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author | Steve Langasek <vorlon@debian.org> | 2005-01-10 08:53:33 +0000 |
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committer | Bryan Newbold <bnewbold@robocracy.org> | 2017-02-20 00:05:30 -0800 |
commit | e33f9eb9cf5cc29c36ce2aa7e10cd0f37ae0cc8e (patch) | |
tree | abbf06041619e445f9d0b772b0d58132009d8234 /phil-spc.txi | |
parent | f559c149c83da84d0b1c285f0298c84aec564af9 (diff) | |
parent | 8466d8cfa486fb30d1755c4261b781135083787b (diff) | |
download | slib-e33f9eb9cf5cc29c36ce2aa7e10cd0f37ae0cc8e.tar.gz slib-e33f9eb9cf5cc29c36ce2aa7e10cd0f37ae0cc8e.zip |
Import Debian changes 3a1-4.2debian/3a1-4.2
slib (3a1-4.2) unstable; urgency=low
* Non-maintainer upload.
* Add guile.init.local for use within the build dir, since otherwise we
have an (earlier unnoticed) circular build-dep due to a difference
between scm and guile.
slib (3a1-4.1) unstable; urgency=low
* Non-maintainer upload.
* Build-depend on guile-1.6 instead of scm, since the new version of
scm is wedged in unstable (closes: #281809).
slib (3a1-4) unstable; urgency=low
* Also check for expected creation on slibcat. (Closes: #240096)
slib (3a1-3) unstable; urgency=low
* Also check for /usr/share/guile/1.6/slib before installing for guile
1.6. (Closes: #239267)
slib (3a1-2) unstable; urgency=low
* Add format.scm back into slib until gnucash stops using it.
* Call guile-1.6 new-catalog (Closes: #238231)
slib (3a1-1) unstable; urgency=low
* New upstream release
* Remove Info section from doc-base file (Closes: #186950)
* Remove period from end of description (linda, lintian)
* html gen fixed upstream (Closes: #111778)
slib (2d4-2) unstable; urgency=low
* Fix url for upstream source (Closes: #144981)
* Fix typo in slib.texi (enquque->enqueue) (Closes: #147475)
* Add build depends.
slib (2d4-1) unstable; urgency=low
* New upstream.
slib (2d3-1) unstable; urgency=low
* New upstream.
* Remove texi2html call in debian/rules. Now done upstream. Add make
html instead.
* Changes to rules and doc-base to conform to upstream html gen
* Clean up upstream makefile to make sure it cleans up after itself.
Diffstat (limited to 'phil-spc.txi')
-rw-r--r-- | phil-spc.txi | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/phil-spc.txi b/phil-spc.txi new file mode 100644 index 0000000..1193c6c --- /dev/null +++ b/phil-spc.txi @@ -0,0 +1,38 @@ +@code{(require 'hilbert-fill)} +@ftindex hilbert-fill + +@noindent +@cindex Peano +@cindex Hilbert +@cindex Space-Filling +The @dfn{Peano-Hilbert Space-Filling Curve} is a one-to-one mapping +@cindex Peano-Hilbert Space-Filling Curve +between a unit line segment and an @var{n}-dimensional unit cube. + +@noindent +The integer procedures map the non-negative integers to an +arbitrarily large @var{n}-dimensional cube with its corner at the +origin and all coordinates are non-negative. + +@noindent +For any exact nonnegative integers @var{scalar} and @var{rank}, + +@example +(= @var{scalar} (hilbert-coordinates->integer + (integer->hilbert-coordinates @var{scalar} @var{rank}))) + @result{} #t +@end example + + +@defun integer->hilbert-coordinates scalar rank + +Returns a list of @var{rank} integer coordinates corresponding to exact +non-negative integer @var{scalar}. The lists returned by @code{integer->hilbert-coordinates} for @var{scalar} arguments +0 and 1 will differ in the first element. +@end defun + +@defun hilbert-coordinates->integer coords + +Returns an exact non-negative integer corresponding to @var{coords}, a list +of non-negative integer coordinates. +@end defun |