polar_circle.mw

It is a problem which exists in my mind for a long time. Can any one give me some advices? Thank you!

Best regards!

TaiChi.mw

Hello,

The appendant is a figure I generated in a leisure time a fews days ago. There exist 3 problems, I feel they are a  challenge to me. The third problem is:How to rotate the figure automatically? Like this. Can you give me some advices? Thank you very much! Best Regards!

Hi,

I use maple to verify some examples in my textbook. The followings are two warnings which I came across.

1.

> with(DynamicSystems); sys := TransferFunction((1+.2*s)/(1+.1*s));
> ResponsePlot(sys, Step());

When running the codes above, a warning appears unexpectly.
Warning, cannot evaluate the solution past the initial point, problem may be complex, initially singular or improperly set up

With this question, I...

Hello,

I want to generate a source component,namely,acceleration function,y(t)=(1/2)*t^2,where y(t) is output of the component. Is there any way to generate it?

By the way,I find a component,named 'Real Expression',which located in Signal Blocks\Sources\Real. I thought it may solve my problem,but after reading the help document,I felt the description was too simple to understand. Can you give me an example of how it can be used?

Thank you!

cart.msim

Hello,

I use maplesim to construct a cart, which is controlled by a DC magnet. As the model in the document illustrated, the cart is drived by a prismatic, and there is a rigid body frame between the cart and the prismatic. This rigid body frame is used to sustain the cart....