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How do i raise a number to a negative power using my ti-84 plus?

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To raise a number to a negative exponent, you have to first enter the base number then press the button right below the 'clear' button and then press the 'negative button' that is located right next to the 'enter button'. then you can enter the number

Posted on Mar 20, 2011


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I can't put a negative number in the matrix without a syntax error

Use the (-) key just to the right of the decimal point, not the - key. The second key is for subtraction.

Jan 27, 2013 | Texas Instruments TI-84 Plus Calculator

1 Answer

I have a TI-84. It gives me a syntax error when I try to enter problems with negative exponents.

Use the (-) key (just to the right of the decimal point key) instead of the - key when entering a negative number (not just exponents).
- is used to subtract one value from another. (-) is used to negate a value. - operates on two numbers, (-) operates on one.

Mar 14, 2012 | Texas Instruments TI-84 Plus Calculator

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TI-84 Plus Silver Edition. When dividing negative powers of ten by other negative powers of 10 the calculator it just adds the the negative powers together. How do i fix this? An example: 5*10^-10 /...

To enter an exponent, positive or negative, use the EE (Enter Exponent) key (the shifted function of the , key just above the 7 key). Do 5 2ND [EE] (-) 1 0 / 5 2ND [EE] (-) 1 0 ENTER and you'll see 1.

What I think you're doing (I can't be sure without seeing your keystrokes) is calculating
5*10^-10/5*10^-10 which is interpreted as (5*10^-10/5)*10^-10, which indeed is 10^-20.

Oct 16, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

How do you find a number's tenth root on a TI BA2 Plus calculator?

Use the universal power key marked [Y to x] or [Y^x].
This key allows you to calculate powers with arbitrary exponents.
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10th root of X = X raised to the power 1/10
10 th root of 2345 = (2345)^ (0.1)
For this case

Oct 04, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Where's the EXP button on TI-30XB? i need to answer a problem just like this : -log2.5(EXP)^-4

To raise e to the xth power, use e^x, which is the second function of the LN key to the left of the 4 key.

To enter a decimal exponent, use EE, which is the second function of the , key above the 7 key.

To raise a value to another value, use the ^ key, above the divide key.

Also, don't forget to use (-) instead of - when entering a negative exponent (or any other negative value).

Sep 29, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Whenever I type in a negative number raised to an exponent, the calculator outputs a negative number! even for a question like -2^2. How do I fix this?

You're not raising a negative number to an exponent, you're negating a number raised to an exponent.

If you want to raise -2 to the second power, you need to enter it as
( (-) 2 ) ^ 2

Without the parens, what you're getting is the equivalent of -(2^x)

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Having gone over a month with no response, I assume this is no longer a problem.

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I think you are using the minus symbol instead of the negative symbol (located below the 3).

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