cartesian-product

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Scala method to combine each element of an iterable with each element of another?

If I have this: val a = Array(\"a \",\"b \",\"c \") val b = Array(\"x\",\"y\") I 开发者_运维知识库would like to know if such a method exists which would let me traverse the first collection, and fo[详细]

2023-03-04 18:51 分类：问答
SQLite accepts non-existing join types in SQL syntax

I found this unexpected behavior with SQLite. It appears that SQLite accepts arbitrary keywords in SQL join syntax. If I accidentally type nautral join instead of natural join a cartesian product is p[详细]

2023-02-25 17:19 分类：问答
Conversion of a delta pair to degree's [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-02-19 19:43 分类：问答
Why does application of `sequence` on List of Lists lead to computation of its Cartesian Product?

My question is about the sequence function in Prelude, the signature of which is as follows: sequence :: Monad m => [m a] -> m [a][详细]

2023-02-16 21:31 分类：问答
Fighting cartesian product (x-join) when using NHibernate 3.0.0

I\'m bad at math but I kind get idea what cartesian product is. Here is my situation (simplified): public class Project{[详细]

2023-02-16 06:44 分类：问答
O/R mapping: Single complex query vs. multiple simple queries

I\'m qurious on how the result set of an SQL query is transported from the server to the client. Most O/R mappers support both eager and lazy load, both have their pros and cons.[详细]

2023-02-11 16:10 分类：问答
How can I simplify "for x in a for y in b for z in c ..." with the unordered?

#!/usr/bin/python # # Description: I try to simplify the implementation of the thing below. # Sets, such as (a,b,c), with irrelavant order are given. The goal is to[详细]

2023-02-03 07:25 分类：问答
Cartesian Product and Map Combined in Scala

This is a followup to: Expand a Set of Sets of Strings into Cartesian Product in Scala 开发者_如何学GoThe idea is you want to take:[详细]

2023-02-01 01:41 分类：问答
Why does Math::Cartesian::Product return blessed objects?

I noticed Math::Cartesian::Product returns an array of blessed objects instead of a simple array of arrays.I couldn\'t figure out why. I actually need to do some extra work (u开发者_如何学Gonbless) to[详细]

2023-01-30 20:36 分类：问答
Cartesian Product + N x M Dynamic Array

I have looked hours for a solution without any success. Hopefully someone can help me out. I have a dynamic array of N items on M origin zip codes.[详细]

2023-01-30 00:06 分类：问答