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Calculators
A calculator is a hand-held inexpensive electronic device used to perform the operations of arithmetic. The simplest calculators can only do addition, subtraction, multiplication, and division, while scientific calculators can handle exponential operations, and trigonometric and logarithmic functions.
1,648 Questions
The major difference between a calculator and a computer is?
This is so silly. A calculator is something that gives you answers to a math question (ex. 2+2=4), and a computer has the internet, a software to type, and games. Everything a calculator doesn't have.
Do you have to have a calculator to do algrebra?
Calculators are very useful for algebra since often numbers will have more than two or three decimals, but they are not crucially needed. It is usually possible to simply not calculate at all and just work with the values as they are. This might lead to final equations like x = (6/21 + lg 4)/3, though.
Can you use calculator in online exams?
That would probably depend on the exam - and the purpose of the exam. Check the rules for any specific exam you want to take.
For example, the CCNA exam (in computer networking) forbids the use of calculators; in fact, the testing-taking software won't let the student open additional programs (like a Windows calculator), and the exam is supervised. Actually this isn't exactly an "online" exam, since the entire exam is downloaded to the testing center machine before the date of the exam; but this may give you the general idea.
When was the first hand held calculator made?
Blaise Pascal, France, 1642: invented the mechanical calculator. William Seward Burroughs in 1885 in New York, USA, constructed his first adding machine; though it proved commercially impractical, he patented a practical model in 1892
How do you open calculator from command prompt on mac?
Here are the steps:
# Click 'Start' (the menu list will appear) # Choose 'Run...' (a small window appears on the lower left part of the screen) # Type the command, cmd (You will be redirected to a new window (DOS prompt) # Then, type the command, calc (the calculator window appears on screen)
How do you write mixed fractions on a TI 30X IIS calculator?
To enter mixed numbers, use addition. For example, to enter 23/4 enter
(2+3/4)
Use parenthesis around it so that the calculator knows that it is all part of one value.
What is the number of work hours in a year?
365 days in a year
24 hours in a day
24 x 365 = 8760 hours in a year
8784 hours in a leap year
How much are graphing calculators?
A scientific calculator is a type of electronic calculator, usually but not always handheld, designed to calculate problems in science, engineering, and mathematics. They have almost completely replaced slide rules in almost all traditional applications, and are widely used in both education and professional settings.
In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs for the device. There is also some overlap with the financial calculator market.
Scientific calculators are used widely in any situation where quick access to certain mathematical functions is needed, especially those such as trigonometric functions that were once traditionally looked up in tables; they are also used in situations requiring back-of-the-envelope calculations of very large numbers, as in some aspects of astronomy, physics, and chemistry.
They are very often required for math classes from the junior high school level through college, and are generally either permitted or required on many standardized tests covering math and science subjects; as a result, many are sold into educational markets to cover this demand, and some high-end models include features making it easier to translate the problem on a textbook page into calculator input, from allowing explicit operator precedence using parentheses to providing a method for the user to enter an entire problem in as it is written on the page using simple formatting tools.
The first scientific calculator that included all of the basic features above was the programmable Hewlett-Packard HP-9100A,[1] released in 1968, though the Wang LOCI-2 and the Mathatronics Mathatron had some features later identified with scientific calculator designs. The HP-9100 series was built entirely from discrete transistor logic with no integrated circuits, and was one of the first uses of the CORDIC algorithm for trigonometric computation in a personal computing device, as well as the first calculator based on reverse Polish notation entry. HP became closely identified with RPN calculators from then on, and even today some of their high-end calculators (particularly the long-lived HP-12C financial calculator and the HP-48 series of graphing calculators) still offer RPN as their default input mode due to having garnered a very large following.
The HP-35, introduced on February 1, 1972, was Hewlett-Packard's first pocket calculator and the world's first handheld scientific calculator.[2] Like some of HP's desktop calculators it used reverse Polish notation. Introduced at US$395, the HP-35 was available from 1972 to 1975. HP continues to develop and market high-end scientific calculators, like the HP-35s and HP-49 series, which have been favored by scientists and engineers, in labs, offices, as well as in the field. In 1974, HP had the HP-65, which could be programmable.[3]
Texas Instruments, after the introduction of several units with scientific notation, came out with a handheld scientific calculator on January 15, 1974 in the form of the SR-50.[4] TI continues to be a major player in the calculator market, with their long-running TI-30 series being one of the most widely used scientific calculators in classrooms.
Casio and Sharp have also been major players, with Casio's FX series (beginning with the Casio FX-1 in 1972[5]) being a very common brand, used particularly in schools. Casio is also the #3[citation needed] player in the graphing calculator market, and was the first company to produce one (Casio fx-7000G).
What apps come preloaded on the TI-84 Plus Silver Edition?
- ALG1CH5: An app with algebra questions
- ALG1PRT1: An app with algebra questions
- App4Math (ZoomMath or Zoom App4Math): An app that makes math easier to read (such as real square root symbols with the numbers inside them)
- AreaForm (Area Formulas): An app with questions and information about areas of different shapes
- CabriJr (Cabri Junior): An app that allows the user to draw geometric shapes
- CelSheet (CellSheet): A spreadsheet, sort of like excel
- Conics: An app with formulas for conic sections (circles, ellipses, hyperbolas, and parabolas)
- CSheetDe: Spreadsheet app in German
- CSheetEs: Spreadsheet app in Spanish
- CSheetFr: Spreadsheet app in French
- CtlgHelp (Catalog Help): An app that will show the syntax (what to type, basically), for the different functions on the calculator
- Dansk: An app that will make the calculator "speak Danish"
- Deutsch: An app that will make the calculator "speak German"
- EasyData: An app that helps with transferring data to and from the calculator
Español: An app that makes the calculator "speak Spanish"
Français: An app that makes the calculator "speak French"
FunSci (Fundamental Topics in Science): An app with basic information about science and a link to SciTools
Inequalz (Inequality Graphing): An app that allows the calculator to graph inequalities
LearnChk (LearningCheck): An app that allows for the creation of test forms on the calculator, more or less
- Nederlan (Nederlands): An app that makes the calculator "speak Dutch"
OrganEsp: Organizer in Spanish
OrganFra: Organizer in French
Organize (Organizer): Organizer with address book, calendar, and task list
Perioden: Periodic table in German
Periodic: Periodic Table
PlySmlt2: Polynomail root finder and simultaneous equation solver
PuzzPack (Puzzle Pack): An app with four puzzle games, including "Block Dude"
Périod: Periodic table in French
SciTools (Science Tools): An app with a sig-fig calculator, unit converter, data/graphs wizard, and vector calculator
SciToolsEs: Science Tools in Spanish
SciToolsFr: Science Tools in French
StCrdDeu: StudyCards in German
StCrdEsp: StudyCards in Spanish
StCrdFra: StudyCards in French
StudyCrd (StudyCards): Allows viewing of electronic flash cards created with the PC software Study Cardsâ„¢ Creator Software
Svenska: makes the calculator "speak Swedish"
Tabla P: Periodic table in Spanish
Transfrm (Transformation Graphing): With this app turned on, variables other that X in equations (which are treated as constants by the TI-84 Plus Silver) can be set directly from the graph screen
A modern electronic calculator is a microcomputer with a single unchangeable program stored in ROM. This program contains the keyboard and display device drivers and the algorithms to performs all the calculations that the calculator can do.
Some calculator manufacturers produce series of calculators using identical hardware and cases, the only differences between models in the series is: the program in the ROM, the keytop labels, and the model number printed on the case.
How do you use integration on a TI-84 Plus Silver Edition?
Press MATH then 9 (fnInt() enter the function comma enter the variable comma enter the lower bound comma enter the upper bound
Who produced the first mechanical calculator in 1623?
That would be an Abacus.
Depends if you mean the electronic calculator or not? Before we had calculators we had slide rulers. In 1632, the circular and rectangular sliderule was invented by W. Oughtred. William Seward Burroughs invented the first practical adding and listing machine. Burroughs submitted a patent application in 1885 for his 'Calculating Machine' and the patent was awarded in 1888.
CE stands for "Clear Entry," which means that when you press it, you only remove the value you most recently typed into the calculator. For example, if you wanted to do 8 * 64 +30 but you type 8 * 64 + 6, press this and then you can just type 30 and fix the problem.
How do you add a slash at the calculator?
By clicking the slash button just like you would on any other computer.
Can you use a calculator on the hspt?
No.
Calculators cannot be used.
In fact, some schools or testing centers don't let you bring anything but a #2 pencil.
Strictness varies but many places will confiscate a calculator if it is brought.
Your better off not bringing one at all.
If you have further questions you can go to the official HSPT scholastic website ( www.scholastictesting.com/HSPT).
How to you use matrix in scientific calculator?
i am using a ti-84 (ti 83s work the same way and most calculators should be fairly similar) first hit the matrix button for me that is second, x^-1 then move over to edit where you can choose matrices to edit you will first need to enter how large your matrix is and then it has you enter your numbers, you can move from number to number by enter or the arrow keys. After you have your matrices ready you can do calculations with them my going to matrix again and under names choosing the matrix you wish to use
Are there any other websites like the love calculator?
Some websites that offer love tests are LoveCraft, LoveMatch, Lovecalculator, Lovetest, Quizrocket's love test section, Seventeen's love test section and Cosmopolitan's love quizzes.
How do solar calculators work?
By the battery in the caculator
It works by a solar cell when photons hit a cell it exites a particle called electrons which allow it to flow through in between layer p which stands for a positive energy and n for negative charge that creates a field of electricity.
Who invented leibnitz's calculator?
leibnitz's calculator is simply an improvised version of the adding machine. this machine could perform multiplication and division as well. ( multiplication through repeated addition and division through repeated subtraction). talking about the history of this machine it was invented by a German mathematician Gottfried Leibnitz. It used a stepped cylinder with nine teeth for varying lengths instead of wheels used by pascal.
For a better idea refer to a picture of Leibnitz's calculator:
http://images.Google.co.in/images?hl=en&q=leibnitz%27s+calculator&btnG=Search+Images&gbv=2&aq=f&oq=
(please press ctrl and then click on the above link to view the picture.) tell me if the link does not work.
How do you write an exponent on a calculator?
enter a value "x", press the "^" key, then enter the value you want to raise "x" to, "y". the calculator should show X^Y, for whatever you substituted. hit enter.
