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Unit function
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/M%C3%B6bius_inversion_formula/xDnSrPp6">Möbius inversion formula</a></li> <li><a href="/facts/Heaviside_step_function/bgsUtxgP">Heaviside step function</a></li> <li><a href="/facts/Kronecker_delta/gcGAy0bm">Kronecker delta</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Estrada, Ricardo (1995), "Dirichlet convolution inverses and solution of integral equations", Journal of Integral Equations and Applications, 7 (2): 159–166, doi:10.1216/jiea/1181075867, MR 1355233. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>