定积分中的重积分技术

Double Integral Technique of the Definite Integral

利用重积分的特点 ,提出了定积分计算和证明的新思路、新方法 ,并通过具体例子详细验证了这一思路、方法的有效性。

Using the property of the double integral, a new idea and method of the proof and calculation of the definite integral is proposed. And it's validity is exactly proved by detail examples.