Question about Texas Instruments TI-30XA Calculator

How do I key in to get natural log for the following problem

1n[1.000/1.0333] =

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I noticed that this calculator doesn't have a natural logarithm function as well. You can can always use the fact that

ln x = (log x) /log e or since log e is approximately .43429482

ln x = (log x)/.43429482. The greatest solution and it might be worth the 15 bucks or so to get a calculator with e^x and the natural logarithm function.

Posted on Mar 09, 2009

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Posted on Jan 02, 2017

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The TI-30XA calculates logarithms to base e and base 10. You can calculate the log of x to any base b by calculating the logarithm of x and dividing it by the logarithm of b: log(x)/log(b) or ln(x)/ln(b).

Nov 29, 2013 | Texas Instruments TI-30XA Calculator

To take the log of a number, enter the number then press the LOG button, then the =. To take the log of a negative number, enter the negative number using the +/- key just to the right of the decimal point. To calculate the negative of a log, calculate the log and then negate it using +/-. To calculate the antilog (inverse logarithm), press 2nd then LOG.

Bear in mind that LOG is the common (base-10) logarithm. For the natural (base-e) logarithm, use the LN key to its right.

Bear in mind that LOG is the common (base-10) logarithm. For the natural (base-e) logarithm, use the LN key to its right.

Nov 07, 2011 | Texas Instruments TI-30XA Calculator

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.

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

Using logarithms. For example, if A ^ X = 2; then X = logA(2);

This calculator only works in base-10 logarithms or natural logarithms, you should use the base conversion formula.

logA(X) = logC(X) / logC(A).

Good luck!

This calculator only works in base-10 logarithms or natural logarithms, you should use the base conversion formula.

logA(X) = logC(X) / logC(A).

Good luck!

May 02, 2011 | Texas Instruments TI-30XA Calculator

Use the LOG key for common logarithms, the LN key for natural logarithms. Use the SHIFT of those keys for antilogarithms.

Example: to calculate the natural log of 2, press LN 2 =

Example: to calculate the natural log of 2, press LN 2 =

Sep 16, 2010 | Texas Instruments TI 30XIIS Scientific...

For common antilogarithm use 2nd [10^x]. For natural antilogarithm use 2nd [e^x]. Those are the shifted functions of the two logarithm keys.

These two functions operate on the expression already entered into the calculator.

Example: to calculate the natural antilogarithm of .7:

. 7 2nd [e^x] =

These two functions operate on the expression already entered into the calculator.

Example: to calculate the natural antilogarithm of .7:

. 7 2nd [e^x] =

Sep 16, 2010 | Texas Instruments TI-30XA Calculator

Yes, there is a [LOG] key to calculate decimal logarithms (logs in base 10) it is marked LOG, and another key marked [LN] to calculate the natural logarithms (logs in base e).

You enter a positive number, then press the appropriate log key (LOG or LN) and the result will be displayed.

You enter a positive number, then press the appropriate log key (LOG or LN) and the result will be displayed.

Jul 25, 2010 | Texas Instruments TI-30XA Calculator

Use the key marked LN (for natural logarithm (or Naperian logarithm)). It takes the log of the number currently in the display.

Feb 26, 2010 | Texas Instruments TI-30XA Calculator

Hi,

Sorry to contradict you but there are many types of logarithms, the most important ones are

**[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.

Sorry to contradict you but there are many types of logarithms, the most important ones are

- the common logarithms (log in base 10),
- the natural logarithms (logarithms in base e)
- the binary logarithms (logarithms in base 2)

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

Hello,

To calculate the natural log of a number use [LN] key. You enter it as

number [LN] [=] exemple**15.32 [LN] [=] **gives 2.729150164

To clculate the log base 10 (common logarithm) you use the [LOG] key

**15.32 [LOG][=]** gives 1.185258765.

Hope it helps

To calculate the natural log of a number use [LN] key. You enter it as

number [LN] [=] exemple

To clculate the log base 10 (common logarithm) you use the [LOG] key

Hope it helps

Sep 17, 2009 | Texas Instruments TI-30XA Calculator

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