− | Basic algebra for users. When I hear about Matrixes and Vectors I am not scared, but I know that troubles are near, because vector algebra can cause me headache. What I usualy need is a basic cookbook with most basic user recipes, "How to do it," and that is what I want to offer you here. | + | Basic algebra for users. When I hear about Matrixes and Vectors I am not scared, but I know that troubles are near, because vector algebra can cause me headache. What I usualy need is a basic cookbook with most basic user recipes, "How to do it," and that is what I want to offer here. |