Question about Casio Fx-992s Scientific Calculator

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Look for a key marked [x^-1] or [1/x]. The marking may be on the key or on the face of the calculator. In the latter case you will have to press the SHIFT key first. Before you can calculate the reciprocal of a number the number must be entered.

Posted on Oct 24, 2012

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The inverse common log is the shifted function of the "log" key. The inverse natural log is the shifted function of the "ln" key.

Nov 03, 2013 | Casio FX-115ES Scientific Calculator

That depends on what you want to invert.

If you want the multiplicative inverse (1/x) then it's the "1-superscript-minus-one" key just below the "MATH" key.

If you want the additive inverse then it's the "(-)" key just to the right of the decimal point key.

If you want the inverse of many of the built-in functions (like the trig functions) then press the "2ND" key at the upper-left before pressing the function key.

For the inverse of some functions you'll have to go through the menus.

If you have a particular inverse in mind, please reply to this post and specify exactly what you'd like to invert.

If you want the multiplicative inverse (1/x) then it's the "1-superscript-minus-one" key just below the "MATH" key.

If you want the additive inverse then it's the "(-)" key just to the right of the decimal point key.

If you want the inverse of many of the built-in functions (like the trig functions) then press the "2ND" key at the upper-left before pressing the function key.

For the inverse of some functions you'll have to go through the menus.

If you have a particular inverse in mind, please reply to this post and specify exactly what you'd like to invert.

Jun 25, 2012 | Texas Instruments TI-84 Plus Silver...

It depends on what you want the inverse of. For many functions on the primary keys, you can get the inverse of that function by pressing 2ND and then the key. If you just want the inverse of a number, use the x^-1 key (located in the left column, just under the MATH key).

If you have something else in mind, feel free to reply to this post and specify what you want the inverse of.

If you have something else in mind, feel free to reply to this post and specify what you want the inverse of.

Jun 04, 2012 | Texas Instruments TI-83 Plus Calculator

The antilog ( Oh I hate this word) is the inverse function of the log. If you are talking about base 10 log (common logarithms) the antilog is the power of 10 function.( 10^x) If you are talking about the natural log (ln) the antilog is the exponential function e^x.

On most calculators, a mathematical function and its inverse share the same physical key. One function is marked on the key and the inverse on the faceplate. One is accessed directly by pressing the marked key, and its inverse is accessed by pressing 2ndF, 2nd of SHIFT followed by the key.

I hope it helps you find the appropriate key on your brand of calculator (whatever it might be.)

On most calculators, a mathematical function and its inverse share the same physical key. One function is marked on the key and the inverse on the faceplate. One is accessed directly by pressing the marked key, and its inverse is accessed by pressing 2ndF, 2nd of SHIFT followed by the key.

I hope it helps you find the appropriate key on your brand of calculator (whatever it might be.)

Mar 27, 2012 | Office Equipment & Supplies

It is much more enlightning to tell us what you want to do rather than talk about something that does not exist. And one thing that does not mean anything is that ellusive INVERSE key that everyone and his dog is looking for.

The additive inverse of a number a is its opposite (-a). The key to use is the change key (-).

The multiplicative inverse of non-zero number a is its reciprocal 1/a

The inverse of the natural log (LN) function is the EXPONENTIAL function e^(x). On most calculators if one function is accessed diectly (the marking is on the key), its inverse is accessed by pressing [SHIF] (Casio, or [2nd] (TI) or [2ndF] (Sharp).

The inverse of the function raise 10 to a power [10^x] is [LOG]

Similarly, the inverse of the sine function SIN is the arcsine [sin^-1]. To access the latter, it you press [2nd][SIN]. The same is true for arcosine [2nd][COS], and arctangent [2nd][TAN]

The inverse of the square functions [x^2] is the square root function [2nd][x^2]

Inverse of x^3 is cubic root

This is just a quick overview.

The additive inverse of a number a is its opposite (-a). The key to use is the change key (-).

The multiplicative inverse of non-zero number a is its reciprocal 1/a

The inverse of the natural log (LN) function is the EXPONENTIAL function e^(x). On most calculators if one function is accessed diectly (the marking is on the key), its inverse is accessed by pressing [SHIF] (Casio, or [2nd] (TI) or [2ndF] (Sharp).

The inverse of the function raise 10 to a power [10^x] is [LOG]

Similarly, the inverse of the sine function SIN is the arcsine [sin^-1]. To access the latter, it you press [2nd][SIN]. The same is true for arcosine [2nd][COS], and arctangent [2nd][TAN]

The inverse of the square functions [x^2] is the square root function [2nd][x^2]

Inverse of x^3 is cubic root

This is just a quick overview.

Feb 16, 2012 | Texas Instruments TI-84 Plus Silver...

For the reciprocal of a number, enter the number then press the key marked with an x^-1. You might have to use the SHIFT key first. For inverse of trigonometric functions use the SHIFT key followed by the function name. The inverse of LN is e^x. The inverse of log is 10^x. To calculate the inverse of a matrix, enter the name of the (already created) square matrix then press x^-1.

Jan 09, 2012 | Casio FX-115ES Scientific Calculator

The inverse of what&? Each inverse function uses the same key (shifted) as its direct function. For the reciprocal key look for x^-1 or [1/X]

Sep 15, 2011 | Texas Instruments TI-36 X Solar Calculator

Hi Robert9004x2,

If you want to examine the matrix you want to inverse and, the one that is given you trouble pressing [2nd] [MATRX]. Then stroll and, select the one you want to look at by pressing, [ENTER]. You'll have to press, [ENTER] again and, matrix should display at the Home screen. At the Home when you get to them your looking for the ones that are not square, like 2 by2 or 4 by 4 etc. You might need to re-edit this matrix so, that it is square.

Your trying to invert a matrix that isn't square you might be using using the proper key sequence to create a inverse matrix. Here what the correct inverse matrix look on the Ti 84 Plus Home screen.

**And pictured below is a Matrix is being inverted by using the ^ and the -1 keys. Which to inverse a Matrix on the Ti 84 Plus you have to use the [x^-1] key.**

**This is not the proper way to inverse a Matrix on the Ti 84 Plus. The proper way to inverse of a matrix, the [x-1] key must be used, instead of pressing the sequence [^][-][1]. The [x-1] key is the official inverse key and is located right under the Math key. It is also the same key that you use to get to the matrix menus. The [^][-][1] sequence is only raising the matrix to the -1 power and, will cause an error too. If you need any more help, just post a comment and, I'll respond quickly.**

Jan 18, 2011 | Texas Instruments TI-84 Plus Calculator

The x^-1 key is in the leftmost column of the keyboard, below the MATH key.

If you want the inverse trig functions, press 2ND then the trig function key.

If you want the inverse trig functions, press 2ND then the trig function key.

Jan 13, 2011 | Texas Instruments TI-84 Plus Calculator

The inverse key is marked "1/x" (second key on the third row). The natural logarithm key is marked "LN" (fourth key on the top row).

Apr 13, 2010 | Texas Instruments TI-36 X Solar Calculator

Jan 16, 2014 | Casio Fx-992s Scientific Calculator

Apr 12, 2013 | Casio Fx-992s Scientific Calculator

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