Learn how easy it is to sync an existing GitHub or Google Code repo to a SourceForge project!

qucs-devel — Development related topics. Please subcribe before posting.

You can subscribe to this list here.

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov (5) Dec (4) Jan (12) Feb (9) Mar (2) Apr (9) May (15) Jun (2) Jul Aug Sep (4) Oct (5) Nov (4) Dec Jan (3) Feb (11) Mar (9) Apr (26) May (10) Jun (1) Jul (10) Aug (2) Sep (8) Oct (15) Nov (8) Dec (15) Jan (53) Feb (21) Mar (26) Apr (20) May (30) Jun (22) Jul (24) Aug (36) Sep (61) Oct (21) Nov (7) Dec (8) Jan (30) Feb (43) Mar (40) Apr (59) May (8) Jun (19) Jul (34) Aug (35) Sep (9) Oct (9) Nov (66) Dec (36) Jan (22) Feb (42) Mar (19) Apr (25) May (36) Jun (16) Jul (31) Aug (16) Sep (27) Oct (25) Nov (36) Dec (24) Jan (38) Feb (20) Mar (62) Apr (81) May (53) Jun (5) Jul Aug (1) Sep (2) Oct (9) Nov (8) Dec (5) Jan (1) Feb Mar (1) Apr May Jun Jul Aug (3) Sep Oct (2) Nov (2) Dec (10) Jan (4) Feb (6) Mar (29) Apr (19) May (4) Jun Jul (2) Aug (2) Sep (1) Oct (3) Nov (13) Dec (3) Jan (2) Feb (3) Mar (3) Apr (1) May (7) Jun (3) Jul (4) Aug (1) Sep Oct (6) Nov (6) Dec (4) Jan (41) Feb (8) Mar (14) Apr (15) May (15) Jun (95) Jul (91) Aug (20) Sep (19) Oct (47) Nov (29) Dec (55) Jan (56) Feb (7) Mar (16) Apr (14) May (3) Jun (2) Jul (3) Aug (2) Sep (4) Oct (10) Nov (35) Dec (51) Jan (31) Feb (28) Mar (4) Apr (31) May (6) Jun (1) Jul Aug Sep Oct Nov Dec
S M T W T F S

1

2

3

4
(3)
5
(3)
6
(1)
7

8

9
(2)
10

11
(1)
12

13

14

15

16

17

18

19

20

21

22

23

24

25

26
(1)
27
(5)
28
(4)
29

30

31

Showing 3 results of 3

 Re: [Qucs-devel] Adams methods From: Soeren D. Schulze - 2013-08-04 20:46:20 ```Another reason why we should drop them: To work properly, the predictor needs the derivative of the solution, which we don't have (for fundamental reasons). What does the code do to obtain the derivative? First-order divided differences. So the Adams predictor is, in general, only 1st order for any number of steps. And it's probably worse than explicit Euler because polynomial extrapolation amplifies errors a lot. There *are* better methods for numerical differentiation: you could first do polynomial interpolation and derive that. But because the next step is integrating the polynomial, you end up with exactly the BDF predictor (one order higher). So while it is possible to use the Adams corrector with the BDF predictor, it's no more an actual Adams method. So, I don't see any educational purpose to keep Adams methods, either, because they just don't work the way they are intended. Do you agree? Sören ```
 Re: [Qucs-devel] Parsing of Datafile with Python From: Frans Schreuder - 2013-08-04 19:20:15 ```Hi Clemens, That is nice. I don't know if it belongs more to qucs-core than qucs. all tools are subdirectories of qucs and when distributed, also qucs-core is a subdirectory. Anyway good work! Frans Op 4 aug. 2013 20:44 schreef "Clemens Novak" het volgende: > Hi, > > I added a python file which allows parsing of qucs datafiles (similar > to the functions for octave already available): it allows parsing of > nested simulation results (e.g. simulation results from an ac-sweep and > a parameter sweep). I added an example as well and will add more > information to the qucs "textmode" documentation. > > I'm happy for any input / error messages. > > Wouldn't it be better to relocate the octave & python directories > (currently located under qucs/qucs) to qucs-core; e.g. qucs-core/data/? > > Regards - Clemens > > > ------------------------------------------------------------------------------ > Get your SQL database under version control now! > Version control is standard for application code, but databases havent > caught up. So what steps can you take to put your SQL databases under > version control? Why should you start doing it? Read more to find out. > http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk > _______________________________________________ > Qucs-devel mailing list > Qucs-devel@... > https://lists.sourceforge.net/lists/listinfo/qucs-devel > ```
 [Qucs-devel] Parsing of Datafile with Python From: Clemens Novak - 2013-08-04 18:43:51 ```Hi, I added a python file which allows parsing of qucs datafiles (similar to the functions for octave already available): it allows parsing of nested simulation results (e.g. simulation results from an ac-sweep and a parameter sweep). I added an example as well and will add more information to the qucs "textmode" documentation. I'm happy for any input / error messages. Wouldn't it be better to relocate the octave & python directories (currently located under qucs/qucs) to qucs-core; e.g. qucs-core/data/? Regards - Clemens ```

Showing 3 results of 3