Tutorial by Topics: es

One of the strengths of Haskell is the ability to leverage the type system to model parts of your problem domain in the type system. In doing so, one often encounters very complex types. When writing programs with these types (i.e. with values having these types) it occasionally becomes nearly unm...

Design patterns are general solutions to problems that frequently occur in software development. The following are templates of standardized best practices in structuring and designing code, as well as examples of common contexts in which these design patterns would be appropriate. Creational desig...

The stack of computers is like a stack of books. PUSH adds one to the top and POP takes the uppermost away. Like in real life the stack cannot be endless, so it has maximum size. The stack can be used for sorting algorithms, to handle a bigger amount of data or to safe values of registers while do...

Why are tuples limited to length 23? Tuples are rewritten as objects by the compiler. The compiler has access to Tuple1 through Tuple22. This arbitrary limit was decided by language designers. Why do tuple lengths count from 0? A Tuple0 is equivalent to a Unit.

FontAwesome is a set of 600+ vector icons. It is freely available under OFL/MIT-License and may be used in open-source or commercial-projects..

A join combines two tables containing related columns. The term covers a wide range of operations, essentially everything except appending the two tables. "Merge" is a synonym. Type ?`[.data.table` for the official docs. x[i, on, j] # join: data.table x & data.table or list i x[!i...

The key and indices of a data.table allow certain computations to run faster, mostly related to joins and subsetting. The key describes the table's current sort order; while each index stores information about the order of the table with respect a sequence of columns. See the "Remarks&quo...

Tensorflow distinguishes between saving/restoring the current values of all the variables in a graph and saving/restoring the actual graph structure. To restore the graph, you are free to use either Tensorflow's functions or just call your piece of code again, that built the graph in the first place...