Editing Functional programming (section)

=== Spreadsheets ===
[[Spreadsheet]]s can be considered a form of pure, [[Higher-order function|zeroth-order]], strict-evaluation functional programming system.<ref name="Wakeling2007">{{cite journal|last1=Wakeling|first1=David|title=Spreadsheet functional programming|journal=Journal of Functional Programming|volume=17|issue=1|year=2007|pages=131–143|issn=0956-7968|doi=10.1017/S0956796806006186|s2cid=29429059|url=http://www.activemode.org/webroot/Workers/ActiveTraining/Programming/Pro_SpreadsheetFunctionalProgramming.pdf}}</ref> However, spreadsheets generally lack higher-order functions as well as code reuse, and in some implementations, also lack recursion. Several extensions have been developed for spreadsheet programs to enable higher-order and reusable functions, but so far remain primarily academic in nature.<ref name="excel">{{cite web |title=Improving the world's most popular functional language: user-defined functions in Excel |first1=Simon |last1=Peyton Jones |author-link1=Simon Peyton Jones |first2=Margaret |last2=Burnett|author2-link=Margaret Burnett |first3=Alan |last3=Blackwell |author-link3=Alan Blackwell |url=http://research.microsoft.com/~simonpj/Papers/excel/index.htm |date=March 2003 |archive-url=https://web.archive.org/web/20051016011341/http://research.microsoft.com/~simonpj/Papers/excel/index.htm |archive-date=2005-10-16}}</ref>