Matrix of derivatives

[ptc-1793698]

Hello!

I have here a problem then trying to find a matrix of derivatives.
I can create there a matrix of values using a function, but I fail then wanting to create a similar matrix but using a kind of derivative of the initial function.
KL

[Fred_Kohlhepp]

Does this help?


Fred Kohlhepp
fkohlhepp@sikorsky.com

[ptc-1793698]

Thank you for the answer

Did you take a derivative of frequency?
Well, this was not the case. In this expression for Z there are other variables in respect that I would like to have derivatives (names of these are messy, this is not nice of me). Frequency is the only variable the derivative is not needed. But there are other variables in respect derivatives as a function of frequency are needed.
KL

[RichardJ]

Define your expressions as functions. Then calculate the matrices of values at the end.

Richard

[ptc-1793698]

Thank you!

This is suitable for me.

Kl

[ptc-1368288]

On 10/8/2009 11:58:19 AM, jmG wrote:

>On 10/8/2009 10:55:27 AM, KristjanLaes

>wrote:

>>Thank you!

>>

>>This is suitable for me.

>>

>>Kl

>________________________

>

>No comment: don't know what you mean.

>"suitable"... what is suitable, what is

>not suitable ?

>

>jmG

>_______________________



Do you really understand how your project is done ? Done like any project I have tutored in this collab, i.e: you carry scalar maths as long as you need and define all the parts that need be scalar ... then, as needed in the course of the project, you discretize for any part to be an export, visible easy to trace and debug.

In there, you need:

1. two green scalar maths

2. then 4 yellow discretized functions & subfunctions



All done neat, clean, presentable,

can model other projects on this typical,

export any part of the project,

traceability at all points in the project.



Mathcad is such a perfect math tool from their "visionary genius designers", you have to hold the Mathcad hand for years like a child holding Grandpa's hand. Unfortunately, too many "collabs" are just casual visitors to this collab, which collab is the place where you can step ahead of the qs.



jmG

[ptc-1793698]

Dear jmG,

I am sorry, I am that casual user perfectly matching your definition. I didn't even look at your reply after having a thought � oh, that's it , no more thinking, hit the gas!
Really,
but yes, this is sad.

KL

[ptc-1368288]

On 10/20/2009 6:11:57 AM, KristjanLaes wrote:

>Dear jmG,

>

>I am sorry, I am that casual

>user perfectly matching your

>definition. I didn't even look

>at your reply after having a

>thought � oh, that's it , no

>more thinking, hit the gas!

>Really,

> but yes, this is sad.

>

>KL

______________________________



I don't understand your last two plots. Up to these two plots your project was done in 1 page, the Mathcad way. You don't understand how to work with scalar maths and switch as required to discretized maths. If you don't want to frame your work on the models reposted !



>I didn't even look at your reply<<br>


==> you should have !!!

What is the point looking for help (in this case for the project done from A ...Z) and not looking at the replies you get. From recollection, you had several collabs taking care. On my work sheet, try to plug what you think you want for these last two plots, it could be some collabs will look at it, explain in words +++



jmG