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Where is the e key o the TI-30x not the e^ I need

Where is the e key o the TI-30x not the e^ I need to calculate log pi/log e(pi)

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kakima

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There is no key dedicated to e. You can calculate the value by raising e to the first power: 1 2nd [e^x] =

Posted on Dec 02, 2010

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Change base log

http://education.ti.com/guidebooks/scientific/30xii/teacher_guide/30xiitg-eng_.pdf page 108 may shed light on this. This may not be your exact model but the keys work the same.
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How do i go from dms to decimal degrees with my ti-30x IIs

Press the key that is marked with a small circle, an apostrophe, and a double quotation mark. That is the DMS key. You can use it to convert from Decimal degress to DMS and back.
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I bought it at a rummage sale and what a manual for it where can i get one? And is different from the TI 30X 11?

You can download the TI-30Xa guidebook from the manufacturer's web site at
http://education.ti.com/calculators/downloads/US/Guidebooks/Detail?id=6132

The TI-30Xa replaced the TI-30X within a year. The only enhancement was the added Constant key.

The TI-30XII, introduced about five years later, is a significantly different calculator, incorporating, among other things, a two-line display.
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How do I work the anti log on TI-30X 2s? Where are the buttons?

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.
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WHAT IS THE (+/-) ON THE TI-30X CALCULATOR/

The +/- key on the ti-30x is to let the calculator know whether the number you are using is positive or negative. EX: 4 3 2 1 = positive -4 -3 -2 -1 = negative
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HOW DO I TYPE IN LOG BASE 3 OF 18 IN MY TI 30X

You can calculate the log to any base by using the relationship logb(x) = log(x)/log(b) = ln(x)/ln(b). In words, the base-b logarithm of x is the logarithm of x divided by the logarithm of b.

So, to calculate the log base 3 of 18, press
1 8 LOG / 3 LOG =
or
1 8 LN / 3 LN =
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Where is the anti log button on my Ti- 30x?

Common antilog is the 2nd function of the LOG key, natural antilog is the 2nd function of the LN key.
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How do you do logarithmic problems on the TI-30X?

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 =
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How to do nPr or nCr on TI-30x Solar (scientific calc.)

If you have an older version on the TI30x Solar (not TI30Xa or newer) then you must use a different key sequence for nPr/nCr.

52 [2nd][x/y] 5 [2nd][nCr] gives 2598960 (the x/y button is above the Pi symbol on my version).
8 [2nd][x/y] 3 [2nd][nPr] gives 336

This took me forever to find out, so hopefully it will help someone!
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