30Xa, the TI-30X IIS and the TI-30XS Multiview. The TI-30 calculator line is ideal for advanced scientific calculations, particularly if you are a student. All of the TI-30 calculators provide a function to calculate the natural log of whatever number you enter into the calculator.How to enter numbers in scientific notation on your calculator and do basic calculations with those numbers.2nd, X-1, then just the exponent (include the negative sign, if present) SCI/ENG o To change that scientific notation to a “regular” number, press 2nd , DRG , and to FLO , = , =. (FLO – floating decimal) o To multiply or divide in scientific notation, enter the first item as scientific Oct 2, 2021 · MEMORIES: 1 DISPLAY: 12 LEDs KEYBOARD: 31 buttons SWITCHES: Top Right On/Off BATTERIES: 3-AA NiCads PHYSICAL: 5.8" x 3.2" x 1.3" WEIGHT: 8.25 ounces PRODUCTION: Introduced on August 1, 1975 COST: $49.95 INFO: o Possibly the last TI slide rule calculator that did not have trig functions. SR-20 AC only version of the SR-22 SR-20 was a slightly ... I can use either a Ti-30Xa calculator or the iphone calculator for a exam. I just need to know how to put a number to a certain exponent on them. For example: 0.693^-0.28891, how can I type that in in one of my devices? Ans. Ans is retained in memory, even after the TI-30X Ö is turned off. To recall the value of Ans: ƒ Press % i (Ans displays on the screen), or ƒ Press any operations key (T, U, F, etc.) as the first part of an entry. Ans and the operator are both displayed. Order of Operations The TI-30X Ö uses EOSØ (Equation Operating System) to evaluate ... How to put exponents on a ti-30xa Step 3 Find the two notches at the top of the calculator. Insert a flat-head screwdriver into one of the notches and carefully pry open the top end of the case. Locate where the case is still attached at the sides. Insert the flat-head screwdriver into one side where the gap has widened.Jul 24, 2021 · Overview The TI-30Xa is Texas Instruments’ most basic scientific calculator. This calculator does all that a classic scientific calculator does and not much more. This Calculator is meant for elementary and possibly middle school science and math classes but not much more. It also may be perfect for anyone who wan’s a calculator for their…. TI 30X IIS vs TI 30Xa. TI 30X IIS and TI 30Xa are two scientific calculators from Texas Instrument. These calculators are popular and easy to use as well as very affordable. Considering the price, you will get more than enough with either of them. Go check our article below if you want to know which is better between these best buys.Though as I noted in another comment the TI-83 calculator (quite recent) still uses BCD. When I wrote my own arbitrary precision library I used base $10^9$, which is sort of decimal haha, but of course I used the internal binary integer and floating point to manipulate the digits. $\endgroup$.