Mastering Algorithms with Perl phần 4 ppt

Mastering Algorithms with Perl phần 4 ppt

Mastering Algorithms with Perl phần 4 ppt

... are demonstrated here. $bullseye = zeroes (41 2, 351) creates a piddle with 41 2 columns and 351 rows, where every element is 0. (ones() creates a piddle with every element 1.) $bullseye is thus ... $hb{12 34} ' # Increment if true (never). use PDL::IO::FastRaw; $brain = readfraw("brain", {Dims => [351 ,41 2], ReadOnly => 1,}); $supplement = sec($brain, 85, 376, 40...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 217
  • 0
Mastering Algorithms with Perl phần 9 pptx

Mastering Algorithms with Perl phần 9 pptx

... Figure 15-3, we get 54. 9952963760691 + 2.017011 642 1 245 4x. That is, our best estimate of the relation between sales and hits is that sales = 2.017011 642 1 245 4 × the number of hits + 54. 9952963760691. The ... $gabriel_volume, but area is $gabriel_area.\n"; The result is: Volume is 3.209995072002 84, but area is 43 .44 448 340 63 54. Figure 16-1. Three sample points If you have...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 282
  • 0
Mastering Algorithms with Perl phần 1 pps

Mastering Algorithms with Perl phần 1 pps

... and Intersection 43 5 Inclusion 44 3 Boundaries 44 9 Closest Pair of Points 45 7 Geometric Algorithms Summary 46 4 CPAN Graphics Modules 46 4 11. Number Systems 46 9 Integers and Reals 46 9 Strange Systems 48 0 Trigonometry 49 1 Significant ... Strings 353 Perl Builtins 3 54 String-Matching Algorithms 357 Phonetic Algorithms 388 Stemming and Inflection 389 Parsing 3 94 Com...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 134
  • 0
Mastering Algorithms with Perl phần 2 doc

Mastering Algorithms with Perl phần 2 doc

... sorting is, how to do it efficiently using Perl& apos;s own sort function, what comparing actually means, and how you can code your own sort algorithms with Perl. An Introduction to Sorting Sorting ... 103 Consider three records from a telephone book: Munro, Alice 15 Brigham Road 623— 244 8 Munro, Alice 48 Hammersley Place 48 9—1073 Munro, Alicia 62 Evergreen Terrace 623—6099 The las...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 139
  • 0
Mastering Algorithms with Perl phần 3 pdf

Mastering Algorithms with Perl phần 3 pdf

... follows:break @scores = qw (40 53 77 49 78 20 89 35 68 55 52 71); print percentile(\@scores, 90), "\n"; Page 145 This will be: 77 Beating O (N log N) All the sort algorithms so far have ... browse pp_ctl.c in the Perl source code.continue * The better qsort() implementations actually are also hybrids, often quicksort combined with insertion sort. Page 156 Table 4- 1 summar...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 198
  • 0
Mastering Algorithms with Perl phần 5 doc

Mastering Algorithms with Perl phần 5 doc

... 8 -47 ): use Graph::Directed; my $g = Graph::Directed->new(); $g->add_weighted_path(qw(a 1 b 4 c 1 d)); $g->add_weighted_path(qw(a 3 f 1 e 2 d)); $g->add_weighted_edges(qw(a 2 c a 4 ... the first time my $M = $V * ($V 1); $M = $M / 2 if $G->undirected; return ($M /4, 3*$M /4, $M); } Page 297 With this helper function. we can define methods like the following: # density...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 171
  • 0
Mastering Algorithms with Perl phần 6 ppsx

Mastering Algorithms with Perl phần 6 ppsx

... 147 , 48 3, 647 . The reason for using 2, 147 , 48 3, 647 , 2 31 - 1, instead of 4, 2 94, 967,295, 2 32 - 1, will be explained shortly. The prime ... guaranteed never to surpass 2, 147 ,48 3, 647 . Let's try this, taking the modulo whenever the number is about to "escape." "ABCDE" == 65 * (256* *4 % 8355967) + 66 * (256**3 ... ceil( log ( k+1 ) ) + 1 bits wide...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 232
  • 0
Mastering Algorithms with Perl phần 7 ppsx

Mastering Algorithms with Perl phần 7 ppsx

... 12 34. 5678. We'll start off with %d: printf "%d", 12 34. 5678; # prints "12 34& quot; printf "%2d", 12 34. 5678; # prints "12 34& quot; printf "%6d", 12 34. 5678; ... "%.2f", 12 34. 5678; # prints "12 34. 57" printf "%.3f", 12 34. 5678; # prints "12 34. 568" printf "%.4f", 12 34. 5678; # prints &...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 290
  • 0
Mastering Algorithms with Perl phần 8 pot

Mastering Algorithms with Perl phần 8 pot

... different k.break ** 1 2 3 4 5 0 0 0 0 0 0 1 1 1 1 1 1 2 2 4 3 1 2 3 3 4 2 1 3 4 4 1 4 1 4 ** 1 2 3 4 5 6 0 0 0 0 0 0 0 1 1 1 1 1 1 1 2 2 4 2 4 2 4 3 3 3 3 3 3 3 4 4 4 4 4 4 4 5 5 1 5 1 5 1 Page 520 When ... into code # for Perl to execute. use Filter::decrypt; ( . . . the rest of the file is encrypted unreadable values . . . ) * In Perl 3 and Perl 4, yo...
Ngày tải lên : 12/08/2014, 21:20
  • 74
  • 192
  • 0
Mastering Algorithms with Perl phần 10 pot

Mastering Algorithms with Perl phần 10 pot

... 44 6 points closest pair of, 45 7 -46 4 directives at, computing, 628-629 fitting polynomials to, 643 inclusion, 44 3 -44 9 intersections, 43 5 -44 3 line intersection, 43 5 -44 3 Manhattan intersections, 44 0 -44 3 poisson( ... 43 2 polygon_perimeter( ), 43 3 polygons area, 43 0 -43 2 determining inclusion, 44 3 -44 9 perimeter, 43 3 polynomials approximating roots, 638- 640 fit...
Ngày tải lên : 12/08/2014, 21:20
  • 73
  • 188
  • 0

Xem thêm

Từ khóa: