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The TI-30X IIS Calculator and Exponents, Study notes of Elementary Mathematics

The TI-30X IIS Calculator and Exponents ... Taking a root can be done easily using √ option, which is achieved by ... Square root: √ the number =,.

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Uploaded on 09/12/2022

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The TI-30X IIS Calculator and Exponents !
Squaring a number can be done easily using a x2 key. Cubing a number or raising it to any power can be
achieved by using ^ key followed by number 3.
Ø Squaring: input the number and then x2 =, 42 is found by inputting: 4 x2 =
You screen will look like: 42 16
Cubing or raising a number to the third power: input the number and then ^3 =, 43 is found by
inputting: 4 ^3 =
You screen will look like: 4^3 64
Raising a number to a power greater than 3: input the number and then ^ (the power desired) =, (-3)4 is
found by inputting: ( (-)3 ) ^ 4 =
You screen will look like: (-3)^4 81
Note: if you did not put the -3 in parentheses, the orders of operation raises the 3 to the fourth power and then
makes it negative, hence the answer will be -81.
!
Be careful that you always put negative numbers in parentheses when raising them to powers. !
2nd!
ARROWS!
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^!
x2
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PARENTHESIS
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The TI-30X IIS Calculator and Exponents Squaring a number can be done easily using a x 2 key. Cubing a number or raising it to any power can be achieved by using ^ key followed by number 3. Ø Squaring: input the number and then x 2 =, 4 2 is found by inputting: 4 x 2 = You screen will look like: 4 2 16 ➢ Cubing or raising a number to the third power: input the number and then ^ 3 =, 43 is found by inputting: 4 ^ 3 = You screen will look like: 4^3 64 ➢ Raising a number to a power greater than 3: input the number and then ^ (the power desired) =, (-3) 4 is found by inputting: ( (-) 3 ) ^ 4 = You screen will look like: (-3)^4 81 Note: if you did not put the - 3 in parentheses, the orders of operation raises the 3 to the fourth power and then makes it negative, hence the answer will be - 81. Be careful that you always put negative numbers in parentheses when raising them to powers.

2nd

ARROWS

^

x

2

PARENTHESIS

➢ You can also take values to fractional exponents: 8 2/3^ can be found by inputting: 8 ^ ( 2 ÷ 3 ) = You screen will look like: 8 ^ (2 / 3) 4

Taking a root can be done easily using √ option, which is achieved by pressing 2nd x

2 . Any other root (n-root), can be calculated by pressing (the root desired) 2nd ^.

is found by inputting: 2nd x

2 ➢ Square root : √ the number =, 36 = You screen will look like: √(36 6

➢ Cube root : ∛the number =, is found by inputting: 3 2nd ^ 64 =

You screen will look like: 3 x √64 4 ➢ Taking a root higher than a cube root : (the root desired) 2nd ^ (the value) =, is found by inputting: 4 2nd ^ 1296 = You screen will look like: 4 x√1296 6 Since the root symbol works like a grouping symbol, there is no need to use parentheses for negative values. is found by inputting: 5 2nd ^ (-) 32 = You screen will look like: 5 x √- 32 - 2 Remember that you can’t take an even root of a negative number. If you do you will get an error message.