Explore how covariance reveals relationships between variables, its role in financial planning, and its application in the stock market for better investment strategies.
The two-variable, or two-timing, procedure is formulated in a different and more general manner than usual. The procedure is first applied to an ordinary differential equation of the type ordinarily ...
Educational Studies in Mathematics, Vol. 73, No. 1 (Jan., 2010), pp. 3-19 (17 pages) This study is part of a project concerned with the analysis of how students work with two-variable functions. This ...