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Inverse log function - Casio Brand New-Fx-82au Plus - Scientific Calculator, Free Postage

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Posted on Jan 02, 2017

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SOURCE: how to ake antilog in fx-82Es

make shift and log

Posted on May 21, 2009

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SOURCE: how to find ln (inverse

The inverse function of the natural log (ln) is the exponential function (e^x). They share the same physical key. One is direct access key and the other is the shifted one: You have to press [SHIFT] to enable it.

Posted on Feb 26, 2011

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How do I calculate inverse logs on casio fx-82au plus?


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.

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Aug 18, 2014 | Casio Office Equipment & Supplies

1 Answer

Where the inverse log key on casino fx-115ES plus


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

1 Answer

How can i calculate log inverse with my fx-991ES plus


By 'log inverse', you presumably mean the inverse of the logarithm function. There are two logarithm functions on most scientific calculators. Firstly [ln], or natural logarithms, to the base e, where the inverse is e^x. Secondly [log], or logarithms to the base 10, where the inverse is 10^x.

Example 1 : ln(2) = 0.69314718 so e^0.69314718 = 2
Example 2: log(2) = 0.301029995 so 10^0.30102995 = 2

Oct 02, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

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

1 Answer

How to take anti log in casio fx 991 ms and give example?


Depending on the actual log function you are talking about, the inverse function (what you call the anti log) can be one of several things.
The inverse of the natural log (LN) is the exponential function e^x.
If y= ln(x) then x=e^y
On a calculator functions that are inverse of one another share the same physical key. If one function is marked on a key, the inverse function is usually the SHIFTED (or 2nd) key
The inverse of the common (decimal logarithm) is the power function with 10 as base.
Example: if y= log(x) then x=10^y
For an arbitrary base (must be positive) if y= log_b(x) then x=b^y.
Note: I do not think that the FX-300ms can perform log calculations in bases other than e (natural log) or 10 (common decimal log).

Aug 13, 2011 | Casio FX-300MS Calculator

1 Answer

My calculator is giving me the wrong answers for the Log^-1. I keep on pressing SHIFT then the Log and the anti- log keeps on coming up as 10^. Before it would appear on the screen as Log^-1 ( ). Please...


Sorry the answer comes too late for your final exam. If you took the time to really understand what the inverse of a log function is, you would have saved yourself the anxiety before the test.

Anyway, the inverse of the logarithm in base 10 IS the power function with base 10.
y=log(x) <=> x=10^(y).

Some calculator manufacturers use the marking ^-1 to represent an inverse function. But recently one sees new calculators with the new notation.

By the way, the inverse of the natural log function (LN) is the exponential function (e^(x))

May 02, 2011 | Casio fx-300ES Calculator

1 Answer

How do i perform log and log inverse or antilog calculations on my sharp EL W-535 calculator


Press the log key, enter a poistive number and press the = key.
To calculate the inverse of the decimal log use SHIFT LOG to access the function 10^x (the inverse of the log function.)

Dec 15, 2010 | Sharp ELW535 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

Using the correct key combination to determine inverse log


Hi,
Sorry to contradict you but there are many types of logarithms, the most important ones are
  1. the common logarithms (log in base 10),
  2. the natural logarithms (logarithms in base e)
  3. the binary logarithms (logarithms in base 2)
On calculators, the common logarithms are labeled [LOG], and the natural logarithms are labeled [LN].

The inverse function of the natural log function is the exponential (e^(x)), and the inverse of the log in base ten function is the function ten to the power of. It is called (sometimes) the antilog

Ex:
Question What is the antilog of 3.5678?
Answer The antilog of 3.5678 is 10^(3.5678) = 3696.579068
Verification: log(3696.57908) =3.5678

Hope it helps.



Nov 29, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

How do I enter an inverse log function into my claculator? for instance log-1(-.4/10)


Hello,
If you want to do correct mathematics you should strive to use the right words to express the concepts, and the right symbols too. While the logarithm function has an inverse function, it is never called an inverse log and it is never represented as log^-1. (I know you are going to protest and claim that the inverse of a sine function is represented on calculators by sin^-1. This a manufacturer shortcut, and we have no power to change that.) HP uses ASIN, ACOS, ATAN. These are still manufacturer shortcuts but they induce fewer errors.
Anyway, the logarithm functions do have inverse functions.

1. Natural loogarithm (ln)

The inverse of the natural log is the exponential.
ln(e^(x))=e^(ln(x)) =x

2. Common logarithm (logarithm in base 10)
The common logarithm has an inverse function, often called the antilogarithm or antilog.

There is an equivalence.
y=log(x) <--> x=10^(y)


From what I undesrtand of your exemple, you are looking for the antilog of the number -0.4/10 (or -0.04.)

-0.04= log(x), what is x?
You use the equivalence above to look for x as follows.
x=10^(-0.04) =0.9120108394.
Use the change sign (-) not the regular MINUS sign.

Take the log of the last result (still stored in Ans memory) and you get the original number.

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Hope it helps.


Oct 26, 2009 | Texas Instruments TI-83 Plus Silver...

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