Question about Texas Instruments TI-84 Plus Calculator

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Hi guys, my calculator key is jammed, like physically. how can i receive any warranty for this? or better yet, how can i fix this jammed key?

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For any warranty claims read the documentation that shipped with you calculator. If you cannot find it, you can contact Texas Instruments at
If key is stuck you may want to use tweezers to pull it up gently.

Posted on Jan 31, 2010

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Posted on Jan 02, 2017

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When press ln it is showing up as log, how do I fix this issue?

I have a cheap calculator two keys of which have been assembleo write myself a small note reminding me of the switch. The note I pasted on the inside of the cover and when I open the calculator I see the note and know what to do.
If the calculator is still under warranty have it replaced or fixed. If it is no longer under warranty and the problem is with one or two keys you may want to live with it. If not get another calculator.

Apr 17, 2012 | Casio fx-300ES Calculator

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Hi, how do i calculate log^-1(-2) on my ti-30xa? thank u.

The inverse of the log function is the power function.
For log in base 10 that inverse is 10 to a power of
More generally, let b be the base of the logarithm. If y=log_b (x) then x=b^y
For your case log=log_10, to calculate the inverse you perform 10^(-2)=0.01=1/100
On calculators the log in base 10 and its inverse share the same physical key. One is accessed directly, the other is the shifted key function.

Sep 09, 2011 | Texas Instruments TI-30XA Calculator

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Hi, how do i calculate log^-1 on my ti-30xa? for example, in order to calculate log^-1(-2), what do i do? thank you.

The inverse of the common log function is the power function with base 10 (10^). It shares the same physical key as the log. You acees the function by pressing [2nd] [log]

Sep 09, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

How do I work the anti log on TI-30X 2s? Where are the buttons?

What you call the antilog is also known as as the power function. More specifically, the inverse of a decimal log is the function 10 to a power, (10^x) It shares the same physical key as the log function. If the calculator has a key marked [LOG] you have to press the [2nd or SHIFT] key followed by the [LOG] key to activate the anti-log.

For natural log (logarithms in base e) the antilog is the exponential function (e^x). It shares the same physical key as the [LN] function.

May 09, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

I have a ti 84 plus silver edition calculator and the screen went black. how do i fix this

There are two possibilities:

1) Your screen may have been physically damaged. This is not repairable.

2) The second possibility is the screen contrast is turned too high. You can adjust the screen contrast by pressing either 2nd and then the up and down keys or Alpha and the up and down keys, depending on your model. You will need to do this repeatedly to notice a change.

Feb 08, 2011 | Texas Instruments TI-84 Plus Silver...

1 Answer

Sir,as i know about fx-991ms calculator,it contains above 400 functions.but my calculator fx-991ms calculator contains only 240 functions.sir pls inform me why this?

How did you arrive at this lowly number of 240?. Did you actually count them? Did you use them all? Some may be accessible through a specific sequence of key presses and for that you will have to read the whole manual.
Your calculator contains physical constants (and there is bunch of them). It can do conversions between units and back. Each physical unit and each conversion in one way is a function.

If your calculator is defective you will have better luck detecting the defect by thinking about a function that you want and verify if your calculator has it.

To distinguish themselves from competitors manufacturers make many claims and the claimed number of functions is one such point they try to emphasize with the consumers. No one can easily verify the claim unless one knows what the manufacturer calls a function. (remember these are not mathematical functions but functionalities (capabilities). Having two line display may be one of them and so is the replay.

Sep 05, 2010 | Computers & Internet

2 Answers

How to antilog with TI-84 PLUS

The antilogarithm of natural log [LN] is the exponential [e^x]. It shares the same physical key as [LN] : To access it press [SHIFT][LN]
The antilogarith of the common logarithm (LOG] is [10^x]. It shares the same physical key as the [LOG]: To access it press [SHIFT][LOG]

Aug 28, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

I need an inverse log button on the casio calculator 9750GII.... does it have one??? I know how to do log, but can't find the inverse.

The log base 10 function has an inverse: It is the 10 ^x function. It shares the same physical key with the decimal log. Use [SHIFT][LOG].
The natural log (LN) has an inverse alos and that it the exponentila function e^x. It shares the same physical key with it.

Jul 20, 2010 | Casio FX-9750GPlus Calculator

1 Answer

About physical addressing

you should know assembly langauge better and from the segment register you can read the higher order bit and the lower order bits which is logical address from those you can calculate by combining them

Jul 18, 2008 | Intel Motherboard

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