TF of Laplace transform of squareroot

Hello,

This could be an easy question for many but for the life of me i could not solve it

I have a

syms x y
laplace(sqrt(x))
ans =
 
pi^(1/2)/(2*s^(3/2))

Now I want to convert laplace domain Numerator and denominator to TF(num,den) so that i can use it further.

How to achieve this?

Answer 1

[Aman Vyas]

Hi,

For that you can simply use ilaplace function as ilaplace corresponds to inverse laplace which is used for converting s domain to t domian (time) and hence you'll obtain numerator and denominator form transfer function.

Here is the documentation link:

https://in.mathworks.com/help/symbolic/ilaplace.html

Hope this helps!

[RAN]

Hi,

No I do not want to convert it to time domain but in transfer function format. In time domain the function will be in exponential form, this does not make sense.

[Aman Vyas]

Try using tf function and then choose specific command type accordingly in the manner you want your transfer function to look like.

Here is the documentation link:

https://www.mathworks.com/help/control/ug/transfer-functions.html

Hope this helps !

[RAN]

Hi Aman,

I tried that, tf function from Matlab does not handle fractional powers