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Author SHA1 Message Date
Robby Findler
12a288f135 add a checkbox to disable online expansion in the preferences dialog 
(it controls the same state as clicking in the circle in
the bottom right corner of the drracket window)
 2013-01-03 11:00:23 -06:00
Matthew Flatt
42c77d6290 planet2 docs: move and tweak expanation of package-library `require' 2013-01-03 07:34:33 -07:00
Matthew Flatt
e98c308e66 bundle script: fixes for "README" munging 2013-01-03 07:04:29 -07:00
Asumu Takikawa
3885ea7cdd Fix doc typos 2013-01-03 02:27:30 -05:00
Matthias Felleisen
1b07cb4ff9 fixed a @file-is mistake, race? 2013-01-02 18:32:35 -05:00
John Clements
5a4098ffec added docs on requiring planet2 modules 2013-01-02 14:23:42 -08:00
Vincent St-Amour
81cccb4c8f Fix fixnum comparisons to prove more bounds. 2013-01-02 16:55:28 -05:00
Jens Axel Søgaard
9465bc0196 Documentation for inner product space operations 2013-01-02 22:44:39 +01:00
Neil Toronto
cfa9bd9a81 Exported `matrix-basis-cos-angle' with a contractable type 2013-01-02 13:20:42 -07:00
Jens Axel Søgaard
69406bf156 Documentation on basic matrix operations and matrix-qr. 2013-01-02 19:28:05 +01:00
Vincent St-Amour
18389532e7 Move define-inline to racket/performance-hint. 
Move begin-encourage-inline to racket/private for dependencies.
 2013-01-02 12:18:36 -05:00
Jens Axel Søgaard
715b0a7be7 Documentation for polymorphic matrix functions 2013-01-02 18:02:03 +01:00
Robby Findler
ad579d07d6 put the racket version number in the title bar for the splash screen 2013-01-02 10:19:38 -06:00
Matthew Flatt
43e01d7f4e rename test file 
":" is not allowed in a file name on Windows.
 2013-01-02 06:33:10 -07:00
Robby Findler
836ce95343 added section on alpha blending to 2htdp/image guide 2013-01-01 23:13:13 -06:00
Robby Findler
0d0503bda7 adjust sync pattern to avoid cross-thread set! 2013-01-01 23:13:13 -06:00
Robby Findler
0f26aafd1f Adjust DrRacket to not use on-demand to populate the 
teachpack menu.

Instead DrRacket explicitly changes the menu items when
the language changes or when a teachpack is added/removed

Also, Rackety.

Closes PR 13395
 2013-01-01 23:13:00 -06:00
Neil Toronto
e5eb9751f0 Initial `math/matrix' documentation, and some changes 
* At least stubbed out all (or almost all) `math/matrix' exports; many
  have complete documentation (e.g. types, predicates, accessors,
  constructors, for loops, conversion, much of "Comparing Matrices")

* Moved `matrix-zero?' and fixed to use (matrix-error-norm) as its norm

* Added `matrix-basis-cos-angle' (currently a stub; should return smallest
  singular value of a certain matrix multiplication)
 2013-01-01 18:19:43 -07:00
Neil Toronto
5981535686 Made Gaussian elimination faster (half the scaled additions) and more 
accurate (always produces zeros in the lower half)
 2013-01-01 18:19:43 -07:00
Matthew Flatt
3c5135fc7a `expt' repair, again 
Previous repair wasn't general enough; negative powers can also
go wrong.
 2013-01-01 18:05:37 -07:00
Vincent St-Amour
678451f8c4 Fix tests. 2013-01-01 18:14:52 -05:00
Vincent St-Amour
4137eb9e73 Make let: annotations optional. 2013-01-01 18:14:52 -05:00
Matthew Flatt
1f8370d2d6 revise README and "Getting Started" info 
Addresses PR 13356
 2013-01-01 15:55:44 -07:00
Matthew Flatt
b67ca6350c fix doc typo 
Closes PR 13353
 2013-01-01 15:55:44 -07:00
Matthew Flatt
55f98a15d4 racket/gui gtk: make `on-demand' for menus work better 
There appears to be no way to make `on-demand' work right for the
Unity window manager's global menu bar, since there's no notificiation
when the menu bar is clicked. We approximate the correct behavior
by calling `on-demand' when a containing frame loses the keyboard
focus, which might be because the menu bar was clicked; that may be
too late (because the menu has already been shown), but it should
work most of the time.

Closes PR 13347.

Relevant to PR 13395, but DrRacket will have to change to work
around the remaining limitations of `on-demand'.
 2013-01-01 15:55:36 -07:00
Robby Findler
0e763f5b01 check the result of find-ls in the one place it wasn't being checked 
probably closes 13404
 2013-01-01 15:01:13 -06:00
Matthew Flatt
07d5a9e385 fix `expt' on small negative number and large positive odd 
The pow() function apparently gets it wrong on some platforms.

Closes PR 13391
 2013-01-01 12:33:59 -07:00
Robby Findler
974350472c whoops, fix a bug introduced in 0f9674e1dd 2013-01-01 13:12:34 -06:00
Neil Toronto
c29c4056a1 Added back partial pivoting to Gaussian elimination 2013-01-01 12:12:07 -07:00
Matthew Flatt
0097d59635 avoid compiler warning 2013-01-01 12:11:36 -07:00
Robby Findler
0f9674e1dd adjust drracket window size and position preferences to use a different key 
This will make switching back and forth between 5.1.3 and the latest
not lose the frame size and position preferences (since the format
of the data is different now that the current release remembers
the position on a per-monitor-configuration basis)
 2013-01-01 11:26:05 -06:00
Robby Findler
0f64a0ae0d fix handin server error on bad password 2013-01-01 10:58:11 -06:00
Danny Yoo
c70f7d2ed2 Disambiguate sentence on custodian shutdown. 
See:
http://lists.racket-lang.org/dev/archive/2012-December/011373.html

Motivated by Sgeo's question in:
http://racket-lang.org/irc-logs/20121229.txt at 22:10.
 2013-01-01 00:48:50 -08:00
Eli Barzilay
0a0fe1a011 New Racket version 5.3.1.12. 2013-01-01 03:30:13 -05:00
Matthew Flatt
8e8cc301e4 fix dist spec 2012-12-31 17:29:45 -07:00
Neil Toronto
c8e3b45e38 Added QR decomposition tests (mostly a pretty thorough randomized test); 
fixed error in `matrix-cols-orthogonal?' revealed by testing
 2012-12-31 15:20:25 -07:00
Neil Toronto
f5fa93572d Moar `math/matrix' review/refactoring 
* Gram-Schmidt using vector type

* QR decomposition

* Operator 1-norm and maximum norm; stub for 2-norm and angle between
  subspaces (`matrix-basis-angle')

* `matrix-absolute-error' and `matrix-relative-error'; also predicates
  based on them, such as `matrix-identity?'

* Lots of shuffling code about

* Types that can have contracts, and an exhaustive test to make sure
  every value exported by `math/matrix' has a contract when used in
  untyped code

* Some more tests (still needs some)
 2012-12-31 14:17:17 -07:00
Neil Toronto
e06f31c94e More precise return type for `magnitude' (it always returns nonnegative) 2012-12-31 14:17:17 -07:00
Matthew Flatt
cdfc4912ad racket/base: add exn:fail:filesystem:errno and exn:fail:network:errno 
Provide raw error codes when available, which is mostly from filesystem
and networking primitives.
 2012-12-31 12:04:03 -07:00
Matthew Flatt
dc9643aef6 fix typo in error message 2012-12-31 12:04:03 -07:00
Matthew Flatt
ba973a317f add `configure' test for mmap() and mprotect() 
Use the test to enable execute permission on memory that is allocated
for code, including FFI callbacks.
 2012-12-31 12:04:03 -07:00
Robby Findler
a948f1b40d fix commit c818eb3ca3 
related to PR 13394
 2012-12-31 11:52:36 -06:00
Robby Findler
2a83c2147c add some color to the image guide's fractals 
and use local instead of internal define to
be more HtDP friendly
 2012-12-31 11:42:33 -06:00
Robby Findler
8f300b9e73 add rotary dial to the image guide 2012-12-31 10:29:28 -06:00
Sam Tobin-Hochstadt
0d01db8543 Fix type of log-message. 2012-12-30 22:14:44 -05:00
Robby Findler
9b6272674e tweak the latex rendering of ╔ and company 2012-12-30 21:11:38 -06:00
Matthew Flatt
7cb7beae27 fix non-JIT build 
Fix a reference to a function that is only available when the JIT is
enabled.
 2012-12-30 20:30:33 -06:00
Matthew Flatt
8b7379a7ad docs: clarification for `immutable?' 2012-12-30 20:30:20 -06:00
Matthias Felleisen
ede0e3c625 at JPR's request: modified memq to return boolean and added memq? to teaching languages 
the symmetry to member/member? suggested he is correct
 2012-12-30 14:38:32 -05:00
Matthew Flatt
05ce8bce80 win32: fix MinGW vs. MSVC build problem 2012-12-30 05:41:24 -07:00