数学工具在解电学题中的应用举例

Examples to Work out Problems in Electricity by Using Mathematical Means

对数学工具（方程和方程组、函数极值、不等式、图象法等）在解电学题中的应用进行了举例和探讨．

This essay exemplifies and discusses how mathematical means (equations, equation sets, functional limits, inequalities, image metholds etc) are used in working out problems in electricity.