Calculating the Square of the Vector Norm: H = c'*c

This code snippet calculates the value of H, which is the square of the norm of the vector c.

In other words, if c = [c1, c2, ..., cn], then H = c1^2 + c2^2 + ... + cn^2.

This value is often used in linear algebra and optimization problems, where the magnitude of a vector is important.