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J
jeanGiraud1-Visitor
1-Visitor
August 25, 2010
Question

Fourier Notes: fft, cfft

  • August 25, 2010
  • 1 reply
  • 8857 views

This overnight work sheet is subject to:

1. be deleted

2. updated/augmented

3. maintained

Collabs, if you have more that can be helpful: please add and retransmit.

jmG

1 reply

T
TedDiehl,PhD1-Visitor
1-Visitor
August 25, 2010

All,

If you are interested in easier to use Fourier tools and learning about Fourier analysis methods and other tools/methods to handle noisy and challenging data, check out www.BodieTech.com . In particular, check out our Mathcad-based Kornucopia® software and our unique training course "Analyzing Noisy Data via Filtering and DSP".

Ted Diehl

J
jeanGiraud1-VisitorAuthor
1-Visitor
August 25, 2010

Thanks for the invitation.

If the tools behind the scene, i.e: the Mathcad programmes aren't available, then the interest is limited, limited in the sense that what's not traceable does not exist for responsible Engineers. If that software is so "good", why is it not a PTC product ? or at least in the list of links that make up the "PC envergure". You understand my comment: you have Mathcad & Mathcad & Mathcad .... It should then be within this PTC web community, otherwise PTC is like a pie, a pie with 12 portions for 12 persons but missing several portions. Plug your work sheets, if they are "clients proprietary" then no interest. Very many visitors think that p*r is a big secret.

jmG

T
TedDiehl,PhD1-Visitor
1-Visitor
August 25, 2010

Jean,

PTC, like many software companies, partners with solution providers to provide breadth to their basic product offering. Bodie Tech, developers of Kornucopia®, is a PTC Silver Software Partner and our Kornucopia® software is highlighted in the newly released Mathcad 15 as one of three partners listed under the Tools Menu directly in MC 15. Bodie Tech and Kornucopia® is also an Abaqus Solutions Partner.

Relative to your comment about seeing what is behind Kornucopia® functions, Kornucopia® is very well documented with lots of information and examples demonstrating the methods used in the underlying calculations. Have you downloaded it and looked at our help system or looked at all the information on our website?

Relative to your comment "If the tools behind the scene, i.e: the Mathcad programmes aren't available, then the interest is limited, limited in the sense that what's not traceable does not exist for responsible Engineers", I must strongly disagree with your position. How do you allow yourself to use Mathcad's FFT function or any other function in Mathcad or its extension packs for that matter - you cannot see the underlying C coding that these functions are written in. Responsible engineers do not need to see raw code to use software responsibly and properly - do users of Abaqus (a non linear FEA code) require to see its underlying raw C code? Responsible engineers should make sure that software they use is accurate and that they understand what it is doing. Kornucopia® has more documentation than Mathcad itself in this regard relative to the functionality and features that exist in Kornucopia®.

Lastly, Kornucopia® is written by a long-time Mathcad user, myself, that has been solving real-world problems in industry and research for over 25 years. Here are a couple of quotes relative to the value of our software and other offerings.

"We utilize several easy-to-use Kornucopia® DSP and data processing functions to separate out assembly and disassembly responses, analyze frequency content, and smooth data…All are stored in one Kornucopia worksheet which provides clear traceability ... Kornucopia’s advanced functionalities have enabled us to confidently and quickly post-process FEA and physical test data to make accurate and important engineering decisions.” Arun Nair, Ph.D., Becton Dickinson & Co

“The combination of Mathcad with Kornucopia® allows engineers and medical researches in biomedical engineering to work in close cooperation, exchanging knowledge between professionals with completely different backgrounds. This is achieved by combining calculation power with clear documentation. Kornucopia’s ease of use in combination with straightforward help files and excellent technical support makes it our number one software for nonlinear data analysis.” Professor Filip De Somer, Ph.D., Heart Centre, Universiteit Gent

You may also visit our website (www.bodietech.com) where you will see on our home page several other quotes regarding the value of our products for responsible engineers and organizations needing to solve challenging problems efficiently with accurate, well documented analysis tools and training.

I am sure that if you ask any of the PTC Mathcad leadership, they will also comment similarily.

Regards,

Ted Diehl, PhD

President, Bodie Technology, Inc

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