Question about Texas Instruments TI-89 Calculator

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Where is the log button on the ti-89 - Texas Instruments TI-89 Calculator

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Green 7

Posted on Mar 08, 2009

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If you type in the yellow diamond button then the number 7 log will show up ! so glad i just found this haha

Posted on Dec 01, 2009

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If you press the Alpha key twice and type in using the letters written above the keys and spell out "log()" now you can use the log function without searching for the key, then just enter whatever value you have for the function into the parentheses.

You can use the Alpha lock technique for any function in the TI's catalog
ie
nderiv()
csc()
sec()
etc.

Posted on Mar 11, 2009

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I don't think there is one but if you type log(x) on the home screen that will have the same functionality.

Posted on Dec 31, 2008

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SOURCE: How do I calculate the inverse log on the TI-89?

Hello,
The wrong terminology is playing tricks on you.

  1. If you are talking about the natural logarithms, the inverse function of the natural log is the exponential: ln(e^(x))=e^(ln(x)) = x
  2. If you are talking about the common logarithms (log in base 10) to find the antilog of a number, say x, you raise 10 to the power of x.
Exemple: What is the antilog ( that is the name, not inverse log) of 0.345?
Answer; antilog of 0.345 = 10^(0.345) =2.21309471

Look at the last two commands on the screen capture.
393588e.jpg

Hope it helps
Thanks for using FixYa

Posted on Nov 20, 2009

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SOURCE: How I can get the log base 10 number in a TI 89

"♦" "7" will give you log base 10 for the texas instuments TI-89 Titanium

Posted on Jan 06, 2010

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Cant find ! button


There is no such thing as a TI89 Plus Silver Edition.

If you mean the TI-89 or TI-89 Titanium, press diamond / (the diamond key below the 2ND key, then the divide key).

If you mean the TI-83 Plus Silver Edition or the TI-84 Plus Silver Edition, press MATH left-arrow 4 .

Dec 15, 2013 | Texas Instruments TI-84 Plus Silver...

2 Answers

My ti-89 titanium won't graph logarithms (y1=22log(10)x)


The graph of y=22log(10) is a straight line, though it should go through (0,0) and (1,22). Log(10) is a constant 1, so the function is simply y=22x .

If you want "twenty-two times log-base-ten of x", write it as 22*log(x) .

Aug 11, 2012 | Texas Instruments TI-89 Calculator

1 Answer

How do you enter the log base on the TI 89 Titanium?


If you want to take the log base b of x, enter it as log(x, b).

To get log, you can either type it in or press diamond 7.

Nov 23, 2010 | Texas Instruments TI-89 Calculator

1 Answer

How ti type log in ti 89?


You can download the manual from: http://education.ti.com/downloads/guidebooks/graphing/89ti/TI-89_Guidebook_EN.pdf
On page 79, you will find:
Find log (x,b). You can enter "log" on the entry line by typing LOG on the keyboard, or by pressing the key with the diamond and then 7.
Press [diamond] 7 X , [alpha] b ) [ENTER]

Nov 11, 2010 | Texas Instruments TI-89 Calculator

1 Answer

I have a ti-89, but my professor is using a ti-83. the ti-83 has a "stat" button, what would that be on the ti-89?


I meant what are you trying to do? There is not a stat button (that I know of) on the TI 89, but I can guarantee you that there is a way to do what you want to.

Oct 12, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Where is the log button on TI-89 titanium?


The natural log is marked LN, the 2ND function of the X key (just below HOME on the leftmost column of the keyboard).

The common log is not marked on the keyboard but can be accessed by pressing diamond 7. You can also access it via the CATALOG and/or spell it out.

Sep 20, 2010 | Texas Instruments TI-89 Calculator

3 Answers

How to find cubed root on a TI-89 calculator


To find the cubed root (or any root) of a number, use the root() function.

If you want the cubed root of 125, you would type:

root(125,3)

Mar 06, 2009 | Texas Instruments TI-86 Calculator

3 Answers

How I can get the log base 10 number in a TI 89


"♦" "7" will give you log base 10 for the texas instuments TI-89 Titanium

Feb 20, 2009 | Texas Instruments TI-89 Calculator

1 Answer

Log & reciprocal functions


There is no log (base 10) button on a TI-89. It's buried in the CATALOG as log(. As a shortcut, you can do ln(#)/ln(base), where # and base are replaced with what you want. For the inverse of a log, do the base raised to the part on the other side of the equals sign. So, log(x) = 2 would become 10^2 = x.

Jul 16, 2008 | Texas Instruments TI-89 Calculator

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