The Schrodinger equation of time - dependent harmonic oscillator is solved by the time space transformation, and its application in physics is presented.
利用时空变换法求解含时谐振子的薛定谔方程，并对这类问题在物理上的应用作了说明。
A helix equation of time-varying pitch is established, revolving elliptic cylinder as equal angular velocity and rising as variable velocity at the same time.
建立了绕椭圆柱面以等角速度旋转，又以变速度上升的非定常螺距的螺旋线方程。
The conclusion shows that the optimal strategy of predator is the quadratic equation of time and the profit is the descending function of temporary impact coefficient.
结论表明，捕食者的最优交易策略为时间的二次曲线形式，并且捕食交易利润是瞬时冲击系数的单调减函数。
The conclusion shows that the optimal strategy of predator is the quadratic equation of time and the profit is the descending function of temporary impact coefficient.
结论表明，捕食者的最优交易策略为时间的二次曲线形式，并且捕食交易利润是瞬时冲击系数的单调减函数。
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