# Essential Beginner Tutorial for a Casio Calculator

If you are new to using a Casio natural display calculator such as the fx83GTPLUS or fx85GTPLUS, then this video is a great place to start learning how to use all the features and functions of the calculator. One of the huge advantages of a natural or *textbook* display is that fractions appear similar to as they appear in a textbook, or as you would write them with the numerator above the denominator. This makes it nice and clear to those inputting a calculation involving fractions what number is on the top and on the bottom, a problem encounter with a linear display all on one line.

Additionally the video explores how convenient the ANS function is in multi stage calculations. You can use an answer from a previous calculation in your next one. This is helpful for completing more complex calculations one step at a time. Brackets or parentheses are also explored, proving a useful way of completing an addition or subtraction before a multiply or divide. The natural display comes into use again when completing calculations with powers or exponents and roots, raising the index number into superscript, doing away with the need for the **^** symbol to indicate a power.

The video also features the Delete or DEL function, which operates like a backspace on a computer. If you make an input error, it is very tempting to press AC and clear your whole calculation. The DEL key enables you to delete and input value or function and this can be combined with the navigation key to go back and delete anything. Just move your cursor to a position just after what you want to delete and press DEL.

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