What is it?
Just as the Square function raises an argument to the power of 2, the Sqrt function reverses this procedure back to the original base value to return the square root.
For example, 4 squared is 16, so the square root of 16 is 4.
What is the Syntax?
The syntax for the Sqrt function is as follows:
Sqrt( Argument );
Why might I want to use this?
When we discussed the Square function, we discussed the use of Pythagoras' theorem when finding the length of an unknown side. However, in order to fully evaluate the missing side’s length we need to use the Sqrt function. The function we listed previously is:
Sqr( A ) = Sqr( B ) + Sqr( C )
This means that the value of A is as follows:
A = Sqrt( Sqr( B ) + Sqr( C ) )
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