That's actually not permutation but Cartesian product. See Math::Cartesian::Product. #!/usr/bin/perl use strict; use warnings; ... ... <看更多>
Search
Search
That's actually not permutation but Cartesian product. See Math::Cartesian::Product. #!/usr/bin/perl use strict; use warnings; ... ... <看更多>
The Cartesian product is analogous to the integer product we are familiar with in the following way: a Cartesian product can be 'factored' into ... ... <看更多>
PHP - A simple, low-memory footprint function to generate all combinations from a multi-dimensionnal array. - GitHub - bpolaszek/cartesian-product: PHP - A ... ... <看更多>
An order pair and a function f:{1,2}→X1∪X2 are not the same thing. Depending on your definition, some people define the order pair (a,b) to be the set {a ... ... <看更多>