sign function

基本解释

Furthermore, in order to reduce the chattering phenomenon, the sign function in sliding-mode controller is replaced by the saturation function.
进而，在滑模控制器中又引入饱和函数取代符号函数，进一步减弱“抖振”现象。
Using multi-layer perceptions network of sign function, a helicopter inverse dynamic model based on neural network, taking SH-2G as an example, is established.
以SH-2 G直升机辨识模型为对象，采用开关作用函数的多层感知器网络，建立了直升机的动态逆神经网络模型。
On the basis of analyzing the control step for ice conversing to hydrate and introducing the sign function, the unreacted core shrinking model for hydrate formation was proposed.
在对冰转化为水合物控制步骤分析的基础上，引入符号函数并提出一个改进的未反应核收缩模型来描述冰转化为水合物的动力学。

And the reason that we now on the second line have the equal sign is because this function GetString has what's called a return value.
我们之所以,在第二行代码GetString前面加上等号,是因为这个函数会带回一个,返回值。
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