在工厂进行教育实习时,曾看到机械工人和生产技术人员,在实际生产过程中都采用一些近似方法,作出正 n 边形,当边数增多时,其误差增大。为了力求作图正确,我们特参考一些有关资料,综合得出下列作法,误差较小,适合一般应用。在未介绍正 n...在工厂进行教育实习时,曾看到机械工人和生产技术人员,在实际生产过程中都采用一些近似方法,作出正 n 边形,当边数增多时,其误差增大。为了力求作图正确,我们特参考一些有关资料,综合得出下列作法,误差较小,适合一般应用。在未介绍正 n 边形近似作法之前,我们来证明一个引理。然后介绍,若知道 n 边形的近似作图,求出(n+1)边形的近似作图,并证明其精确程度。展开更多
The one dimensional Schrodinger equation associated with a time-dependent Morse potentials is studied. We use the invariant operator method （Lewis and Riesenfeld） to obtain approximate solution of the Schrodinger eq...The one dimensional Schrodinger equation associated with a time-dependent Morse potentials is studied. We use the invariant operator method （Lewis and Riesenfeld） to obtain approximate solution of the Schrodinger equation in terms of solution of second order ordinary differential equation describes the amplitude of the Morse potentials.展开更多
文摘在工厂进行教育实习时,曾看到机械工人和生产技术人员,在实际生产过程中都采用一些近似方法,作出正 n 边形,当边数增多时,其误差增大。为了力求作图正确,我们特参考一些有关资料,综合得出下列作法,误差较小,适合一般应用。在未介绍正 n 边形近似作法之前,我们来证明一个引理。然后介绍,若知道 n 边形的近似作图,求出(n+1)边形的近似作图,并证明其精确程度。
文摘The one dimensional Schrodinger equation associated with a time-dependent Morse potentials is studied. We use the invariant operator method （Lewis and Riesenfeld） to obtain approximate solution of the Schrodinger equation in terms of solution of second order ordinary differential equation describes the amplitude of the Morse potentials.
