Search results
Results From The WOW.Com Content Network
Before transmitting its first byte, it needs to know the position of the first zero byte (if any) in the following 254 bytes. A 1999 Internet Draft proposed to standardize COBS as an alternative for HDLC framing in PPP , due to the aforementioned poor worst-case overhead of HDLC framing.
An array data structure can be mathematically modeled as an abstract data structure (an abstract array) with two operations . get(A, I): the data stored in the element of the array A whose indices are the integer tuple I.
Thus, if the array is seen as a function on a set of possible index combinations, it is the dimension of the space of which its domain is a discrete subset. Thus a one-dimensional array is a list of data, a two-dimensional array is a rectangle of data, [12] a three-dimensional array a block of data, etc.
Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})
Introduction of index notation to denote tensor contractions and tensor symmetrizations (new class TensorWithIndices); see these links: 1, 2. The argument of methods symmetrize() and antisymmetrize() in tensor classes is now directly a sequence of index positions (and no longer a single list/tuple encapsulating such a sequence).
At the conclusion of its eighth and final rate-setting policy meeting of the year on December 18, 2024, the Federal Reserve announced it was lowering the federal funds target interest rate by 25 ...
Folds can be regarded as consistently replacing the structural components of a data structure with functions and values. Lists, for example, are built up in many functional languages from two primitives: any list is either an empty list, commonly called nil ([]), or is constructed by prefixing an element in front of another list, creating what is called a cons node ( Cons(X1,Cons(X2,Cons ...
This is a list of well-known data structures. For a wider list of terms, see list of terms relating to algorithms and data structures. For a comparison of running times for a subset of this list see comparison of data structures.