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  2. Marching squares - Wikipedia

    en.wikipedia.org/wiki/Marching_squares

    1 where the data value is above the isovalue; 0 where the data value is below the isovalue; Note: Data equal to the isovalue has to be treated as above or below in a consistent way. Every 2x2 block of pixels in the binary image forms a contouring cell, so the whole image is represented by a grid of such cells (shown in green in the picture below).

  3. Static single-assignment form - Wikipedia

    en.wikipedia.org/wiki/Static_single-assignment_form

    Open64 uses extensions to SSA form to represent memory in SSA form as well as scalar values. In 2002, researchers modified IBM's JikesRVM (named Jalapeño at the time) to run both standard Java bytecode and a typesafe SSA ( SafeTSA ) bytecode class files, and demonstrated significant performance benefits to using the SSA bytecode.

  4. Common Lisp - Wikipedia

    en.wikipedia.org/wiki/Common_Lisp

    A symbol is a unique, named data object with several parts: name, value, function, property list, and package. Of these, value cell and function cell are the most important. Symbols in Lisp are often used similarly to identifiers in other languages: to hold the value of a variable; however there are many other uses.

  5. Array programming - Wikipedia

    en.wikipedia.org/wiki/Array_programming

    The fundamental idea behind array programming is that operations apply at once to an entire set of values. This makes it a high-level programming model as it allows the programmer to think and operate on whole aggregates of data, without having to resort to explicit loops of individual scalar operations.

  6. final (Java) - Wikipedia

    en.wikipedia.org/wiki/Final_(Java)

    For scalar values, once it has been assigned, the value of the final variable cannot change. For object values, the reference cannot change. For object values, the reference cannot change. This allows the Java compiler to "capture" the value of the variable at run-time and store a copy as a field in the inner class.

  7. Scalar (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Scalar_(mathematics)

    A scalar is an element of a field which is used to define a vector space.In linear algebra, real numbers or generally elements of a field are called scalars and relate to vectors in an associated vector space through the operation of scalar multiplication (defined in the vector space), in which a vector can be multiplied by a scalar in the defined way to produce another vector.

  8. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    A snippet of Java code with keywords highlighted in bold blue font. The syntax of Java is the set of rules defining how a Java program is written and interpreted.. The syntax is mostly derived from C and C++.

  9. Primitive data type - Wikipedia

    en.wikipedia.org/wiki/Primitive_data_type

    Instead, numeric values of zero are interpreted as false, and any other value is interpreted as true. [9] The newer C99 added a distinct Boolean type _Bool (the more intuitive name bool as well as the macros true and false can be included with stdbool.h ), [ 10 ] and C++ supports bool as a built-in type and true and false as reserved words.