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How to calculate the antilog please - Texas Instruments TI-83 Plus Calculator

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The antilog is the inverse of the logarithm. Not too surprisingly, it's invoked as the 2ND shift of the appropriate log key.

For the common antilog, use the 10^x key (2ND LOG). For example, 2ND LOG 3 ENTER gives 1000 as the common antilog of 3.

For the natural antilog, use the e^x key (2ND LN). For example, 2ND LN 3 ENTER gives 20.08553692 as the natural antilog of 3.

Posted on Jan 23, 2010

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SOURCE: Calulating Antilogs

the antilog of .52

Posted on Mar 22, 2008

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SOURCE: Find the antilog on the TI-84 Plus for finding pH in chemistry problems

I'm not specifically familiar with the TI83 or TI84 but I've used a lot of TI calculators in my time, so I'll give it a try. If your trying to find the antilog of a number in base 10 enter the number and hit the (10 to the X) button. If you're trying to find the antilog of a number in in base e (natural log), enter the number and hit the (e to the X) button.

Posted on May 29, 2009

SOURCE: i can't find an antilog function in my calculator .

Anti log will be shown as 10^x (10 raised to power x) For natural log it's e^x I think it's shift > log

Posted on Jun 03, 2009

  • 7993 Answers

SOURCE: How to use antilog?

Hello,

As you well know the pH is the negative of the log in base 10 of the H+/H3O+ ion concentration. If we use [H+] to represent that concentration, then pH=-log[H+].
To obtain the [H+] you need to calculate the antilog. You write the definition in the form log[H+] =-pH and then calculate 10 to the power of each member. The equality remains valid as both members are treated similarly. Thus
10^( log[H+] ) = 10^(-pH)
Since raising 10 to a power is the inverse function of taking the log in base 10, 10^(log(x))=log(10^(x)) = x (they are inverse of one another), you are left with

[H+]=10^(-pH)

Your calculator has a function [10 to x] accessed by pressing the [2nd] function key. To use it you must enter the negative value of the pH, press the [2nd] function key then the [10 to x], then the = key to get the result (concentration)
Exemple: let the pH=5.5, what is the H+ concentration?
With [(-)] being the change sign key, then
[H+]:[ (-) ] 5.5 [2nd][10 to x] [=]
The result is 0.000003162 or 3.16 x 10^(-6)

Hope it helps.


Posted on Dec 10, 2009

  • 7993 Answers

SOURCE: How do i calculate antilog

For common logs (logs in base 10) use the 10^x function : Press [SHIFT] [Log] to access it.
For natural logs, use the exponential function. Press [SHIFT][ln] to access it.

Posted on Dec 03, 2010

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1 Answer

How do I find the antilog button on my TI-36X Pro or calculate it with other buttons?


The antilog functions are the 2nd functions of the log functions on the top row of the keyboard.

To calculate the natural antilog of 3.1, press 3 . 1 2nd LN
To calculate the common antilog of 3.1, press 3 . 1 2nd LOG

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1 Answer

Cannot calculate antilog value for negative numbers . Example: antilog(-5)


Make sure you use the (-) key to enter negative values, not the - key. For example, to calculate the common antilog of -5, press
SHIFT log (-) 5 =

To calculate the natural antilog of -5, press
SHIFT ln (-) 5 =

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1 Answer

I need help with the fx-115 ES on how to find what to hit to input calculation for antilog


Use the shifted function of the appropriate log key (log for common (base 10) log/antilog and ln for natural (base e) log/antilog). For example, to calculate the common antilog of 2, press SHIFT log 2 = and to calculate the natural antilog of 2, press SHIFT ln 2 =.

Apr 09, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

How do you use the -log function on the TI-30XA calculator? I downloaded the manual and there is no instruction for finding the -log of a number


Do you mean the antilog? For the common antilog, use the shifted function of the LOG key (marked 10^x). For the natural antilog, use the shifted function of the LN key (marked e^x).

For example, to calculate the common antilog of 0.5, press . 5 SHIFT [10^x] = and get about 3.16. To calculate the natural antilog of 0.5, press . 5 SHIFT [e^x] = and get about 1.65.

Mar 29, 2011 | Texas Instruments TI-30XA Calculator

2 Answers

How to find out antilog on scientific calculator


Antilog is a somewhat outdated terminology for the inverse function of the logarithm.
mib8888_4.gif
To calculate on your FX-115ES the base 2 antilog of 4, key in
mib8888_6.gif
Correct result is 16.

Jan 16, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

I am trying to find out where is


Hello,
Please read the following with patience.

  1. Let y=10^(x) ( 10 raised to the power of x)
  2. Take the log of both tems of the equality.
  3. You getlog(y)=log[10^(x)] where I used square brackets for clarity.
  4. But from the general properties of logarithmslog(b^(a)) = a*log(b)
  5. Applied to our expression above ( in Number 1)log(10^x)=x*log10
  6. But since we are using log as log in base 10, log_10(10)=1 so log(y)=x
  7. We thus have two equivalent relations y=10^x <----> x=log(y) The double arrow stands for equivalence.

If y is the log of x, then x is the antilog of y

Let's get back to you problem : To obtain the antilog you use the key marked with a 10^x.

Exemple1: What is the antilog of 3
Answer: Antilog(3) =10^3 =1000 because log(1000) =3.

Exemple 2: What is the antilog of 1.543765?
Antilog(1.543765) = 10^ (1.543765)= 34.97558603

Exemple3: What is the antilog of -0.37654?
Answer: Antilog (-0.37654) =10^(-0.37654) =0.4202038237

Look on the body of the calculator if there is key or a [Shift] key labeled with 10^x ( a 10 with a small raised x). If you are able to find it, use it. If not, you can always use the [raise to the power key] ( a caret ^, or Y to the x or X to the y.) For the last exemple, you type it as follows.
10 [^] (-) 0.37654 [=/ENTER]. The (-) is the change sign not the regular Minus.

Hope it helps.
Thanks for using FixYa.




Nov 19, 2009 | Sharp EL-531VB Calculator

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How to take antilog?


press shift log and then u can use antilog and give the numeric for which u have to find antilog then press = thats all if u are satisfied with the answer pls rate the session

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2 Answers

Find the antilog on the TI-84 Plus for finding pH in chemistry problems


I'm not specifically familiar with the TI83 or TI84 but I've used a lot of TI calculators in my time, so I'll give it a try. If your trying to find the antilog of a number in base 10 enter the number and hit the (10 to the X) button. If you're trying to find the antilog of a number in in base e (natural log), enter the number and hit the (e to the X) button.

May 29, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

How can i ake an antilog on a CASIO fx-300MS Calculator


By [2nd] log and then the number it's the antilog.
Rate me please, thanks.

Dec 08, 2008 | Casio FX-300MS Calculator

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