尽量尝试将您的扩展函数设计为仅使用双精度、字符串、布尔和节点集作为实参和返回值的类型。

Try to design your extension functions so that they use only doubles, strings, booleans, and node-sets as both arguments and return values.

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双曲三角函数就是对曲线应用三角函数，也就是说，想象将这些点放在笛卡尔平面上来得到t的所有可能值。

The hyperbolic trigonometric functions are to hyperbolae as the trigonometric functions are to circles. That is, imagine you plot these points on a Cartesian plane for all possible values of t.

youdao

从单极性输出改为双极性输出。 （3）改变能量函数使权值修正根据输出误差的大小而改变。

The single-extreme output is replaced by the double-extreme output(3) Changing the energy function updatesweights according to output errors.

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