Powers/square roots/cube root, nth roots – Casio FX-300MS User Manual
Page 5
FX 300 MS Training guide
Powers/Square Roots/Cube Root, nth roots
To square a number:
Use the [x
2
] key
Example: [5] [x
2
] [=] 25
To cube a number:
Use the [x
3
] key
Example:
[3]
[x
3
] [=] 27
To raise a number to a power
Use the [
∧] key
(other than 2 or 3): Example:
[2]
[
∧] [4] = 16
To find a square root:
Use the [
] key
Example:
[
] [25] [=] 5
To find a cube root:
Use the [
3
] key
Example: [SHIFT] [
3
] [27] [=] 3
To find a root
Use the [
x
] key
(other than square or cube root): Example: [4] [SHIFT] [
x
] [81] = 3
To find a reciprocal:
Use the [x
-1
] key
Example: [5] [x
-1
] [=] .2
Note: Press [a b/c] and the display will change to 1/5.
Probability Calculations/ Random Number/ Factorials
Permutations
A permutation is a selection of objects in which the order of the
objects matters.
Example: To determine the possible number of different
arrangements using 4 items selected from 10 items.
[10] [SHIFT] [nPr] [4] [=] 5040
Combinations
A combination is a selection of objects from a collection and order
is irrelevant.
Example: To determine the number of different combinations of 4
items selected from 10 items
[10] [nCr] [4] [=] 210
Factorials
To calculate a factorial, use [SHIFT] [x!]
Random Number
To generate a random number between 0 and 1,
press [SHIFT] [Ran#] [=]
5
References the Casio FX-300 MS User’s Guide
Casio FX-300MS Scientific calculator