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mark_neil21-Visitor
1-Visitor
December 22, 2010
Question

taking inverse laplace

  • December 22, 2010
  • 1 reply
  • 5070 views

Hi,

I want to take inverse laplace of an transfer fucntion that I have generated by analysis of a circuit and I am having difficulty with it. Please see the attached file. It is saved in MC13. The parameters x1, x2, x3 are initial conditions of caps and they are real and positive numbers.

The second equation takes the inverse laplace once numbers assigned to x1, x2, x3. But I want to calculate the inverse laplace in equation 3 as a function of x1, x2, x3 as parameters. Then I will replace x1, x2, x3 with some equations once the inverse laplace is found.

How can I calculate the inverse laplace of equation (1) having x1, x2, x3 as parameters in the solution?

Thanks.

Mark.

1 reply

M
MikeArmstrong1-Visitor
1-Visitor
December 22, 2010

Like the attached?

Mike

M
mark_neil21-VisitorAuthor
1-Visitor
December 22, 2010

Hi Mike,

Thanks for your reply. However, I use MC13 and I couldn't open the file you attached. I asked a friend to open it in MC15 and save it in MC13 for me. After I open it in MC13, it didn't work. I am looking for solution that works with Maple symbolic engine in MC13. I understand you replaced s with s^-1. For some reason it still doesn't take the inverse laplace. MC15 takes the inverse laplace of the same function. That means the solution exists.

By the way, can we replace s with 1/s in taking inverse laplace anytime I want?

Thanks.

Mark.

M
MikeArmstrong1-Visitor
1-Visitor
December 22, 2010

Re-saved in M11 format.

Mike

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