Sometimes in mathematics we like to use letters to represent numbers. The ‘value’ of these letters can change according to certain rules or conditions we are given – hence we can call them variables.
A first course in theory of analytic functions of one complex variable: complex differentiability and the Cauchy-Riemann equations, Cauchy Integral Theorem and Cauchy Integral Formula, Taylor and ...
The following text was prepared for the Begle Memorial Series on Research in Mathematics Education of the IV ICME Congress at Berkeley in August 1980. Several sessions of this series were devoted to ...
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