What is it?
The Square function is a simple method to find out the value of a single value after it is squared, or raised to the power of 2.
What is the Syntax?
The syntax for the Square function is as follows:
Square( Argument );
Why might I want to use this?
The simplest use of the Square function is to calculate the area of a square using the length of its sides as the argument. There are many other uses besides this, one example being Pythagoras' theorem for calculating the unknown length of one side of a right-angled triangle. This theorem is summarised with the following expression:
( A ^ 2 ) = ( B ^ 2 ) + ( C ^ 2 )
Which can also be written as:
Square( A ) = Square( B ) + Square( C )
A, B and C refer the three sides of a triangle, as illustrated below:
You can calculate the length of any of the three sides as long as you have the other two sides using the expression above. Once you have the value of Square( A ) you will need to calculate its square root in order to find the value of A. The next section introduces the function you will need to calculate a square root.
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