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  2. Register allocation - Wikipedia

    en.wikipedia.org/wiki/Register_allocation

    Coalesce: merge the live ranges of non-interfering variables related by copy instructions. Spill cost : compute the spill cost of each variable. This assesses the impact of mapping a variable to memory on the speed of the final program.

  3. Null coalescing operator - Wikipedia

    en.wikipedia.org/wiki/Null_coalescing_operator

    The null coalescing operator is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, such as (in alphabetical order): C# [1] since version 2.0, [2] Dart [3] since version 1.12.0, [4] PHP since version 7.0.0, [5] Perl since version 5.10 as logical defined-or, [6] PowerShell since 7.0.0, [7] and Swift [8] as nil-coalescing operator.

  4. APL syntax and symbols - Wikipedia

    en.wikipedia.org/wiki/APL_syntax_and_symbols

    The above dyadic functions examples [left and right examples] (using the same / symbol, right example) demonstrate how Boolean values (0s and 1s) can be used as left arguments for the \ expand and / replicate functions to produce exactly opposite results.

  5. Map (higher-order function) - Wikipedia

    en.wikipedia.org/wiki/Map_(higher-order_function)

    In languages which support first-class functions and currying, map may be partially applied to lift a function that works on only one value to an element-wise equivalent that works on an entire container; for example, map square is a Haskell function which squares each element of a list.

  6. Apache Spark - Wikipedia

    en.wikipedia.org/wiki/Apache_Spark

    Spark Core is the foundation of the overall project. It provides distributed task dispatching, scheduling, and basic I/O functionalities, exposed through an application programming interface (for Java, Python, Scala, .NET [16] and R) centered on the RDD abstraction (the Java API is available for other JVM languages, but is also usable for some other non-JVM languages that can connect to the ...

  7. Coalescing (computer science) - Wikipedia

    en.wikipedia.org/wiki/Coalescing_(computer_science)

    In computer science, coalescing is a part of memory management in which two adjacent free blocks of computer memory are merged.. When a program no longer requires certain blocks of memory, these blocks of memory can be freed.

  8. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    A snippet of Python code with keywords highlighted in bold yellow font. The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). The Python language has many similarities to Perl, C, and Java. However, there are some ...

  9. Coalesced hashing - Wikipedia

    en.wikipedia.org/wiki/Coalesced_hashing

    Coalesced Hashing example. For purposes of this example, collision buckets are allocated in increasing order, starting with bucket 0. Coalesced hashing , also called coalesced chaining , is a strategy of collision resolution in a hash table that forms a hybrid of separate chaining and open addressing .