In this volume I present some examples of Description of Surfaces, Partial Derivatives, Gradient, Directional Derivatives and Taylor’s Formula, cf. also Calculus 2b, Functions of Several Variables. Since my aim also has been to demonstrate some solution strategy I have as far as possible structured the examples according to the following form A Awareness, . a short description of what is the problem. D Decision, . a reflection over what should be done with the problem. I Implementation, . where all the calculations are made. C Control, . a test of the result
