Question about Sharp EL-520WBBK Calculator

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Use the [Y^x] key with exponent -1

For a number **a** that is not 0

**1/a=a^(-1)**

Posted on Jan 26, 2014

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It's the second function of the "2" key, marked "x-superscript-negative-one".

Posted on May 07, 2013

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Posted on Jan 02, 2017

Use the key x-1.

Example: reciprocal of 5: Press 5, then key x-1, then =

Example: reciprocal of 5: Press 5, then key x-1, then =

Oct 12, 2017 | The Office Equipment & Supplies

To calculate the inverse of a number one does as follows.

Non-scientific calculator: enter 1/ number the =

Scientific calculator: use the reciprocal key marked [x^-1] or [1/x]

The key, if it exists may be accessed directly (by pressing it), or after pressing the [SHIFT], [2nd ] or [2ndF] key.**For the reciprocal key the number must already appear in the display screen.**

Non-scientific calculator: enter 1/ number the =

Scientific calculator: use the reciprocal key marked [x^-1] or [1/x]

The key, if it exists may be accessed directly (by pressing it), or after pressing the [SHIFT], [2nd ] or [2ndF] key.

Sep 27, 2014 | Office Equipment & Supplies

Enter the number and press the = sign.

With the number displayed, press the power key (marked as [X^y], [Y^x] or [^]) followed by exponent -1.

OR while the number is stored in Ans memory, enter 1 / Ans.

Some calculators have a special key for the reciprocal. It is marked as [x^-1]. By pressing the reciprocal key while number is displayed, you calculate its reciprocal.

With the number displayed, press the power key (marked as [X^y], [Y^x] or [^]) followed by exponent -1.

OR while the number is stored in Ans memory, enter 1 / Ans.

Some calculators have a special key for the reciprocal. It is marked as [x^-1]. By pressing the reciprocal key while number is displayed, you calculate its reciprocal.

Feb 05, 2014 | Sharp el-531x scientific calculator

Use the 1/x key or the general power key x^-1.

By hand 0.6=3/5

The reciprocal of 3/5 is 5/3

By hand 0.6=3/5

The reciprocal of 3/5 is 5/3

Jan 29, 2014 | Office Equipment & Supplies

Instead of dividing, multiply by the reciprocal. Use the 1/x or x^-1 key.

But you can also buy a new calculator.

But you can also buy a new calculator.

Nov 19, 2013 | Sharp el-531x scientific calculator

(1/10)^2=0.01

To calculate the inverse just invert the fraction 1/10 becomes 10 and you calculate 10^2=100 =1/0.01.

On the Sharps, look for a key marked 1/x or x^-1. If the marking is on the key you just press it while the number whose reciprocal you want is displayed. If the marking is on the face of the calculator you will have to press 2nd F before the key.

To calculate the inverse just invert the fraction 1/10 becomes 10 and you calculate 10^2=100 =1/0.01.

On the Sharps, look for a key marked 1/x or x^-1. If the marking is on the key you just press it while the number whose reciprocal you want is displayed. If the marking is on the face of the calculator you will have to press 2nd F before the key.

Mar 01, 2013 | Sharp EL-738 Scientific Calculator

There is a key on the left column of keys, below the MATH key and above the x^2 key. It is marked with an x raised to power of -1.

It computes the reciprocal of the number displayed.

It computes the reciprocal of the number displayed.

Aug 25, 2010 | Texas Instruments TI-84 Plus Calculator

I depends on what you mean by INV.

On some Chinese (AUREX, Staples) calculators the second function key is marked as INV. If that is the key you have in mind, on Casios it is the [SHIFT] key. On Sharps it is marked as [2ndF]

If you have in mind the multiplicative inverse (the reciprocal) then your calculator has such a key and it is marked [x^-1]. It the key represented on the following table at the intersection of the 2nd column and the 9th line (RECIPROCAL)

If you are thinking about the inverse of functions, then know that each function shares the same physical key as its inverse. For example to access the arcsine (the function inverse of sine) you press the [SHIFT] key before [SIN]. On the calculator you will notice that near the [SIN] key and to its left there is [SIN^-1].

On some Chinese (AUREX, Staples) calculators the second function key is marked as INV. If that is the key you have in mind, on Casios it is the [SHIFT] key. On Sharps it is marked as [2ndF]

If you have in mind the multiplicative inverse (the reciprocal) then your calculator has such a key and it is marked [x^-1]. It the key represented on the following table at the intersection of the 2nd column and the 9th line (RECIPROCAL)

If you are thinking about the inverse of functions, then know that each function shares the same physical key as its inverse. For example to access the arcsine (the function inverse of sine) you press the [SHIFT] key before [SIN]. On the calculator you will notice that near the [SIN] key and to its left there is [SIN^-1].

Aug 24, 2010 | Sharp EL-531VB Calculator

It does. For instance, to get the reciprocal of 4, enter the following sequence:
4 [1/x] (this last key to be found third row down, second black key in). The decimal 0.25 will appear as the result. Convert this, if you want, to the fraction 1/4 by pressing the yellow function key [2nd], then {F<>D] located bottom, far left.
Hope that's what you wanted!

Sep 28, 2007 | Texas Instruments TI-30XA Calculator

Apr 15, 2014 | Sharp EL-520WBBK Calculator

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Aug 29, 2013 | Sharp EL-520WBBK Calculator

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