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  2. Droste effect - Wikipedia

    en.wikipedia.org/wiki/Droste_effect

    The Droste effect (Dutch pronunciation: [ˈdrɔstə]), known in art as an example of mise en abyme, is the effect of a picture recursively appearing within itself, in a place where a similar picture would realistically be expected to appear. This produces a loop which in theory could go on forever, but in practice only continues as far as the ...

  3. Infinity mirror - Wikipedia

    en.wikipedia.org/wiki/Infinity_mirror

    The infinity mirror (also sometimes called an infinite mirror) is a configuration of two or more parallel or angled mirrors, which are arranged to create a series of smaller and smaller reflections that appear to recede to infinity. [1][2] Often the front mirror of an infinity mirror is half-silvered (a so-called one way mirror), but this is ...

  4. Möbius strip - Wikipedia

    en.wikipedia.org/wiki/Möbius_strip

    In mathematics, a Möbius strip, Möbius band, or Möbius loop [a] is a surface that can be formed by attaching the ends of a strip of paper together with a half-twist. As a mathematical object, it was discovered by Johann Benedict Listing and August Ferdinand Möbius in 1858, but it had already appeared in Roman mosaics from the third century CE .

  5. Recursion - Wikipedia

    en.wikipedia.org/wiki/Recursion

    Recursion is the process a procedure goes through when one of the steps of the procedure involves invoking the procedure itself. A procedure that goes through recursion is said to be 'recursive'. [ 3 ] To understand recursion, one must recognize the distinction between a procedure and the running of a procedure.

  6. Klein bottle - Wikipedia

    en.wikipedia.org/wiki/Klein_bottle

    A two-dimensional representation of the Klein bottle immersed in three-dimensional space. In mathematics, the Klein bottle (/ ˈ k l aɪ n /) is an example of a non-orientable surface; that is, informally, a one-sided surface which, if traveled upon, could be followed back to the point of origin while flipping the traveler upside down.

  7. Infinite loop - Wikipedia

    en.wikipedia.org/wiki/Infinite_loop

    Infinite loop. Control flow. v. t. e. In computer programming, an infinite loop (or endless loop) [1][2] is a sequence of instructions that, as written, will continue endlessly, unless an external intervention occurs, such as turning off power via a switch or pulling a plug. It may be intentional.

  8. Penrose triangle - Wikipedia

    en.wikipedia.org/wiki/Penrose_triangle

    Penrose triangle. The Penrose triangle, also known as the Penrose tribar, the impossible tribar, [ 1 ] or the impossible triangle, [ 2 ] is a triangular impossible object, an optical illusion consisting of an object which can be depicted in a perspective drawing. It cannot exist as a solid object in ordinary three-dimensional Euclidean space ...

  9. Mandelbrot set - Wikipedia

    en.wikipedia.org/wiki/Mandelbrot_set

    Images of the Mandelbrot set exhibit an infinitely complicated boundary that reveals progressively ever-finer recursive detail at increasing magnifications; mathematically, the boundary of the Mandelbrot set is a fractal curve. The "style" of this recursive detail depends on the region of the set boundary being examined.