Problem on scale-invariance, rotation-invariance and translation-invariance can be solved with this method.
解决了尺度变化、旋转和平移不变性问题。
The derivation methods of Lorentz transformation according to invariance of light speed and principle of relativity are commented.
评论了仅仅依据光速不变假设和相对性原理推导洛伦兹变换公式的方法。
By using the invariance property of VSC, the controlled system independent of the uncertainty which satisfies the matching condition on the sliding surface.