Question about Texas Instruments BA-II Plus Calculator

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If the APR is 21.75%, with interest paid monthly, what is the credit card's EFF%?

I'm trying to use the shortcut, by pressing [2nd] [ICONV]. to solve for the EFF%.

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Posted on Jan 02, 2017

Uncle Dean
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SOURCE: interest only payments

I gave up using the Texas BA II. I used an on-line mortgage calculator for interest only. I was able to get a full printout.
I would like to learn more about the BA II and how to do this type of math on it.
Thank you

Posted on Mar 02, 2008


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Where do I find the iconv function?

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Hello I bought the Texas Instruments BA 2 plus,how to change 2 fin mode?there is no mode button.

The calculator has different worksheets.
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Hi, I'm currently using Nokia E71 i can receive messages and calls but i cannot send or make any outgoing calls even if i have enough credit


The problem is with your Phone Please Restore the factory setting only it'll solve your problem.
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1step Switch off your Mobile then
2nd Step You should press & hold 4 buttons on your mobile the buttons are * button, no3 button, call button & switch on button.
remember you should hold all 4 buttons until Nokia tune comes. all buttons will pressed in one time only you should not live any button in between.


// Feel free to vote this answer with 4 thumbs up //

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I cannot get the textbook answer (online calculators are also the same as textbook answer) using my sharp calculator EL738: Monthly payment for $184,500 at 6.75% interest semi annually, for 5 year term...

Your result is for the 6.75% interest compounded monthly. The problem states that the interest is compounded semiannually. This makes a difference in the effective interest rate.

A 6.75% APR compounded semiannually gives an effective interest rate of about 6.864%:
Press 2 , 6 . 7 5 2nd >EFF

Converting this to APR gives about 6.657%:
Press 1 2 , 6 . 8 6 4 2nd >APR

If you use 6.657 for the interest rate instead of 6.75 you should get the correct result.

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1 Answer

Interest conversion

Try hitting Enter after plugging in the numbers. That should make the numbers stay.

Oct 26, 2006 | Texas Instruments BA-II Plus Calculator

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