{"appState":{"pageLoadApiCallsStatus":true},"articleState":{"article":{"headers":{"creationTime":"2016-03-26T14:02:07+00:00","modifiedTime":"2016-03-26T14:02:07+00:00","timestamp":"2022-09-14T18:03:52+00:00"},"data":{"breadcrumbs":[{"name":"Technology","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33512"},"slug":"technology","categoryId":33512},{"name":"Electronics","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33543"},"slug":"electronics","categoryId":33543},{"name":"Graphing Calculators","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33551"},"slug":"graphing-calculators","categoryId":33551}],"title":"How to Work in Scientific Notation on the TI-84 Plus Calculator","strippedTitle":"how to work in scientific notation on the ti-84 plus calculator","slug":"how-to-work-in-scientific-notation-on-the-ti-84-plus-calculator","canonicalUrl":"","seo":{"metaDescription":"Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10 12 will display as 2.53 E","noIndex":0,"noFollow":0},"content":"<p>Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10<sup>12</sup> will display as 2.53<sub>E</sub>12. You can enter an expression in scientific notation by pressing [2nd][,] to type an <sub>E</sub>, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation. See the first screen.</p>\n<img src=\"https://www.dummies.com/wp-content/uploads/398727.image0.jpg\" width=\"535\" height=\"161\" alt=\"image0.jpg\"/>\n<p>In Normal mode, results that have a power of ten that are more than 9 or less than –3 are automatically expressed in scientific notation. In other words, any number that is more than ten digits or smaller than 0.001 will display in scientific notation. See the second screen.</p>\n<p>Fortunately, you can force your calculator to display answers in scientific notation. Press [MODE] and use the arrow keys to choose Sci (short for Scientific mode) and press [ENTER]. You can rest assured that all your answers will be displayed in scientific notation. See the third screen.</p>\n<p class=\"Warning\">It’s not a good idea to leave your calculator in Sci mode. Doing so will not harm your calculator, but seeing every calculation in scientific notation may cause you to lose your mind!</p>","description":"<p>Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10<sup>12</sup> will display as 2.53<sub>E</sub>12. You can enter an expression in scientific notation by pressing [2nd][,] to type an <sub>E</sub>, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation. See the first screen.</p>\n<img src=\"https://www.dummies.com/wp-content/uploads/398727.image0.jpg\" width=\"535\" height=\"161\" alt=\"image0.jpg\"/>\n<p>In Normal mode, results that have a power of ten that are more than 9 or less than –3 are automatically expressed in scientific notation. In other words, any number that is more than ten digits or smaller than 0.001 will display in scientific notation. See the second screen.</p>\n<p>Fortunately, you can force your calculator to display answers in scientific notation. Press [MODE] and use the arrow keys to choose Sci (short for Scientific mode) and press [ENTER]. You can rest assured that all your answers will be displayed in scientific notation. See the third screen.</p>\n<p class=\"Warning\">It’s not a good idea to leave your calculator in Sci mode. Doing so will not harm your calculator, but seeing every calculation in scientific notation may cause you to lose your mind!</p>","blurb":"","authors":[{"authorId":9554,"name":"Jeff McCalla","slug":"jeff-mccalla","description":" <p><b>Jeff McCalla</b> is a mathematics teacher at St. Mary's Episcopal School in Memphis, TN. He cofounded the TI-Nspire SuperUser group, and received the Presidential Award for Excellence in Science & Mathematics Teaching.</p> <p><b>C.C. Edwards</b> is an educator who has presented numerous workshops on using TI calculators.</p>","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/9554"}},{"authorId":9555,"name":"C. C. Edwards","slug":"c-c-edwards","description":" <p><b>Jeff McCalla</b> is a mathematics teacher at St. Mary's Episcopal School in Memphis, TN. He cofounded the TI-Nspire SuperUser group, and received the Presidential Award for Excellence in Science & Mathematics Teaching.</p> <p><b>C.C. 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Category","mainCategoryUrl":"/category/articles/level-0-category-0"}}},"navigationCategoriesLoadedStatus":"success"},"searchState":{"searchList":[],"searchStatus":"initial","relatedArticlesList":{"term":"160953","count":5,"total":356,"topCategory":0,"items":[{"objectType":"article","id":160953,"data":{"title":"How to Work in Scientific Notation on the TI-84 Plus Calculator","slug":"how-to-work-in-scientific-notation-on-the-ti-84-plus-calculator","update_time":"2016-03-26T14:02:07+00:00","object_type":"article","image":null,"breadcrumbs":[{"name":"Technology","slug":"technology","categoryId":33512},{"name":"Electronics","slug":"electronics","categoryId":33543},{"name":"Graphing Calculators","slug":"graphing-calculators","categoryId":33551}],"description":"Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*1012 will display as 2.53E12. You can enter an expression in scientific notation by pressing [2nd][,] to type an E, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation. See the first screen.\n\nIn Normal mode, results that have a power of ten that are more than 9 or less than –3 are automatically expressed in scientific notation. In other words, any number that is more than ten digits or smaller than 0.001 will display in scientific notation. See the second screen.\nFortunately, you can force your calculator to display answers in scientific notation. Press [MODE] and use the arrow keys to choose Sci (short for Scientific mode) and press [ENTER]. You can rest assured that all your answers will be displayed in scientific notation. See the third screen.\nIt’s not a good idea to leave your calculator in Sci mode. Doing so will not harm your calculator, but seeing every calculation in scientific notation may cause you to lose your mind!","item_vector":null},"titleHighlight":null,"descriptionHighlights":null,"headers":null,"categoryList":["technology","electronics","graphing-calculators"],"title":"How to Work in Scientific Notation on the TI-84 Plus Calculator","slug":"how-to-work-in-scientific-notation-on-the-ti-84-plus-calculator","articleId":160953},{"objectType":"article","id":149129,"data":{"title":"Put Scientific Notation to Work in Physics Problems","slug":"put-scientific-notation-to-work-in-physics-problems","update_time":"2016-03-26T10:55:27+00:00","object_type":"article","image":null,"breadcrumbs":[{"name":"Academics & The Arts","slug":"academics-the-arts","categoryId":33662},{"name":"Science","slug":"science","categoryId":33756},{"name":"Physics","slug":"physics","categoryId":33769}],"description":"Physics deals with some very large and very small numbers. To work with such numbers, you use scientific notation. Scientific notation is expressed as a number between 1 and 10 multiplied by a power of 10.\nFor example, suppose you’re measuring the mass of an electron in the MKS system. You put an electron on a scale (in practice, electrons are too small to measure on a scale — you have to see how they react to the pull of magnetic or electrostatic forces to measure their mass), and you measure the following:\n0.00000000000000000000000000000091 kg\nWhat the heck is that? That’s a lot of zeros, and it makes this number very unwieldy to work with. Fortunately, you know all about scientific notation, so you can convert the number into the following:\n9.1 x 10–31 kg\nThat is, 9.1 multiplied by a power of 10, 10–31. Scientific notation works by extracting the power of 10 and putting it on the side, where it’s handy. You convert a number to scientific notation by counting the number of places you have to move the decimal point to get the first digit in front of that decimal point.\nFor example, 0.050 is 5.0 x 10–2 because you move the decimal point two places to the right to get 5.0. Similarly, 500 is 5.0 x 102 because you move the decimal point two places to the left to get 5.0.\nSample question\n\n\nWhat is 0.000037 in scientific notation?\nThe correct answer is 3.7 x 10–5. You have to move the decimal point five times to the right to get 3.7.\n\n\nPractice questions\n\n\nWhat is 0.0043 in scientific notation?\n\n\nWhat is 430,000.0 in scientific notation?\n\n\nWhat is 0.00000056 in scientific notation?\n\n\nWhat is 6,700.0 in scientific notation?\n\n\nFollowing are answers to the practice questions:\n\n\n4.3 x 10–3\nYou have to move the decimal point three places to the right.\n\n\n4.3 x 105\nYou have to move the decimal point five places to the left.\n\n\n5.6 x 10–7\nYou have to move the decimal point seven places to the right.\n\n\n6.7 x 103\nYou have to move the decimal point three places to the left.\n\n","item_vector":null},"titleHighlight":null,"descriptionHighlights":null,"headers":null,"categoryList":["academics-the-arts","science","physics"],"title":"Put Scientific Notation to Work in Physics Problems","slug":"put-scientific-notation-to-work-in-physics-problems","articleId":149129},{"objectType":"article","id":149972,"data":{"title":"How to Multiply with Scientific Notation","slug":"how-to-multiply-with-scientific-notation","update_time":"2016-03-26T11:01:52+00:00","object_type":"article","image":null,"breadcrumbs":[{"name":"Academics & The Arts","slug":"academics-the-arts","categoryId":33662},{"name":"Math","slug":"math","categoryId":33720},{"name":"Basic Math","slug":"basic-math","categoryId":33722}],"description":"Multiplying numbers that are in scientific notation is fairly simple because multiplying powers of ten is easy. Here's how to multiply two numbers that are in scientific notation:\n\n Multiply the two decimal parts of the numbers.\nSuppose you want to multiply the following: (4.3 x 105)(2 x 107)\nMultiplication is commutative, so you can change the order of the numbers without changing the result. And because of the associative property, you can also change how you group the numbers. Therefore, you can rewrite this problem as (4.3 x 2)(105 x 107).\nMultiply what's in the first set of parentheses — 4.3 x 2 — to find the decimal part of the solution: 4.3 x 2 = 8.6.\n \n Multiply the two exponential parts by adding their exponents.\nNow multiply 105 x 107: 105 x 107 = 105 + 7 = 1012\n \n Write the answer as the product of the numbers you found in Steps 1 and 2.\n8.6 x 1012\n \n If the decimal part of the solution is 10 or greater, move the decimal point one place to the left and add 1 to the exponent.\nBecause 8.6 is less than 10, you don't have to move the decimal point again, so the answer is 8.6 x 1012.\nNote: This number equals 8,600,000,000,000.\n \n\nThis method works even when one or both of the exponents are negative numbers. For example, if you follow the preceding series of steps, you find that (6.02 x 1023)(9 x 10–28) = 5.418 x 10–4. Note: In decimal form, this number equals 0.0005418.","item_vector":null},"titleHighlight":null,"descriptionHighlights":null,"headers":null,"categoryList":["academics-the-arts","math","basic-math"],"title":"How to Multiply with Scientific Notation","slug":"how-to-multiply-with-scientific-notation","articleId":149972},{"objectType":"article","id":194384,"data":{"title":"How to Write Numbers in Scientific Notation","slug":"how-to-write-numbers-in-scientific-notation","update_time":"2022-08-17T16:01:16+00:00","object_type":"article","image":null,"breadcrumbs":[{"name":"Academics & The Arts","slug":"academics-the-arts","categoryId":33662},{"name":"Math","slug":"math","categoryId":33720},{"name":"Algebra","slug":"algebra","categoryId":33721}],"description":"Scientific notation is a standard way of writing very large and very small numbers so that they're easier to both compare and use in computations. To write in scientific notation, follow the form\r\n\r\n\r\n\r\nwhere N is a number between 1 and 10, but not 10 itself, and a is an integer (positive or negative number).\r\n\r\nYou move the decimal point of a number until the new form is a number from 1 up to 10 (N), and then record the exponent (a) as the number of places the decimal point was moved. Whether the power of 10 is positive or negative depends on whether you move the decimal to the right or to the left. Moving the decimal to the right makes the exponent negative; moving it to the left gives you a positive exponent.\r\nTo see an exponent that's positive, write 312,000,000,000 in scientific notation:\r\n\r\n \t\r\nMove the decimal place to the left to create a new number from 1 up to 10.\r\nWhere's the decimal point in 312,000,000,000? Because it's a whole number, the decimal point is understood to be at the end of the number: 312,000,000,000.\r\nSo, N = 3.12.\r\n\r\n \t\r\nDetermine the exponent, which is the number of times you moved the decimal.\r\nIn this example, you moved the decimal 11 times; also, because you moved the decimal to the left, the exponent is positive. Therefore, a = 11, and so you get\r\n\r\n \t\r\nPut the number in the correct form for scientific notation\r\n\r\n\r\nTo see an exponent that's negative, write .00000031 in scientific notation.\r\n\r\n \t\r\nMove the decimal place to the right to create a new number from 1 up to 10.\r\nSo, N = 3.1.\r\n\r\n \t\r\nDetermine the exponent, which is the number of times you moved the decimal.\r\nIn this example, you moved the decimal 7 times; also, because you moved the decimal to the right, the exponent is negative. Therefore, a = –7, and so you get\r\n\r\n \t\r\nPut the number in the correct form for scientific notation\r\n\r\n\r\nWhen you get used to writing numbers in scientific notation, you can do it all in one step. Here are a few examples:\r\n\r\n\r\nOrder of magnitude\r\nWhy does scientific notation always use a decimal between 1 and 10? The answer has to do with order of magnitude, which is a simple way to keep track of roughly how large a number is so you can compare numbers more easily. The order of magnitude of a number is its exponent in scientific notation. For example,\r\n703 = 7.03 x 102 — order of magnitude is 2\r\n600,000 = 6 x 105 — order of magnitude is 5\r\n0.00095 = 9.5 x 10–4 — order of magnitude is –4\r\nEvery number between 10 and 100 has an order of magnitude of 1. Every number between 100 and 1,000 has an order of magnitude of 2.","item_vector":null},"titleHighlight":null,"descriptionHighlights":null,"headers":null,"categoryList":["academics-the-arts","math","algebra"],"title":"How to Write Numbers in Scientific Notation","slug":"how-to-write-numbers-in-scientific-notation","articleId":194384},{"objectType":"article","id":149989,"data":{"title":"How to Write in Scientific Notation","slug":"how-to-write-in-scientific-notation","update_time":"2016-03-26T11:01:57+00:00","object_type":"article","image":null,"breadcrumbs":[{"name":"Academics & The Arts","slug":"academics-the-arts","categoryId":33662},{"name":"Math","slug":"math","categoryId":33720},{"name":"Basic Math","slug":"basic-math","categoryId":33722}],"description":"Scientific notation is a system for writing very large and very small numbers that makes them easier to work with. Every number can be written in scientific notation as the product of two numbers (two numbers multiplied together):\n\n A decimal greater than or equal to 1 and less than 10\n \n A power of ten written as an exponent \n \n\nHere's how to write any number in scientific notation:\n\n Write the number as a decimal (if it isn't one already).\nSuppose you want to change the number 360,000,000 to scientific notation. First, write it as a decimal:\n360,000,000.0\n \n Move the decimal point just enough places to change this number to a new number that's between 1 and 10.\nMove the decimal point to the right or left so that only one nonzero digit comes before the decimal point. Drop any leading or trailing zeros as necessary.\nUsing 360,000,000.0, only the 3 should come before the decimal point. So move the decimal point eight places to the left, drop the trailing zeros, and get 3.6:\n360,000,000.0 becomes 3.6\n \n Multiply the new number by 10 raised to the number of places you moved the decimal point in Step 2.\nYou moved the decimal point eight places, so multiply the new number by108:\n3.6 x 108\n \n If you moved the decimal point to the right in Step 2, put a minus sign on the exponent.\nYou moved the decimal point to the left, so you don't have to take any action here. Thus, 360,000,000 in scientific notation is 3.6 x 108.\n \n\nChanging a decimal to scientific notation basically follows the same process. For example, suppose you want to change the number 0.00006113 to scientific notation:\n\n Write 0.00006113 as a decimal (this step's easy because it's already a decimal):\n0.00006113\n \n To change 0.00006113 to a new number between 1 and 10, move the decimal point five places to the right and drop the leading zeros:\n6.113\n \n Because you moved the decimal point five places to the right, multiply the new number by 10–5:\n6.113 x 10–5\nSo 0.00006113 in scientific notation is 6.113 x 10–5.\n \n\nWhen you get used to writing numbers in scientific notation, you can do it all in one step. Here are a few examples:\n","item_vector":null},"titleHighlight":null,"descriptionHighlights":null,"headers":null,"categoryList":["academics-the-arts","math","basic-math"],"title":"How to Write in Scientific Notation","slug":"how-to-write-in-scientific-notation","articleId":149989}]},"relatedArticlesStatus":"success"},"routeState":{"name":"Article3","path":"/article/technology/electronics/graphing-calculators/how-to-work-in-scientific-notation-on-the-ti-84-plus-calculator-160953/","hash":"","query":{},"params":{"category1":"technology","category2":"electronics","category3":"graphing-calculators","article":"how-to-work-in-scientific-notation-on-the-ti-84-plus-calculator-160953"},"fullPath":"/article/technology/electronics/graphing-calculators/how-to-work-in-scientific-notation-on-the-ti-84-plus-calculator-160953/","meta":{"routeType":"article","breadcrumbInfo":{"suffix":"Articles","baseRoute":"/category/articles"},"prerenderWithAsyncData":true},"from":{"name":null,"path":"/","hash":"","query":{},"params":{},"fullPath":"/","meta":{}}},"dropsState":{"submitEmailResponse":false,"status":"initial"},"profileState":{"auth":{},"userOptions":{},"status":"success"}}

How to Work in Scientific Notation on the TI-84 Plus Calculator

By: Jeff McCalla and C. C. Edwards and

Updated: 03-26-2016

From The Book: TI-84 Plus CE Graphing Calculator For Dummies, 3rd Edition

TI-84 Plus CE Graphing Calculator For Dummies, 3rd Edition

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Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10¹² will display as 2.53_E12. You can enter an expression in scientific notation by pressing [2nd][,] to type an _E, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation. See the first screen.

In Normal mode, results that have a power of ten that are more than 9 or less than –3 are automatically expressed in scientific notation. In other words, any number that is more than ten digits or smaller than 0.001 will display in scientific notation. See the second screen.

Fortunately, you can force your calculator to display answers in scientific notation. Press [MODE] and use the arrow keys to choose Sci (short for Scientific mode) and press [ENTER]. You can rest assured that all your answers will be displayed in scientific notation. See the third screen.

It’s not a good idea to leave your calculator in Sci mode. Doing so will not harm your calculator, but seeing every calculation in scientific notation may cause you to lose your mind!

About This Article

This article is from the book:

TI-84 Plus CE Graphing Calculator For Dummies, 3rd Edition ,

About the book author:

Jeff McCalla is a mathematics teacher at St. Mary's Episcopal School in Memphis, TN. He cofounded the TI-Nspire SuperUser group, and received the Presidential Award for Excellence in Science & Mathematics Teaching.

C.C. Edwards is an educator who has presented numerous workshops on using TI calculators.

This article can be found in the category:

Graphing Calculators ,