Raymond Peng

Eight equations for eight coordinates should be enough. And all the parameters have been listed...

Hi There, I just started to use the Matcont and I am solving the ODEs. Attached is the image of the equations. I meet the problem 'Not enough input arguments' when I select symbolically derivatives. I am not sure what is the reason for that. Any help would be appreciated. Thanks! Thanks , Raymond

Hi There, I just started to use the Matcont. I am doing the numerical integration of ODEs. Attached is the image of the equations. In 2D plot, I could plot the ordinates versus time, such as Egsreal. I am wondering if there is any way I can do some processing on the ordinates and plot Egsreal^2+Egsimag^2 versus time. Any help would be appreciated. Thanks , Raymond

It has been solved. Sorry for interrupting you!

Hi There, I just started to use the Matcont. I tried to solve the differential equation. However, when I clicked ok to create the system, I encountered an error statement "Equations are in the wrong order, compared to the coordinates". At the same time, it will automatic create blank rows between equations. Attached is the image of the equations and error. Any help would be appreciated. Thanks , Raymond