http://debianws.lexgopc.com/wiki143/index.php?action=history&feed=atom&title=Universal_function 2026-05-10T06:59:05Z Revision history for this page on the wiki MediaWiki 1.43.1 http://debianws.lexgopc.com/wiki143/index.php?title=Universal_function&diff=1864362&oldid=prev 2022-12-16T15:01:20Z

<p><a href="/wiki143/index.php?title=Holomorphic_function" title="Holomorphic function">holomorphic function</a></p> <p><b>New page</b></p><div>A &#039;&#039;&#039;universal function&#039;&#039;&#039; is a function that can, in some defined way, imitate all other functions. This occurs in several contexts:<br /> *In computer science, a universal function is a computable function capable of calculating any other computable function. It is shown to exist by the [[utm theorem]].<br /> *In cryptography, a [[One-way_function#Universal_one-way_function|universal one-way function]] is a function that is known to be one-way if one-way functions exist.<br /> *In mathematics, a universal function is one that contains subregions that approximate every [[holomorphic function]] to arbitrary accuracy. The Riemann zeta function (and some others) have this property, as described in [[Zeta function universality]].<br /> {{disambig}}</div>

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