Question about Texas Instruments BA-II Plus Calculator

# Which is the log key on the BA II Plus? - Texas Instruments BA-II Plus Calculator

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The natural logarithm key is just to the left of the 7 key, marked "LN".

Posted on Jul 06, 2010

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Posted on Jan 02, 2017

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To calculate the natural logarithm of the value in the display, just press the LN button. If you need the common (base-10) logarithm, compute it as ln(x)/ln(10). That is, divide the natural logarithm of the value divided by the natural logarithm of ten.

Posted on Feb 26, 2011

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Your BA II PLUS stores numeric values internally to an accuracy of 13 digits. However, the numbers it displays depends on the number of decimal places to which you have it set (choice of 0–9 or floating decimal). To set the number of decimal places displayed to three: hit [2ND][FORMAT][3][ENTER]This setting also continues indefinitely (even though the calculator is turned off and on) until it is changed.

Posted on Jun 11, 2009

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SOURCE: nPr and nCr key

Hello,
On calculators you calculate permutations and combinations as follows
Enter the number n then press key nPr, and the number r
18(nPr)5=1028160

For combinations, use nCr key instead of nPr.
18(nCr)5=8568.

Hope it helps

Posted on Sep 06, 2009

• 1 Answer

By default the BAII Plus displays only two decimal places. This is not enough. Personally, I like to see five decimal places, but you may prefer some other number. To change the display, press the 2nd key, then the decimal point key, and, when prompted, enter the number of digits you would like to see displayed. You must then press the Enter key to lock in your choice. I would press 2nd, ., 5, Enter to display 5 decimal places. Now press 2nd, CPT to return to a blank screen. Problem solved.

One other adjustment is important. The BAII Plus comes from the factory set to assume monthly compounding. That's fine, I suppose, but its better to set it to assume annual compounding and then make manual adjustments when you enter numbers. Why? Well, the compounding assumption is hidden from view and in my experience people tend to forget to set it to the correct assumption. Of course, most people don't recognize a wrong answer when they get one, so they blithely forge ahead. To fix this problem press 2nd then I/Y and enter 1 when prompted. Now press Enter and then 2nd, CPT to return to a blank screen. Problem solved.

Posted on May 31, 2010

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If you mean exponentiation (natural antilogarithm): 2nd e^x (e^x is just to the left of the 7 key).

If you want general powers: y^x (just above the 9 key).

If you want 10^x (common antilogarithm) or simply an [enter exponent] key, there are no keys for those. You'll just have to raise 10 to the desired exponent.

Posted on Jul 26, 2010

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## Related Questions:

1 Answer

### How do i enter a negative log

type in the log, then use the change sign key (-) or (+/-) to negate the value displayed. You can also type in 0-log(x)

Jan 20, 2013 | Texas Instruments BA-II Plus Calculator

1 Answer

### Anyone know how to change the decimal place on a ti BA II , not a BA II plus? there is no function ket on a ba II

The TI BA-II Executive Business Analyst (maybe not your model) has a key labeled FIX. It is in the middle of the topmost row of keys. Press the FIX key followed by the number of decimal digits you want.

May 24, 2011 | Texas Instruments Office Equipment &...

1 Answer

### Where's the "log" key?

There isn't one. You can calculate the common logarithm of any number by using the relationship
log x = ln x / ln 10. In words, calculate the log of a number by dividing its ln by the ln of 10.

The ln key is just to the left of the 7 key.

May 10, 2011 | Texas Instruments BA-II Plus Calculator

1 Answer

### TI BA 2 Plus Calculator: Cannot figure out how to use log(10) function, not the natural log but the base of 10 log

The BA II+ does not have a key for the common logarithm function. You can calculate the common log of a number by calculating its natural log and then dividing by the natural log of 10.

log10(x) = ln(x)/ln(10)

The same procedure works for logarithms to any base.

Dec 14, 2010 | Texas Instruments BA II PLUS Financial...

1 Answer

### How do I find the "Log" key on the TI BA 2 Plus? Not natural log, but to the base of 10

There is no common logarithm key. You can compute the common (base 10) log of any number by using the relationship log(x) = ln(x) / ln(10).

For example, to compute the log of 2, type 2 LN / 1 0 LN =

Dec 14, 2010 | Texas Instruments BA II PLUS Financial...

1 Answer

### Where is the 'log' key, not the LN key. ?

There isn't one.

You can calculate the common logarithm of any number by dividing the natural logarithm of the number by the natural logarithm of 10.
In other words, log(x) = ln(x)/ln(10).

Sep 28, 2010 | Texas Instruments BA-II Plus Calculator

1 Answer

### How do you calculate the natural log

there is no log key, but there is a short cut.

hit diamond 7, and you will get log.

Sep 14, 2010 | Texas Instruments BA-II Plus Calculator

1 Answer

### How can find logarith of a value from Texas Instruments BA 2 plus

The natural log is the LN key, located just to the left of the 7 key.

To calculate the common log, use the relationship log(x) = ln(x)/ln(10).

To calculate the natural log of 3, press 3 LN

To calculate the common log of 3, press 3 LN / 1 0 LN =

Jun 11, 2010 | Texas Instruments BA II PLUS Financial...

1 Answer

### How do i use the log function on my ba ii Calculator?

To calculate the natural logarithm of the value in the display, just press the LN button. If you need the common (base-10) logarithm, compute it as ln(x)/ln(10). That is, divide the natural logarithm of the value divided by the natural logarithm of ten.

May 20, 2010 | Texas Instruments BA-II Plus Calculator

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