This paper presents a conceptual analysis for students' images of graphs and their extension to graphs of two-variable functions. We use the conceptual analysis, based on quantitative and ...

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 ...

In this video we will learn about the plotting of graphs for a pair of linear equations in two variables. Two straight lines are obtained when we plot a pair of linear equations on the graph paper ...

Google has added another feature to its simple search box. It can now be used as a 3D graphing calculator. Powered by WebGL, the new graphing feature is activated when you enter in a two-variable ...

THE second edition of this useful book will be warmly welcomed. The theory of functions of a complex variable plays an increasingly important part in the applications of mathematics to physical ...

IT is imposible to read Dr. Hobson's book without reflecting on the marvellous change that has come over Cambridge mathematics in the last twenty years. Twenty years ago Cambridge mathematics was a ...