[mathcad] RE: Weird editor bugs (again)

Author: Andy Spragg Posted: Wed, 5 Oct 2005 17:46:50 +0100

Rod

(cc Mathsoft, for info and [hopefully] action; please see thread on Adept
Scientific's Mathcad discussion forum)

"?and it went away?". ? . Do you mean you can't reproduce the symptom now?
Or are you just referring to Mathcad's amazing disappearing act?

I've checked the manual now, and it seems Backspace and Delete are
partners in crime (I probably use Backspace as well as Delete when editing
without even being conscious of doing so now). In summary, it seems like
Backspace deletes to the left of the vertical bar, Delete deletes to the
right, and repetition of either one will end up equivalent to a single one
of same after a drag-select.

So according to how I read the manual, what should happen in the worksheet
I posted, when I click the placeholder to select it with the editing
lines, with vertical bar to the left, and hit Delete, is that the editing
lines should change to a drag-select region, and hitting Delete again
should delete the placeholder. However, the (intended) rules seem to be
slightly different for placeholders than they do for expressions. As
already pointed out, the deletion process works if changed so that the
vertical line is to the right and Backspace is used instead; the first
Backspace deletes the preceding operator and replaces it with an operator
placeholder, and the second Backspace deletes both placeholders together.
So it works, but not exactly how the manual implies it ought to work (or
rather how I infer it ought to work, given the manual only talks about
deleting expressions and does not explicitly mention placeholders). This
would imply that hitting Delete is indeed a legitimate thing to do, and
that doing so ought to replace the following operator with a placeholder,
and doing it again ought to delete both placeholders together. But no. It
seems to open up a black hole and delete Mathcad from memory completely.
Now that's what I call a bug :-)

Andy
****************************************************************

Any opinions expressed in this email are those of the individual and not necessarily of RHM plc and/or any of its subsidiaries.

This email and any files transmitted with it are private, may be confidential and are for the intended recipient only. If you are not the intended recipient, be advised that you have received them in error. Please notify the sender of the error, delete all copies of them from your system and destroy any printed copies.

If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this email and any files transmitted with it.

Please rely on your own anti-virus system. No responsibility is taken by RHM plc and/or any of its subsidiaries for any damage arising out of any bug or virus infection.

****************************************************************

[View Complete Thread]

Previous by date: [mathcad] Re: Weird file read bugs, Eden Mei
Next by date: [mathcad] RE: Weird editor bugs (again), Troyer, Rod
Previous thread: [mathcad] Weird file read bugs, Mark Smith
Next thread: [mathcad] RE: Weird editor bugs (again), Mark Smith

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