This document outlines my 57-year career in computational mathematics, a career that took me from Poland to Canada and finally to Denmark. It of course spans a period in which both hardware and software developed enormously. Along the way I was fortunate to be faced with fascinating technical challenges and privileged to be able to share them with inspiring colleagues. From the beginning, my work to a great extent was concerned, directly or indirectly, with computational linear algebra, an interest I maintain even today.