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.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...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. It will adjust the exponent for you. o To do factorials, enter the number, then press PRB . How do you do 6.02 x10 23 on a calculator? type in the significant figures, 6.02. hit the 2nd key (top left) hit the EE button (above the #7, also X-1) type in the exponent, 23. Can TI 30x IIS do exponents?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 ... TI-30Xa Calculator: Using numbers in exponential notation Robert Gist 20 subscribers Subscribe 3 Share 377 views 1 year ago COLORADO SPRINGS How to enter and use numbers in exponential...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. 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.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? 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 ...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. TI-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.)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 ... A quick tutorial on how to solve logs and LN natural log of any base on the Texas Instruments TI-30Xa Scientific CalculatorHopefully youve found somethin. 1 Enter 5 and press 2nd LOG 10 x is labeled above it. That is enter 1000 LOG. ƒ To turn off the TI-30Xa Solar cover the solar panel with the slide case. Insert a flat-head screwdriver into ...Dec 19, 2011 · 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... TI-30Xa Calculator: Using numbers in exponential notation Robert Gist 20 subscribers Subscribe 3 Share 377 views 1 year ago COLORADO SPRINGS How to enter and use numbers in exponential...Scientific notation and display settingOverview 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-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 1 Jul 13, 2015 · 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 ... The Orion TI-30XS MultiView™ Talking Scientific Calculator is referred to as the Orion TI-30XS. In order to make this document accessible for all users, we indicate keys on the TI-30XS portion of the calculator with a bold font. For visual and audio clarification purposes, we also use brackets around the words or symbols for aTo 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 = ?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 ...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.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. The TI-30Xa is a scientific calculator made by Texas Instruments. This single-line calculator contains three memory stores labeled “M1,” “M2” and “M3.”. Storing numbers in memory makes working with the same few numbers easier, letting you quickly pull a stored number back up for use. Step 3 – The TI-30Xa is really a scientific ...TI-30Xa calculatorCopy. First, type the number to be put to a negative power. Then, press the exponent button. Then, press the open parenthesis button. Now press the change-sign button. Then, press the number that is the opposite of the number the first number was to be put to the power of. Now, press the close parenthesis button. Now, press enter.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 [=].One of the many functions of the calculator is solving logarithmic equations of both base 10 and natural logs of base e. Enter the base of the term on the left side of the equation then press “LOG. ” Write the value down. For example, for the equation 3^ (2x+1) = 15, enter “15” then “LOG” into the TI-30X. Enter the base of the term ...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 = ?Reset your calculator to eliminate the syntax error messageJul 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 ... A quick tutorial on how to do exponents or powers on the Texas Instruments TI-30X iis scientific calculator. This video covers square, cube, fraction and negative exponents.Reset your calculator to eliminate the syntax error messageIn 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.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.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 1 Apr 28, 2022 · How do you enter an exponent on a Texas instruments ti-83 calculator? Enter your expression, then press the ^ key, then your exponent. If you exponent is an expression encase it in perentheses ()Ex.3x5x+2Press 3 x ^ (5x+2) Copy. First, type the number to be put to a negative power. Then, press the exponent button. Then, press the open parenthesis button. Now press the change-sign button. Then, press the number that is the opposite of the number the first number was to be put to the power of. Now, press the close parenthesis button. Now, press enter.Scientific notation and display settingRounding 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 ...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 ... TI-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.) Sep 29, 2021 · TI-30Xa Calculator: Using numbers in exponential notation Robert Gist 20 subscribers Subscribe 3 Share 377 views 1 year ago COLORADO SPRINGS How to enter and use numbers in exponential... 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 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 1 Each section is followed by instructions for keystroke examples that demonstrate the TI-30XS MultiView™ and TI-30XB MultiView functions. All references in this manual will refer to the TI-30XS MultiView, but are also applicable for the TI-30XB MultiView. Examples assume all default settings, as shown in the Modes section.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. 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 ...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 TI-30Xa is one of the best calculators for 8 th graders. It performs many functions such as trigonometric functions, powers, factorials, reciprocals, and much more. The calculator is powered by a battery for your ease and convenience. The calculator is ideal for primary and advanced math, which is why you can also use the calculator as you ...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.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 1 The Orion TI-30XS MultiView™ Talking Scientific Calculator is referred to as the Orion TI-30XS. In order to make this document accessible for all users, we indicate keys on the TI-30XS portion of the calculator with a bold font. For visual and audio clarification purposes, we also use brackets around the words or symbols for aThe 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.Aug 17, 2018 · 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... 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. 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.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 1Ans 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. 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.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 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 A quick tutorial on how to square, cube, and solve positive and negative exponents or powers on the Texas Instruments TI-30XS Multiview calculator used for GED exams. Contents: 0:00 Intro 0:19 ...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. Scientific notation and display settingJul 23, 2018 · This video tutorial will show you how to enter exponents in the TI-30XS Multiview Calculator The Orion TI-30XS MultiView™ Talking Scientific Calculator is referred to as the Orion TI-30XS. In order to make this document accessible for all users, we indicate keys on the TI-30XS portion of the calculator with a bold font. For visual and audio clarification purposes, we also use brackets around the words or symbols for aTI-84 models find square roots using a second function key. The square root function key is located above the x -squared (x 2) key. To access the square root function, press the second function key (2nd) in the upper left corner of the key pad. Then press the x 2 key and input the value to be evaluated. Press Enter to calculate the square root.How to work with numbers in scientific notation with the TI-30XS calculator. Demonstrates how to toggle back-and-forth between standard/normal/floating notat...How to enter numbers in scientific notation on your calculator and do basic calculations with those numbers.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.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.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. TI-30Xa, TI-30XIIS, TI-30XS Multiview, TI 34 Multiview, TI-36X Pro, Casio fx-300ES Plus, Casio fx-300MS Plus, Casio fx-300MS Square root, Square, Cube Root, Cube, Powers of 2, Powers of 3, Exponents, Raising numbers to powers, raising numbers to exponents, Taking the roots of whole numbers, Assessment, Teacher Assessment, Formative Assessment ...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. 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 ...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. 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...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 TI-30X IIS/B and TI-34 II Explorer Plus do not have the functionality for solving equations. The variables on these calculators are solely for memory purposes. However, users can incorporate the variables into algebra by storing a value to the variable and using that variable to solve the expression.Copy. First, type the number to be put to a negative power. Then, press the exponent button. Then, press the open parenthesis button. Now press the change-sign button. Then, press the number that is the opposite of the number the first number was to be put to the power of. Now, press the close parenthesis button. Now, press enter.Print the tutorial, hand it to students and watch them be able to …. 1. Calculate the square and square root of all numbers. 2. Calculate any higher power than 2 of any number. 3. Calculate any root other than the square root of any number. 4. Do complex computations with all exponents and roots using their calculator. Press the "On/c" button to clear the calculator. Enter a figure and then hit the "X" key followed by another figure and then the "2nd" key to work out a percentage. This sum will multiply the first figure by the second to two decimal points. Entering "200 X 5 "2nd" and then "=" would give you 5 percent of 200, or 10, for example.th. 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. It will adjust the exponent for you. o To do factorials, enter the number, then press PRB . How do you do 6.02 x10 23 on a calculator? type in the significant figures, 6.02. hit the 2nd key (top left) hit the EE button (above the #7, also X-1) type in the exponent, 23. Can TI 30x IIS do exponents?TI-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.)First, press the number you want to take the factorial of, press the “x!” key, and finally press the “=” key to evaluate it. Finding the “x!” key on your calculator will be the most challenging part of the operation. In some cases, the key is found on a secondary or tertiary function, with the symbol above the button you need to ...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.
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 4 . Chakui 007
A quick tutorial on how to solve logs and LN natural log of any base on the Texas Instruments TI-30Xa Scientific CalculatorHopefully youve found somethin. 1 Enter 5 and press 2nd LOG 10 x is labeled above it. That is enter 1000 LOG. ƒ To turn off the TI-30Xa Solar cover the solar panel with the slide case. Insert a flat-head screwdriver into ... Jul 13, 2015 · 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 ... 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. 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. 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…. Calculator giving incorrect answers... It's a TI-30Xa bought brand new as part of a set for my Chemistry class. I checked the modes and it's set to degrees, so I don't think its a setting issue. Sometimes it's right: 1+1=2, 2X2=4, 4+4=8, 8X8=64. When multiplying two digit numbers it seems to move the decimal point to the left one place: 11X5=5. ...This video tutorial will show you how to enter exponents in the TI-30XS Multiview CalculatorPress the "On/c" button to clear the calculator. Enter a figure and then hit the "X" key followed by another figure and then the "2nd" key to work out a percentage. This sum will multiply the first figure by the second to two decimal points. Entering "200 X 5 "2nd" and then "=" would give you 5 percent of 200, or 10, for example.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 ...Sep 20, 2022 · It will adjust the exponent for you. o To do factorials, enter the number, then press PRB . How do you do 6.02 x10 23 on a calculator? type in the significant figures, 6.02. hit the 2nd key (top left) hit the EE button (above the #7, also X-1) type in the exponent, 23. Can TI 30x IIS do exponents? 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... 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 4 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 4 .