[mathcad] RE: Mathcad 7 to Mathcad 11 Problem

Author: Potter, Mick Posted: Mon, 10 Oct 2005 11:50:05 +0100

I think that ver7 had a shortcut method of multiplication. If it found a
zero in the expression, it didn't look any further, but just returned zero.
It wouldn't have looked at x[n-m.

I think that 11.2 checks each element, and so x[n-m is seen as out of range.

I don't think this "feature" can be switched off in 11.2, but I'd be happy
to be told otherwise.

==
Mick
|From: Bill E Dumke "mailto:Bill.Dumke"
|Sent: 7 October 2005 19:46
|To: Mathcad Discussion List
|Subject: [mathcad] Mathcad 7 to Mathcad 11 Problem
|
|I was trying to get this example (Example 2.10) from "An Introduction to
|Digital Signal Processing with Mathcad" to run in Mathcad 11.2a. It was
|originally part of an e-book using the Mathcad 7 engine. And it works
|fine using the Mathcad 7 engine supplied with the book.
|
|Attached is a Mathcad 11.2a file. I get an error message when trying to
|do the aperiodic convolution given by the expression for y.
|
|I suspect there is a syntax difference between Mathcad 7 and 11.2a
|preventing it from running.
|
|How can I get this to run in Mathcad 11.2a?
|
|Note that running the e-book directly from Mathcad 11.2a results in the
|same error message, so I don't believe there is any error in my typing
|of the expression itself.
|
|Bill
|
|______________________________________________________________________
|This email has been scanned by the MessageLabs Email Security System.
|For more information please visit http://www.messagelabs.com/email
|______________________________________________________________________

This e-mail plus any attachments is intended for the addressee only. The information may contain material that is confidential. If you are not the intended recipient, please notify the sender immediately and delete from any computer. Any review, disclosure, distribution, copying, use or other action in reliance on this information is prohibited.

E-mail transmission cannot be guaranteed to be secure or free from error as information can be intercepted, corrupted, lost, destroyed, arrive late or be incomplete. The sender does not therefore accept any responsibilty for errors or omissions in the content of this message.

________________________________________________________________
This message has been checked for all known viruses by the
MessageLabs Virus Control Centre. For further information visit
http://www.messagelabs.com/

[View Complete Thread]

Previous by date: [mathcad] RE: Mathcad 7 to Mathcad 11 Problem, Bruff, Stuart
Next by date: [mathcad] RE: Mathcad 7 to Mathcad 11 Problem, Potter, Mick
Previous thread: [mathcad] Mathcad 7 to Mathcad 11 Problem, Bill E Dumke
Next thread: [mathcad] RE: Mathcad 7 to Mathcad 11 Problem, Bruff, Stuart

Ready to buy?

For more pricing information:
Visit our webstore, call us on +1 800 724 8380 or email us at info@adeptscience.com

Featured Downloads

Mathcad 14 demo

Mathcad 14 Brochure

Mathcad or Excel?

Mathcad Customer Story: Man B&W Diesel

Mathcad Customer Story: Stork Fokker Aerospace

Mathcad White Paper - Moving beyond the limitations of spreadsheets

Product Reviews

"Our work ranges from complex medical imaging research to large-scale mapping and diagrams and we need a tool that is able to handle anything we investigate. With Mathcad, we are able to manipulate and analyse our data quickly while at the same time documenting our work, for sharing and publication. We also use it for pilot studies conducted in support of research grant applications. It is an end-to-end tool for research and development."
Dr. Kenneth Castleman, President of Advanced Digital Imaging Research (ADIR), Houston, Texas

"Mathcad is an integral product for my work... With Mathcad, itís easy to disseminate design calculations because the documents look like real math. Thereís very little I canít do in Mathcad. The main benefits come from the format, which resemble a typed set of calculations. These programs are easier to develop by engineers and easier for others to follow and review since the logic is expressed in a familiar manner. The format is what places Mathcad head and shoulders above other programs of a similar function."
Andre Pavlov, Structural Engineer, Florida Department of Transportation