I am getting multiple overlapped plot while plotting for vk(t) vs ik(t)

[vveeran]

Dear All,

I was trying to plot vk(t) vs ik(t). I am supposed to get only single plot for vk(t) vs ik(t).

I am getting multiple overlapped plot while plotting for vk(t) vs ik(t).

The mathcad code is attached below.

My interest is, I need to only one plot for vk(t) vs ik(t).

Could anyone rectify this problem. (I am using Mathcad 15 software)

Thanks in advance

[ttokoro · Accepted solution]

Increase the numberof t2.

[vveeran]

@ttokoro Thanks a lot for your instant reply

[Werner_E]

Sometimes (not always) its a good idea to use Mathcads Quickplot feature and let it chose the step width automatically:

tt is not defined anywhere.

Is there a reason for the strange stepwith 1/w you defined and why you don't start the parameter at zero?

Your sine vk has a period of somewhat lower than 10, so when you run t from 0 to L1 (approx. 200) then you are looping through your "8"-curve 20 times.

Your range t2 starts from approx 150 so the curve still is looped through 5 times. This and the fact that you had chosen a large stepwidth and because Mathcad connects the points calculated by straight lines created the effect you saw.

 

[vveeran]

Thanks for your valuable comments.

And your plot vk(tt) and ik(tt). It is defined anywhere in the prograrm, does mathcad will consider tt as automatically.

I have used 1/w to mention the frequency.