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[MATHCAD] another bug

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[MATHCAD] another bug
Author: Kenneth R Foster    Posted: Tue, 14 Sep 1999 14:21:26 -0400
there is another bug with ver. 8 that leads to incorrect answers -- if you change units in a calculation, the calculation sometimes will not update. Turn off the optimization, and type fathom:= 6*ft A:= 1*fathom A= the program gives the correct results. Then type A= *mm (i.e. ask for the results in mm) the program will not update the result if you change the value of A in the earlier line. Mathsoft has known about this since June, but has not corrected it yet. Gave me lots of trouble! Ken Foster Kenneth R Foster Department of Bioengineering University of Pennsylvania 220 S. 33rd St. Philadelphia PA 19104-6392 215-898-8534 (office) fax (reflects to my email) 1-888-514-3577 Chair, EMBS Committee on Man and Radiation 1997- ***************************************************************************** SSIT Website: http://www4.ncsu.edu/unity/users/j/jherkert/ COMAR website http://homepage.seas.upenn.edu/~kfoster/comar.htm Blurb for latest book http://homepage.seas.upenn.edu/~kfoster/book.htm Recent Papers http://homepage.seas.upenn.edu/~kfoster/papers.htm ------------------------------------------------------------- The Mathcad List - Discussion, Support & News Contributions: /> To unsubscribe: Send in the body: unsubscribe mathcad To: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/

SV: [MATHCAD] another bug
Author: Lars-Erik Nilsson    Posted: Wed, 15 Sep 1999 08:09:51 +0200
Unfortunately I find that it is quite common that Mathcad ver8.03 forgetts to recalculate parts of the worksheet. Especially if I have been doing a lot of editing I will very often find that some equations are not recalculated or some graphs not updated. F9 does not help. However "Recalcluate Worksheet" does seem to help. It is however very disturbing no to be able to trust the results due to such an "easy to fix" (I imagine) software bug. Lars-Erik Nilsson ISD/Instrument Systems Development email: /> mob: +46 - 70 - 760 38 43 tel/fax: +46 - 8 - 556 700 70 Box 756 S-120 02 Årsta Sweden ----- Ursprungligt meddelande ----- Från: Kenneth R. Foster /> Till: /> Skickat: den 14 september 1999 20:21 Ämne: [MATHCAD] another bug > there is another bug with ver. 8 that leads to incorrect answers -- if you > change units in a calculation, the calculation sometimes will not update. > > Turn off the optimization, and type > > fathom:= 6*ft > A:= 1*fathom > A= > > the program gives the correct results. > Then type > > A= *mm > > (i.e. ask for the results in mm) > the program will not update the result if you change the value of A in the > earlier line. > > Mathsoft has known about this since June, but has not corrected it yet. > Gave me lots of trouble! > > Ken Foster > > > Kenneth R Foster > Department of Bioengineering > University of Pennsylvania > 220 S. 33rd St. > Philadelphia PA 19104-6392 > 215-898-8534 (office) > fax (reflects to my email) 1-888-514-3577 > Chair, EMBS Committee on Man and Radiation 1997- > ***************************************************************************** > SSIT Website: http://www4.ncsu.edu/unity/users/j/jherkert/ > COMAR website http://homepage.seas.upenn.edu/~kfoster/comar.htm > Blurb for latest book http://homepage.seas.upenn.edu/~kfoster/book.htm > Recent Papers http://homepage.seas.upenn.edu/~kfoster/papers.htm > ------------------------------------------------------------- > The Mathcad List - Discussion, Support & News > Contributions: /> > To unsubscribe: Send in the body: unsubscribe mathcad > To: /> > Hosted by: Adept Scientific http://www.adeptscience.com > List Archive: http://lists.adeptscience.co.uk/ ------------------------------------------------------------- The Mathcad List - Discussion, Support & News Contributions: /> To unsubscribe: Send in the body: unsubscribe mathcad To: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/

RE: [MATHCAD] another bug
Author: Pergande, Albert N    Posted: Fri, 24 Sep 1999 22:59:55 -0400
There is a possibly related issue I run into when editing. Fairly innocent cut and paste operation will give me a total crash. Sometimes I can save, sometimes not. It's not repeatable. > -----Original Message----- > From: Lars-Erik Nilsson /> > Sent: Wednesday, September 15, 1999 2:10 AM > To: /> > Subject: SV: [MATHCAD] another bug > > Unfortunately I find that it is quite common that Mathcad ver8.03 forgetts > to recalculate parts of the worksheet. > Especially if I have been doing a lot of editing I will very often find > that some equations are not recalculated or some graphs not updated. F9 > does not help. However "Recalcluate Worksheet" does seem to help. It is > however very disturbing no to be able to trust the results due to such an > "easy to fix" (I imagine) software bug. > > Lars-Erik Nilsson > ISD/Instrument Systems Development > email: /> > mob: +46 - 70 - 760 38 43 > tel/fax: +46 - 8 - 556 700 70 > Box 756 > S-120 02 Årsta > Sweden > > > ----- Ursprungligt meddelande ----- > Från: Kenneth R. Foster /> > Till: /> > Skickat: den 14 september 1999 20:21 > Ämne: [MATHCAD] another bug > > > > there is another bug with ver. 8 that leads to incorrect answers -- if > you > > change units in a calculation, the calculation sometimes will not > update. > > > > Turn off the optimization, and type > > > > fathom:= 6*ft > > A:= 1*fathom > > A= > > > > the program gives the correct results. > > Then type > > > > A= *mm > > > > (i.e. ask for the results in mm) > > the program will not update the result if you change the value of A in > the > > earlier line. > > > > Mathsoft has known about this since June, but has not corrected it yet. > > Gave me lots of trouble! > > > > Ken Foster > > > > > > Kenneth R Foster > > Department of Bioengineering > > University of Pennsylvania > > 220 S. 33rd St. > > Philadelphia PA 19104-6392 > > 215-898-8534 (office) > > fax (reflects to my email) 1-888-514-3577 > > Chair, EMBS Committee on Man and Radiation 1997- > > > ************************************************************************** > *** > > SSIT Website: http://www4.ncsu.edu/unity/users/j/jherkert/ > > COMAR website http://homepage.seas.upenn.edu/~kfoster/comar.htm > > Blurb for latest book http://homepage.seas.upenn.edu/~kfoster/book.htm > > Recent Papers http://homepage.seas.upenn.edu/~kfoster/papers.htm > > ------------------------------------------------------------- > > The Mathcad List - Discussion, Support & News > > Contributions: /> > > To unsubscribe: Send in the body: unsubscribe mathcad > > To: /> > > Hosted by: Adept Scientific http://www.adeptscience.com > > List Archive: http://lists.adeptscience.co.uk/ > > ------------------------------------------------------------- > The Mathcad List - Discussion, Support & News > Contributions: /> > To unsubscribe: Send in the body: unsubscribe mathcad > To: /> > Hosted by: Adept Scientific http://www.adeptscience.com > List Archive: http://lists.adeptscience.co.uk/ ------------------------------------------------------------- The Mathcad List - Discussion, Support & News Contributions: /> To unsubscribe: Send in the body: unsubscribe mathcad To: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/

RE: [MATHCAD] another bug
Author: J Wood    Posted: Mon, 27 Sep 1999 10:30:18 +0100
Yes, I get these crashes fairly often. The other common crashes I get when pressing F1 for help. I lost so much work to some of those that I now no longer feel safe to use the online help. Another advertised feature not available in practise? At 22:59 24-09-99 -0400, you wrote: >There is a possibly related issue I run into when editing. Fairly innocent >cut and paste operation will give me a total crash. Sometimes I can save, >sometimes not. It's not repeatable. > John Wood Peak Design & Development Tel/Fax 01629 650264 ------------------------------------------------------------- The Mathcad List - Discussion, Support & News Contributions: /> To unsubscribe: Send in the body: unsubscribe mathcad To: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/

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