Question about Sharp EL-531VB Calculator

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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].

Posted on Aug 24, 2010

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Posted on Jan 02, 2017

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The INV button is replaced by the SHIFT button, which gives access to the functions in yellow/orange text above the buttons.

Feb 08, 2016 | Casio Office Equipment & Supplies

The inverse of log functions are power functions.

Inv of ln is exponential (e^x)

Inv of log in base 10 is 10^(x)

A function and its inverse usually share the same physical key. One function is accessed directly, the other by using the SHIFT or 2ndF key.

Inv of ln is exponential (e^x)

Inv of log in base 10 is 10^(x)

A function and its inverse usually share the same physical key. One function is accessed directly, the other by using the SHIFT or 2ndF key.

Aug 18, 2014 | Casio Office Equipment & Supplies

The inverse of log functions are power functions.

Inv of ln is exponential (e^x)

Inv of log in base 10 is 10^(x)

A function and its inverse usually share the same physical key. One function is accessed directly, the other by using the SHIFT or 2ndF key.

Inv of ln is exponential (e^x)

Inv of log in base 10 is 10^(x)

A function and its inverse usually share the same physical key. One function is accessed directly, the other by using the SHIFT or 2ndF key.

Aug 18, 2014 | Casio Office Equipment & Supplies

Clear the calculator.

Press [SHIFT][9] (CLR) or [SHIFT][MODE] (Setup) 8:Norm and choose Norm1 or Norm 2. Select the number of digits.

Press [SHIFT][9] (CLR) or [SHIFT][MODE] (Setup) 8:Norm and choose Norm1 or Norm 2. Select the number of digits.

Dec 11, 2013 | Casio FX83ES Scientific Calculator

Follow the instructions on page E-5 of this manual.

Jan 15, 2013 | Casio FX83ES Scientific Calculator

It takes a LR44 or equivalent. See page E-4 of this manual.

Jan 15, 2013 | Casio FX83ES Scientific Calculator

You will find it like this...

( - )

( - )

Apr 28, 2011 | Casio FX83ES Scientific Calculator

Hi,

you should try the S=D button right above the DEL button.

you should try the S=D button right above the DEL button.

Mar 15, 2011 | Casio FX83ES Scientific Calculator

The keystrokes for a Casio FX83ES for (1.1)10 is [(] [1] [.] [1] [)] [x] [1] [0] which should give you 11.

Mar 11, 2011 | Casio FX83ES Scientific Calculator

The manual for your calculator can be found here: http://support.casio.com/pdf/004/fx-82ES_83ES.etc_Eng.pdf

To input a sexagesimal value [this is another word for Degrees/Minutes/Seconds], you need to follow the instructions on page E-21 of the manual.

To input a sexagesimal value [this is another word for Degrees/Minutes/Seconds], you need to follow the instructions on page E-21 of the manual.

- Type in the degrees
- Press the "degrees" button. This is located two buttons above the "8" button and looks like the degrees symbol and some commas
- Type in the minutes
- Press the "degrees" button again.

Mar 02, 2011 | Casio FX83ES Scientific Calculator

Apr 24, 2014 | Sharp EL-531VB Calculator

Apr 24, 2014 | Sharp EL-531VB Calculator

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