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0x90 [2] 0x90 is the one-byte encoding for XCHG AX,AX in 16-bit code and XCHG EAX,EAX in 32-bit code. In long mode, XCHG RAX,RAX requires two bytes, as it would begin with an REX.W prefix, making the encoding 0x48 0x90. However, 0x90 is interpreted as a NOP in long mode regardless of whether it is preceded by 0x48. [2] multi-byte NOP
This is the original definition for maplist, mapping a function over successive rest lists: maplist[x;f] = [null[x] -> NIL;T -> cons[f[x];maplist[cdr[x];f]]] The function maplist is still available in newer Lisps like Common Lisp, [5] though functions like mapcar or the more generic map would be preferred.
R indicates that the position will contain 0–9 if positive and {–R if negative. For example PICTURE 'Z99R' describes a four-character numeric field. The first position may be blank or will contain a digit 0–9. The next two positions will contain digits, and the fourth position will contain 0–9 for a positive number and {–R for ...
Lodash is a JavaScript library that helps programmers write more concise and maintainable JavaScript. It can be broken down into several main areas: Utilities: for simplifying common programming tasks such as determining type as well as simplifying math operations.
The converse, though, does not necessarily hold: for example, taking f as =, where V is a Vitali set, it is clear that f is not measurable, but its absolute value is, being a constant function. The positive part and negative part of a function are used to define the Lebesgue integral for a real-valued function.
What follows are two results which will imply that an extended signed measure is the difference of two non-negative measures, and a finite signed measure is the difference of two finite non-negative measures. The Hahn decomposition theorem states that given a signed measure μ, there exist two measurable sets P and N such that: P∪N = X and P ...
Then the map : defined by () = (‖ ‖) is a smooth function that is positive on and vanishes off of . [1] For every , let = {| | : , …, =}, where this supremum is not equal to + (so is a non-negative real number) because () ¯ =, the partial derivatives all vanish (equal ) at any outside of , while on the compact set ¯, the values of each ...
The distinction between the two is subtle: "higher-order" describes a mathematical concept of functions that operate on other functions, while "first-class" is a computer science term for programming language entities that have no restriction on their use (thus first-class functions can appear anywhere in the program that other first-class ...