将属性确信因子(带有一个分配的实数值)添加到依赖于期望的其他需求类型中(例如，涉众请求，特性等)。

Add the attribute sureness factor (with a real assigned value) to other requirement types that could depend on expectations (e.g., stakeholder requests, features, etc.).

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本文提出一种通过对数复变换求非线性方程实数根数值解的方法。

A method to find real numerical solution of the nonlinear equation by logarithm complex conversion is presented in this paper.

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返回数值的双曲正弦值。！任意实数！

Returns the hyperbolic sine of a number! Is any real number!

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