Instructions for the Casio FX-83ES

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Instructions for the Casio FX-83ES
The Casio FX-83ES is a scientific calculator that can generate number tables. (calculator image by Randy McKown from Fotolia.com)

Operating a statistical calculator, such as the Casio FX-83ES, without clear instruction can be difficult and confusing. The FX-83ES can display general and statistical calculations and can generate number tables based on your entered expressions. The calculator can display equations in "Math" mode, which is set out like any handwritten mathematical equation, occupying two lines where needed, to offer a familiar work area. New users should be happy to note that many functions of the FX-83ES are operated by a button with a simple pictorial representation of the desired symbol.

Skill level:
Easy

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Instructions

  1. 1

    Remove the hard cover from the front of the FX-83ES and slide it around, so the back of the calculator is covered by the case. Turn the calculator "On." The button is oval and located in the top right-hand corner of the calculator's front display.

  2. 2

    Press the "Mode" button. This is located directly to the left of the "On" button and brings up the "Mode" menu, where you can select the modes "Comp" (for general calculations), "Statistic or Regression" or "Table." Select "Comp" by pressing the number "1" on the numb-pad.

  3. 3

    Enter your desired calculation into the empty space. This calculation can be anything you want, and you can use any of the more advanced features, which are generally accessed through using the "Shift" or "Alpha" button in combination with a special key, or simply through one of the special function keys itself. For example, there's a function key to input a fraction, such as 2/3, into the FS-83ES.

  4. 4

    Press the "Fraction" special function button, located directly beneath the "Abs" button towards the top left-hand corner. A centre line appears at the cursor's location, with the numerator field highlighted and ready to use. Enter a number to appear in the numerator field and then press "Down" on the four way navigational key to move to the denominator field to enter a number.

  5. 5

    Use the four-way navigation key to scroll back if you've made a mistake. The four-way navigation key is a circular button located in the centre of the calculator on the top row of controls. If you are using "Math" mode, you will be deleting in "Insert" mode, shown by a flashing vertical cursor. In "Linear" mode, you may be deleting in "Overwrite" mode. "Overwrite" mode is shown by a horizontal cursor flashing at the bottom of the unit's field.

  6. 6

    Move your cursor to the space to the right of the number you wish to delete in "Math" mode. Move the horizontal cursor underneath the number to be deleted in "Linear" mode. Press the "Delete" button to delete the desired character. The "Overwrite" deleting mode allows for quicker alteration of existing numbers, and the "Insert" mode makes it easy to add in a missing digit or command. The "Delete" button is located directly to the right of the number "9."

Tips and warnings

  • Holding the "Shift" or "Alpha" button allows you to access the commands written in the chosen button's matching colour that are printed above the command buttons. These keys work like the "Shift" key on a computer, and the "Alpha" key allows the manufaturer to cram even more functionality into the same amount of buttons.

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