复数和函数。
它为双精度数和复数提供了近400个函数。
It provides nearly 400 functions for doubles and complex Numbers.
把平面问题的物理量和基本方程全部改写为复数形式,从平衡方程出发引入了复应力函数。
All of the physical quantities and basic equations of plane problem are expressed in terms of complex variable form. From the equilibrium equations, the complex stress functions are introduced.
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