ilaplace with rootof question

5 次查看（过去 30 天）
Andrew
Andrew 2013-3-28
Hi all,
I have a question with inverse laplace transform with my function.
My function is as follows:
(s^3 + (8323294838784001*s)/8192)/(s^4 + 1872229900000*s^2 + 844381359599999923519488)
after using the ilaplace transform on it, it becomes this:
sum((r15^2*exp(r15*t))/(4*(r15^2 + 936114950000)), r15 in RootOf(s15^4 + 1872229900000*s15^2 + 844381359599999923519488, s15)) + (8323294838784001*sum(exp(r15*t)/(4*(r15^2 + 936114950000)), r15 in RootOf(s15^4 + 1872229900000*s15^2 + 844381359599999923519488, s15)))/8192
I would like to ask what is the meaning of r15 in RootOf? I assume s15 is a variable that is declared in this answer.
any insights with regards to this?

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Encryption / Cryptography 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by