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  2. Function generator - Wikipedia

    en.wikipedia.org/wiki/Function_generator

    Sine, square, triangle, and sawtooth waveforms. In electrical engineering, a function generator is usually a piece of electronic test equipment or software used to generate different types of electrical waveforms over a wide range of frequencies. Some of the most common waveforms produced by the function generator are the sine wave, square wave ...

  3. PHP syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/PHP_syntax_and_semantics

    PHP generally follows C syntax, with exceptions and enhancements for its main use in web development, which makes heavy use of string manipulation. PHP variables must be prefixed by " $ ". This allows PHP to perform string interpolation in double quoted strings, where backslash is supported as an escape character.

  4. Comparison of documentation generators - Wikipedia

    en.wikipedia.org/wiki/Comparison_of...

    cross reference to generated documentation, and to php.net function reference Yes pydoc: RDoc: ROBODoc: Sphinx: 10 themes; Jinja2 templating; Python plugins several in sphinx-contrib, e.g. using aafigure, actdiag, Google Chart, or gnuplot Table of Contents, Index; cross referencing; syntax highlighting with Pygments

  5. Generator (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Generator_(computer...

    Generator (computer programming) In computer science, a generator is a routine that can be used to control the iteration behaviour of a loop. All generators are also iterators. [1] A generator is very similar to a function that returns an array, in that a generator has parameters, can be called, and generates a sequence of values.

  6. phpDocumentor - Wikipedia

    en.wikipedia.org/wiki/PhpDocumentor

    MIT License. Website. phpdoc .org. phpDocumentor is an open-source documentation generator written in PHP. It automatically parses PHP source code and produces readable API and source code documentation, based on PHPDoc -formatted comments and the structure of the source code itself. It supports documentation of both object-oriented and ...

  7. Prime-counting function - Wikipedia

    en.wikipedia.org/wiki/Prime-counting_function

    All instances of log ( x) without a subscript base should be interpreted as a natural logarithm, commonly notated as ln ( x) or log e ( x ). In mathematics, the prime-counting function is the function counting the number of prime numbers less than or equal to some real number x. [1] [2] It is denoted by π(x) (unrelated to the number π ).

  8. Signal generator - Wikipedia

    en.wikipedia.org/wiki/Signal_generator

    An arbitrary waveform generator (AWG or ARB) is a sophisticated signal generator that generates arbitrary waveforms within published limits of frequency range, accuracy, and output level. Unlike a function generator that produces a small set of specific waveforms, an AWG allows the user to specify a source waveform in a variety of different ways.

  9. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    In mathematics, the logarithm is the inverse function to exponentiation. That means that the logarithm of a number x to the base b is the exponent to which b must be raised to produce x. For example, since 1000 = 103, the logarithm base of 1000 is 3, or log10 (1000) = 3.