Friday, 2 October 2015
NON PERFECT SQUARE ROOT CALCULATOR



What are Square Roots?
Definition of a square root: The opposite of squaring a number. For example, finding the square root of 81 is the same as asking, "what number when squared is equal to 81?"
Of course, if you know that 9 x 9 = 81, you will know that the square root of 81 is 9 (92 = 81). However, what you might not realize is that -9 is also a square root of 81, because -9 x -9 also equals 81.
In other words, all numbers greater than zero (zero can never be negative or positive) have two square roots -- one positive and one negative. This is why when using an online square root calculator the result will always be preceded by a ± sign.
As for negative numbers, since a negative times a negative always yields a positive number, negative numbers cannot have a real value square root.
What Are Perfect Squares?
When a number has a square root that is a whole number, that number is said to be a perfect square. For example, since √4 has a square root of 2, 4 is said to be a perfect square. Here is a list of the perfect squares up to 225:
√1 | = | 1 | since | 12 | = | 1 |
√4 | = | 2 | since | 22 | = | 4 |
√9 | = | 3 | since | 32 | = | 9 |
√16 | = | 4 | since | 42 | = | 16 |
√25 | = | 5 | since | 52 | = | 25 |
√36 | = | 6 | since | 62 | = | 36 |
√49 | = | 7 | since | 72 | = | 49 |
√64 | = | 8 | since | 82 | = | 64 |
√81 | = | 9 | since | 92 | = | 81 |
√100 | = | 10 | since | 102 | = | 100 |
√121 | = | 11 | since | 112 | = | 121 |
√144 | = | 12 | since | 122 | = | 144 |
√169 | = | 13 | since | 132 | = | 169 |
√196 | = | 14 | since | 142 | = | 196 |
√225 | = | 15 | since | 152 | = | 225 |
With that, let's use the Square Root Calculator for finding the square root of a number.
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