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Author SHA1 Message Date
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
Asumu Takikawa
4041e3c841 Fix sandbox doc example 2012-12-30 01:55:44 -05:00
Robby Findler
c818eb3ca3 Fix the new lexer interaction when some of the lexer states were 
finished, but not all. Don't re-do them the next time around

closes PR 13394
 2012-12-29 23:56:38 -06:00
Robby Findler
022e252f45 add support for ╔ ═ ╗ ║ ╚ and ╝ to the latex renderer 
Also, Rackety
 2012-12-29 11:31:17 -06:00
Mike Sperber
99301c15ff Synch German string constants with latest. 2012-12-29 15:16:30 +01:00
Matthew Flatt
93affa4d5d fix a build dependency in --enable-shared mode 
Closes PR 13392
 2012-12-28 12:22:32 -07:00
Matthew Flatt
0a708b040a setup/link: fix collection-root results for version regexps 2012-12-28 11:57:34 -07:00
Matthew Flatt
480ae5e262 doc repair 2012-12-28 12:53:48 -06:00
Matthew Flatt
03259ef539 MinGW-w64 support 
For now, SGC must be used, but `configure' does not select it
automatically.

Also, support Cygwin (in addition to MSYS) as a build environment
when using MinGW compilers. Since I build in a Cygwin environment
(which seemed to be the easiest way to get MinGW-w64 gcc), I use

  ../configure --host=x86_64-w64-mingw32 --enable-sgc
 2012-12-28 11:06:46 -06:00
Robby Findler
7b9879c0e6 some edits to nitty-gritty section and fix up the koch curve names 
(and actually draw the snowflake)
 2012-12-28 10:53:10 -06:00
Matthias Felleisen
e212c1c279 a few more definitions to avoid re-typing for BSLers 2012-12-28 10:47:36 -05:00
Matthias Felleisen
dc7df5b9f1 choose decent variable names, until Robby says 'use new evaluator' 2012-12-28 10:40:35 -05:00
Matthias Felleisen
c2c2a1b485 make first interaction more BSL-ish, take 2 2012-12-28 10:01:23 -05:00
Matthias Felleisen
7a6054e2ba make first interaction more BSL-ish 2012-12-28 10:00:21 -05:00
Robby Findler
6ff9910874 add a little bit to the image guide 2012-12-28 08:54:35 -06:00
Robby Findler
5f838f8ff5 add more agressive notes with pointers to the nitty gritty section 2012-12-28 08:54:35 -06:00
Eli Barzilay
b9a7f0ef62 New Racket version 5.3.1.11. 2012-12-28 03:35:13 -05:00
Neil Toronto
7ac8e1bbce Slightly more `math/matrix' 
* Moved to-do list in "matrix-operations.rkt" to the wiki

* Added more mutating vector ops

* Added "matrix-basis.rkt" (unfinished)
 2012-12-27 17:30:04 -07:00
Neil Toronto
e55a31480e Precise flonum tests (error usually must be <= 0.5 ulp), and prerequisite 
additions/changes

* More accurate `flulp-error'

* Added `flonum->fields', `fields->flonum', `flonum->sig+exp',
  `sig+exp->flonum' (currently undocumented)

* Correctly rounded, robust `bigfloat->fl2' and `fl2'

* Correctly rounded, robust `fl+/error', `fl-/error', `fl*/error',
  `flsqr/error', `fl//error'

* Much faster but slightly less accurate fl2 ops (shamelessly stolen from
  crlibm, which is LGPL)

* Added `fl2ulp', `fl2ulp-error', `fl2?' (which detects overlap),
  `+max-fl2-subnormal.0' (which was tricky), `fl2abs'

* Added deterministic and randomized flonum op tests (against MPFR)

* Added deterministic and randomized flonum/error op tests (against MPFR)

* Added deterministic and randomized fl2 op tests (against MPFR)

* Exposed FPU tests in `math/utils' (currently undocumented)
 2012-12-27 17:30:04 -07:00
Neil Toronto
fc02d40a66 Faster LU decomposition 2012-12-27 17:30:03 -07:00
Matthias Felleisen
01bb5c400a added a potentially useful macro 2012-12-27 19:01:34 -05:00
Matthias Felleisen
6243a928fb space management for figures 2012-12-27 19:01:34 -05:00