If you notice that the first term is a perfect square, and the second term is a perfect square, and you have a negative here, we can say that it is "the difference of two squares." What we want to do ...

This is a preview. Log in through your library . Abstract We classify all complex quadratic number fields that have all their algebraic integers expressible as a sum ...

An iterative algorithm for solving linear least squares problems has been developed and tested on an IBM 1620 computer. This article traces the development of the algorithm from that described by ...