50 descendants of 86612195ab3cc6ba

2002-07-15
12:50:51
The solution vector (_ui) is no longer re-zeroed each step.
Retaining the previous value appears to give dramatically better performance.

Messages to the console are now buffered through clog instead of using cerr. check-in: eb84d8e84b user: geraint@users.sourceforge.net tags: origin/master, trunk

2002-07-14
19:02:51
Improved handling of new plot windows - multiplot and other options affect the new window instead of always controlling the first. check-in: ae9d5867bb user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-07-12
15:18:55
Added xMTT to menubar. check-in: d892e06ada user: geraint@users.sourceforge.net tags: origin/master, trunk
15:13:17
Added the ability to load and save gnuplot instructions to file.
Added grid and co-ordinate options.
Moved print option into menubar (under File).
check-in: 22d10f4c89 user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-07-11
20:46:37
Added multiplot feature allowing graphs to be overlaid. check-in: 0aca95f6ff user: geraint@users.sourceforge.net tags: origin/master, trunk
13:00:23
Declared more function arguments to be "const" - improves compiler optimisation. check-in: 5f9fba536f user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-07-10
17:43:05
Added feature [ 562453 ] Optimisation of algebraic equations. check-in: 2622e9031d user: geraint@users.sourceforge.net tags: origin/master, trunk
15:52:17
Updated from main branch. Leaf check-in: 324f841c3c user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
15:22:30
Updated from main branch. check-in: df5f842a8c user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
15:02:33
Updated from main branch. check-in: 4749685170 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
14:55:19
Created branch optimise-algebraic-equations check-in: d7af98a1ba user: gawthrop@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
11:53:32
Replaced shell loop with template expansion - perceptibly quicker generation of sympar.h. check-in: e560dd6a8b user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-07-05
13:29:34
Added notes about generating dynamically linked functions for Octave and Matlab. check-in: 535d6c030c user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-07-04
21:34:12
Updated gnuplot view description to describe Tcl/Tk interface instead of obsolete txt method. check-in: 44ba86945a user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-06-28
15:35:47
Commented out aej.r generation (not used yet). check-in: c8e99b135f user: geraint@users.sourceforge.net tags: origin/master, trunk
10:13:40
Includes fix_c.r in ese2rdae and def2write_r to eliminate occurrances of x**y. check-in: 7c60b4e8be user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-06-21
20:02:34
New identification representation check-in: a66095af7e user: gawthrop@users.sourceforge.net tags: origin/master, trunk
13:30:59
Reformat input line for rates and outputs as well as algebraic equations. check-in: a5d8bcd452 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
2002-06-18
18:04:12
Relaxed solver tolerances. Now uses lsqnonlin instead of fsolve. check-in: 81c5547cbf user: geraint@users.sourceforge.net tags: origin/master, trunk
18:03:16
Appended "memory" blocks to plant model outputs to break simulink algebraic loops. check-in: ecb4011cd5 user: geraint@users.sourceforge.net tags: origin/master, trunk
16:56:51
Trying to get optimisation to work with maxima. check-in: 878c509228 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
2002-06-17
14:30:34
Does not now define Octave functions unless explicitly compiling for STANDALONE or OCTAVEDLD. check-in: 0c91fc17d1 user: geraint@users.sourceforge.net tags: origin/master, trunk
14:28:39
c files now #include sys_cr.h. check-in: 168a121b9d user: geraint@users.sourceforge.net tags: origin/master, trunk
13:14:50
Fixed some rules to reduce number of implicit rule searches. check-in: 9eeb158052 user: geraint@users.sourceforge.net tags: origin/master, trunk
08:50:00
Changed pattern to prevent 'max(' from being translated to 'mamttx('. check-in: 623234b6c9 user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-06-11
11:25:25
No longer delay the simulated data. check-in: ecd25de368 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
2002-06-10
23:22:16
Fixed problem with Matlab fsolve failing because of "user function returned Inf or Nan" (fsolve.m, line 245). check-in: 718f8cde73 user: geraint@users.sourceforge.net tags: origin/master, trunk
23:20:14
Commented out definition of bool - problematic if declared elsewhere. check-in: 53aac86d96 user: geraint@users.sourceforge.net tags: origin/master, trunk
23:18:44
Adjusted cr.h comment delimiters to be C compliant. check-in: e24b2700be user: geraint@users.sourceforge.net tags: origin/master, trunk
23:00:24
typo. check-in: 9421f43e15 user: geraint@users.sourceforge.net tags: origin/master, trunk
22:55:48
Corrected broken test for debug. check-in: 9acdf436b1 user: geraint@users.sourceforge.net tags: origin/master, trunk
19:25:00
Replaced dummy check for valid input with a less broken dummy function. check-in: 5ab08d6d57 user: geraint@users.sourceforge.net tags: origin/master, trunk
10:43:19
ode2odes now prerequisite for sim.m and ssim.m check-in: e65c007d3a user: gawthrop@users.sourceforge.net tags: origin/master, trunk
08:58:54
Added versiin for sEMTF check-in: 32f1c6108e user: gawthrop@users.sourceforge.net tags: origin/master, trunk
08:27:33
Updated description check-in: 6c463de05f user: gawthrop@users.sourceforge.net tags: origin/master, trunk
2002-06-06
17:10:25
Added a couple more simplification rules for pow. check-in: 697e0dcbed user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
16:28:45
Eliminated use of variable to pass rhs expression to optimise check-in: c355dc9a3f user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
2002-06-05
23:34:33
Eliminated argument list too long warnings.
Now get a Segmentation Fault with very long equations!
check-in: df4560e091 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
18:23:38
Cosmetic change. check-in: 56f530fcb4 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
17:57:50
Main part of optimisation routine moved to separate file. check-in: 9e8650bb26 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
17:28:00
Cosmetic change. check-in: 96f269ef83 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
17:27:18
commented out incomplete debugging code. check-in: a7340b2ea2 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
15:22:11
fix_c.r called at ese2rdae stage so that pow gets fixed in ae.r. check-in: 64117a2b31 user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
11:14:51
ae.r now generated using def2write_r like cse?.r
fix_c.r called at ese2rdae stage so that pow gets fixed in ae.r.

These changes produce the desired result (optimised algebraic equations) but
have highlighted a problem; when optimisation fails, Reduce does not write
a result. For complicated systems, this can lead to missing assignments in
the resultant code. check-in: ea9834becc user: geraint@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk

10:54:13
Created branch optimise-algebraic-equations check-in: 28ad1630ec user: gawthrop@users.sourceforge.net tags: origin/optimise-algebraic-equations, trunk
10:54:12
#include "useful-functions.hh" added to files. check-in: e168fd1202 user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-05-29
18:40:43
Made file C compliant. check-in: 27de151df7 user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-05-28
22:52:48
Starting to move rep into single file. check-in: 5cb35287c8 user: geraint@users.sourceforge.net tags: origin/master, trunk
18:08:38
Fixed [ 547294 ] CRs are not sought from MTT_CRS. check-in: e4e5e97c5b user: geraint@users.sourceforge.net tags: origin/master, trunk
2002-05-27
15:30:41
Replaced awk with gawk (managed to unlock file at last). check-in: aead96b7ab user: geraint@users.sourceforge.net tags: origin/master, trunk
15:18:48
Trying to get rid of this! check-in: 86612195ab user: geraint@users.sourceforge.net tags: origin/master, trunk

MTT: Model Transformation Tools
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