## 30 Reputation

13 years, 123 days

Thanks a lot!!!

Thanks a lot!!!

## Sorry for stupid question! I've already ...

Sorry for stupid question! I've already solved..

## Problem solved...

Woa, that's great.. Thank you Duncan for your help!!

## Problem solved...

Woa, that's great.. Thank you Duncan for your help!!

## Wrong formula...

Thank you Duncan.. In the previous post I was wrong, the formula I want to obtain is:

ωpeak = ωn*sqrt(1 - 2*zeta^2)

And I can't understand why it returns me

I*zeta*Omega

Omega*sqrt(1-2*zeta^2)

Thank you for help!

## Wrong formula...

Thank you Duncan.. In the previous post I was wrong, the formula I want to obtain is:

ωpeak = ωn*sqrt(1 - 2*zeta^2)

And I can't understand why it returns me

I*zeta*Omega

Omega*sqrt(1-2*zeta^2)

Thank you for help!

## Problem solved.. Thanks!...

Problem solved.. Thanks!

## Problem solved.. Thanks!...

Problem solved.. Thanks!

## Evaluate the magnitude/phase at a certai...

Do you know if in Maple 15 there's a way such as in matlab with the command evalfr(G,w) to evaluate the magnitude of the transfer function at a certain frequency? Is it possible to evaluate also the corresponding phase?

## Evaluate the magnitude/phase at a certai...

Do you know if in Maple 15 there's a way such as in matlab with the command evalfr(G,w) to evaluate the magnitude of the transfer function at a certain frequency? Is it possible to evaluate also the corresponding phase?

## Problem solved...

What a stupid error, now it works as expected..

Thank you!!

## Problem solved...

What a stupid error, now it works as expected..

Thank you!!

## Thank you for help!!...

Thank you for help!!

## Thank you for help!!...

Thank you for help!!

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