One of the formulas supported by Microsoft Excel is the sum of squares equation. To calculate the sum of squares using Microsoft Excel, you need to input a specific formula into the formula bar of the ...

A sum of squares can be partitioned into sums of quadratic forms whose kernels are projections. If these projections are mutually orthogonal and add to the identity, then, under the classical fixed ...

This paper gives a geometric illustration of some of the commonest identities in the algebra of the sum of squares. The method is essentially the construction of squares of the various numbers and ...