Most Calculators have an INV key or SHIFT key this one does not,how do I use the INV function on this model?

Re: Sharp EL531WH Calculator

I had the same problem... all you have to do is reset the calculator:

Type:

2ndF

ALPHA

It'll give you a choice Mem (0) or Reset (1)... press 1

Then it'll say Reset? (0)... press 0

And your calculator should be as good as new!

Posted on Jan 17, 2009

Re: Sharp EL531WH Calculator

We are accustomed to see that the inverse of "x" to be designated as a "1/x". If using Sharp EL 531WH the inverse function you will get when you press the yellow key "2ndF" and thereafter the "X^2" key. Good luck.

Posted on Nov 19, 2007

Re: Sharp EL531WH Calculator

Hi i have a peoblem with my calculator where it just stays with the numbers 0.000000000 And i dont know how to get ridd of it if anyone could please help with my Question ..... and maybe with a solution would really help because i have a massive exam tomorrow involving this calculator and i REALLY, REALLY NEED HELP thanks

Bianca

Posted on May 01, 2008

Re: Sharp EL531WH Calculator

There is a p at the side of the numbers how do you get rid of it

Posted on Dec 15, 2007

Re: Sharp EL531WH Calculator

Reset.

Posted on Oct 21, 2008

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 Calculators

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 Calculators

What model Sharp calculator?

Some of them have a key marked "2ndF" which gives you access to the secondary functions such as the inverse trig functions.

Some of them have a key marked "2ndF" which gives you access to the secondary functions such as the inverse trig functions.

Jan 21, 2014 | Sharp Calculators

For the common antilog, use the 10^x function available as the shifted function of the log key. For example, to calculate the common antilog of 2, press SHIFT log 2 =

If you want the natural (base-e) antilog, use e^x available as the shifted function of the ln key.

If you want the natural (base-e) antilog, use e^x available as the shifted function of the ln key.

Aug 05, 2013 | Casio fx-115ES Plus Scientific Calculator

For the arctangent press INV then TAN. The INV key is two up and one left of the "7" key.

May 05, 2013 | Texas Instruments TI-68 Calculator

The INV key that you may find on some scientific calculators has, on the TI 83/84/ Plus calculators, an equivalent key marked [2nd].

On the TI83/84 Plus, each trigonometric function has a second marking [SIN^-1], [COS^-1] or [TAN^-1]. To calculate the inverses of trigonometric functions ( arc sine, arc cosine, arc tangent) you press [2nd] followed by the relevant trigonometric function key For example, [2nd] [SIN] displays sin^-1( on the command line.

Unfortunately the hyperbolic functions and their inverses are only accessed through the CATALOG. You press [2nd][0] to open the CATALOG. Then you scroll down the CATALOG list to reach cosh(, cosh^-(, sinh(, sinh^-1(, tanh(, or tanh^-1(.

To speed the search in the catalog, you use the ALPHA keyboard: To reach cosh(, press[PRGM] and you scroll down from there.

On the TI83/84 Plus, each trigonometric function has a second marking [SIN^-1], [COS^-1] or [TAN^-1]. To calculate the inverses of trigonometric functions ( arc sine, arc cosine, arc tangent) you press [2nd] followed by the relevant trigonometric function key For example, [2nd] [SIN] displays sin^-1( on the command line.

Unfortunately the hyperbolic functions and their inverses are only accessed through the CATALOG. You press [2nd][0] to open the CATALOG. Then you scroll down the CATALOG list to reach cosh(, cosh^-(, sinh(, sinh^-1(, tanh(, or tanh^-1(.

To speed the search in the catalog, you use the ALPHA keyboard: To reach cosh(, press[PRGM] and you scroll down from there.

Feb 27, 2012 | Texas Instruments TI-84 Plus Calculator

Regardless, that is the markings on the SHIFT key on Sharp Calculators. The 2ndF key accesses the functions that are marked on the face of the calculator, not on the top of the keys.

Sep 16, 2011 | Sharp EL-531VB Calculator

The key is marked "x-superscript-negative-one" and located just below the "SHIFT" key.

Sep 01, 2011 | Casio FX-300MS Calculator

Use the INV button to access the secondary functions show above each button. Not very intuitive, unfortunately!

Oct 02, 2010 | Texas Instruments Scientific 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

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