Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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For negative numbers (not just exponents), make sure you use the (-) key just to the right of the decimal point key, not the - key for subtraction.

For what follows I'm going to assume you have at least version 2.53 of the operating system for the 84Plus. If you have an older version, I STRONGLY recommend you update it:

http://education.ti.com/educationportal/sites/US/productDetail/us_os_84plus.html

You can use the "n/d" command in the MATH/NUM menu to enter the division bar. For example, to enter 1/2, press 1 MATH right-arrow ALPHA [D] 2 ENTER. If you just want the number, you can also enter it as 1 / 2.

You can convert a decimal number to a fraction using the >Frac command in the MATH menu. For example, to convert 0.2 to a fraction, press . 2 MATH 1 ENTER.

Posted on Mar 16, 2011

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Posted on Jan 02, 2017

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( 1 9 / 8 ) y^x ( 1 / 7 2 0 ) =

Apr 13, 2013 | Sentry CA700 Scientific Calculator

To enter an exponent different from 2, you can use the general power key [^], the one above the [+] key and below the [CLEAR] key in the rightmost column of keys.

If exponent is negative or a fraction, enclose it between parentheses. The negative sign to use is the change sign [(-)] located between [. dot] and [ENTER] keys.

Example: 2 to power 60 is typed in as follows [2] [^] 60 [ENTER]. The result should be 1.152921505E18

If exponent is negative or a fraction, enclose it between parentheses. The negative sign to use is the change sign [(-)] located between [. dot] and [ENTER] keys.

Example: 2 to power 60 is typed in as follows [2] [^] 60 [ENTER]. The result should be 1.152921505E18

Jun 13, 2011 | Texas Instruments TI-84 Plus Calculator

You cannot use a letter as an exponent, unless you stored a numerical value in memory B (EX: 3 [STO>] [ALPHA] B stores value 3 in B)

For any numerical value of exponent ( positive, negative, integer, fraction, what have you) you use the general power key, marked with a caret [^] under the [CLEAR] key.

Example: To enter 15 to power 5

Type in 15

Press [^] key

Type in the value of the exponent (5) and press [ENTER]

You get 759375 as result.

For any numerical value of exponent ( positive, negative, integer, fraction, what have you) you use the general power key, marked with a caret [^] under the [CLEAR] key.

Example: To enter 15 to power 5

Type in 15

Press [^] key

Type in the value of the exponent (5) and press [ENTER]

You get 759375 as result.

Feb 18, 2011 | Texas Instruments TI-84 Plus Calculator

Use the general power key marked with X to the y ( look for the image of a key on same line as Power in the screen capture)

You enter a number then press the power key and finally the exponent. If exponent is complicated (fraction, negative or other) enclose the exponent in parentheses.

You aslo have dedicated keys for certain powers and roots (square, square rooot, cube, cubic root)

You enter a number then press the power key and finally the exponent. If exponent is complicated (fraction, negative or other) enclose the exponent in parentheses.

You aslo have dedicated keys for certain powers and roots (square, square rooot, cube, cubic root)

Jun 09, 2010 | Casio FX-260 Calculator

Hello Michelle,

Sorry, the answer was posted as a clarification request. Here it is again.

1. Use the key that appears on the sixth line in the picture. 10 [Y to the x] [(+/-)] 14 : the (+/-) is the change sign/ negation sign, not the regular minus sign. This key can be used to calculate the power with any exponent ( negative, positive, integer, fraction, decimal, ..) 2. The procedure above is not efficient since the calculator has a short cut to 10 to the power., the key labeled [EE}. With this key you enter 1.[EE] (+/-) 14

Hope it helps.

Sorry, the answer was posted as a clarification request. Here it is again.

1. Use the key that appears on the sixth line in the picture. 10 [Y to the x] [(+/-)] 14 : the (+/-) is the change sign/ negation sign, not the regular minus sign. This key can be used to calculate the power with any exponent ( negative, positive, integer, fraction, decimal, ..) 2. The procedure above is not efficient since the calculator has a short cut to 10 to the power., the key labeled [EE}. With this key you enter 1.[EE] (+/-) 14

Hope it helps.

Nov 01, 2009 | Texas Instruments TI-30XA Calculator

Uh yes it will allow you to enter a negative exponent.... press the numbers you want then hit EXP button, then hit the +/- button and then the exponent. 60 % of the time, it works...... everytime.

Sep 20, 2009 | Texas Instruments TI-83 Plus Calculator

Hello,

Use the small (-) sign sometimes labelled [(-)] or [+/-] and put the whole exponent netween parentheses 18 [y to the x] [(] [(-)] 3 [)] . On some calculators you enter the small - signe after the value of exponent,

18 [y t x] 3 (-) [Enter] should give you 1.7146E-4

In summary the small minus sign; the whole negative exponent between parentheses.

Hope it helps.

Use the small (-) sign sometimes labelled [(-)] or [+/-] and put the whole exponent netween parentheses 18 [y to the x] [(] [(-)] 3 [)] . On some calculators you enter the small - signe after the value of exponent,

18 [y t x] 3 (-) [Enter] should give you 1.7146E-4

In summary the small minus sign; the whole negative exponent between parentheses.

Hope it helps.

Sep 18, 2009 | Sharp EL-531VB Calculator

To do fractions, input like this:

(1/3)+(4/9)

Granted the answer is a decimal... But you should be able to convert that to a fraction using what you've learned in math class.

PI sign: Just press [2nd]and then[^]. And voila, instant π! Exponent:enter more complicated expressions involving exponents using parentheses and the negative sign.

**For further guide read: http://www2.stetson.edu/~mhale/teach/ti83.htm and**
http://education.ti.com/educationportal/downloadcenter/SoftwareDetail.do?website=US&appId=6124&tabId=2

Please rate this!!

(1/3)+(4/9)

Granted the answer is a decimal... But you should be able to convert that to a fraction using what you've learned in math class.

PI sign: Just press [2nd]and then[^]. And voila, instant π! Exponent:enter more complicated expressions involving exponents using parentheses and the negative sign.

Please rate this!!

Aug 16, 2009 | Texas Instruments TI-81 Calculator

Place both the base and the exponent in parentheses

(3/4)^(-2) then press enter. Your answer will be in decimal form at first 1.777...

Press MATH

Select the 1: Fraction option and it will convert your decimal value to the fraction answer of 16/9.

Negative exponents flip the fraction. For instance, (3/4)^(-1) = 4/3. So for (3/4)^(-2) you could just square the numerator and denominator separately to get 9/16, and then flip the fraction to account for the negative. That will give you 16/9.

(3/4)^(-2) then press enter. Your answer will be in decimal form at first 1.777...

Press MATH

Select the 1: Fraction option and it will convert your decimal value to the fraction answer of 16/9.

Negative exponents flip the fraction. For instance, (3/4)^(-1) = 4/3. So for (3/4)^(-2) you could just square the numerator and denominator separately to get 9/16, and then flip the fraction to account for the negative. That will give you 16/9.

Jul 24, 2009 | Texas Instruments TI-83 Plus Calculator

the way i enter my equations is a bit different from what you're doing, i use the fraction button to do division problems, i just feel it makes it easier to read.

anyway, the fraction button is on the far left, 3rd button down (it looks like a white box on top of a line, and below the line is another empty box). press that, and you can type 1.0x10^-14 on the numerator.

it seems that you haven't discovered the EXPONENT button. that button is on the same row as the fraction button, it looks like an x with a white box next to it. press that once you've typed out "1.0x10", and then type -14. the negative button btw is below the fraction button, and looks like this: (-)

press the right arrow twice on the circle thingy at the top of all the keys, and that'll advance you to the denominator. type 2.0x10^-5, using that nifty exponent key. press the equal sign and it'll solve it for you, all in scientific notation (the answer is 5x10^-10). the problem with this calculator is, it won't expand that answer for you with all the decimals and everything, but if its chemistry that shouldn't be a problem.

also, you can certainly use the "x10^x" button on the very bottom of the keypad (its next to the decimal button). by using this key, you won't have to press the exponent button since you can just type in the exponent directly next to the 10.

as for that negative log of 5.6, just input the negative, the log button is right next to the exponent button, and your number and yeah....it's that easy :]

i hope you like this caculator, it has so many functions (have you seen the size of the manual??)

good luck on your chemistry test!

anyway, the fraction button is on the far left, 3rd button down (it looks like a white box on top of a line, and below the line is another empty box). press that, and you can type 1.0x10^-14 on the numerator.

it seems that you haven't discovered the EXPONENT button. that button is on the same row as the fraction button, it looks like an x with a white box next to it. press that once you've typed out "1.0x10", and then type -14. the negative button btw is below the fraction button, and looks like this: (-)

press the right arrow twice on the circle thingy at the top of all the keys, and that'll advance you to the denominator. type 2.0x10^-5, using that nifty exponent key. press the equal sign and it'll solve it for you, all in scientific notation (the answer is 5x10^-10). the problem with this calculator is, it won't expand that answer for you with all the decimals and everything, but if its chemistry that shouldn't be a problem.

also, you can certainly use the "x10^x" button on the very bottom of the keypad (its next to the decimal button). by using this key, you won't have to press the exponent button since you can just type in the exponent directly next to the 10.

as for that negative log of 5.6, just input the negative, the log button is right next to the exponent button, and your number and yeah....it's that easy :]

i hope you like this caculator, it has so many functions (have you seen the size of the manual??)

good luck on your chemistry test!

Jun 06, 2009 | Casio FX-115ES Scientific Calculator

Jul 21, 2014 | Texas Instruments TI-84 Plus Silver...

Jun 14, 2014 | Texas Instruments TI-84 Plus Silver...

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