Multivariable calculus, Class #1 - lines, planes and cross product

Mathematician spotlight: Diana Davis A segue from linear algebra to the study of multivariable calculus. Dimension counting with degrees of freedom, intersection of two planes, parametric equations for a line in R^3, cross product, right hand rule, area of a parallelogram. Corresponds to Colley, Vector Calculus, sections 1.1-1.5.