The Sum Squares function, also referred to as the Axis Parallel Hyper-Ellipsoid function, has no local minimum except the global one. It is continuous, convex and unimodal. It is shown here in its two ...

By squaring these differences, we end up with a standardized measure of deviation from the mean regardless of whether the values are more or less than the mean. Let's remind ourselves of the equation ...

find two numbers that have a product of +11 and a sum of -12. \(11 + 1\) will add up to +12, not -12, so the numbers must be -11 and -1 as \(-11 \times -1 = +11\). The difference of two squares ...