\u0391\u03bd \u03b4\u03b5\u03bd \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03b5\u03c4\u03b5 \u03c4\u03af \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b8\u03b1\u03c5\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c9\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03b2\u03bf\u03bb\u03bf \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc, \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03b3\u03bf\u03bd\u03c4\u03b9\u03ba\u03cc.<\/p>\n
<img class="aligncenter" src="http:\/\/xwhy.comicgenesis recommended you read<\/a>.com\/comics\/20080213.png” alt=”0! = 1″ width=”415″ height=”360″ \/><\/p>\n \u03a4\u03bf \u03c3\u03cd\u03bc\u03b2\u03bf\u03bb\u03bf \u03b1\u03c5\u03c4\u03cc \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b2\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c4\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03b1\u03c5\u03c4\u03cc \u03bc\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03ad\u03bd\u03b1\u03bd \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03cc \u03c4\u03bf\u03c5 (\u03b1\u03ba\u03ad\u03c1\u03b1\u03b9\u03bf \u03c0\u03ac\u03bd\u03c4\u03b1), \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03bf\u03bd 1 (\u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03bf\u03bd 2).<\/p>\n \u0388\u03bd\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1: \u03a9\u03c1\u03b1\u03af\u03b1 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03b5\u03b4\u03ce.<\/p>\n \u03a3\u03c5\u03bd\u03b5\u03c7\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c2 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03c4\u03af \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03b4\u03af\u03bd\u03bf\u03c5\u03bd \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf\u03b9 \u03b1\u03ba\u03ad\u03c1\u03b1\u03b9\u03bf\u03b9:<\/p>\n 4! = 4 * 3 * 2 * 1 = 24 \u039b\u03bf\u03b3\u03b9\u03ba\u03ac \u03c4\u03bf 0 \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03b1\u03ba\u03ad\u03c1\u03b1\u03b9\u03bf\u03c5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03bf \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b1\u03bb\u03bb\u03ac \u03ac\u03c3\u03c7\u03b5\u03c4\u03b1 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc \u03ba\u03ac\u03b8\u03b5 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03bc\u03b5 \u03c4\u03bf 0 \u03b8\u03b1 \u03ad\u03b4\u03b9\u03bd\u03b5 0. \u039f\u03c0\u03cc\u03c4\u03b5 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ac \u03b8\u03b1 \u03ad\u03c0\u03c1\u03b5\u03c0\u03b5 0! = 0<\/p>\n \u0391\u03bb\u03bb\u03ac \u03b1\u03c2 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03ba\u03ac\u03c4\u03b9 \u03ac\u03bb\u03bb\u03bf.<\/p>\n \u0391\u03c0\u03cc \u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c4\u03c5\u03c0\u03ce\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b5\u03be\u03ae\u03c2 \u03c3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1:<\/p>\n \u03a4\u03bf 4! = 5! \/ 5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(5 * 4 * 3 * 2) \/ 5 = (4 * 3 * 2) = 4!<\/p>\n \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2:<\/p>\n \u03c4\u03bf 3! = 4! \/ 4 😯 \u03a0\u03b5\u03b9\u03c3\u03c4\u03ae\u03ba\u03b1\u03c4\u03b5; \u039f\u03cd\u03c4\u03b5 \u03ba\u03b9 \u03b5\u03b3\u03ce!<\/p>\n \u039f\u03b9 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03bb\u03ad\u03bd\u03b5 \u03cc\u03c4\u03b9 0! = 1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b4\u03b9\u03ba\u03b1\u03b9\u03bf\u03bb\u03bf\u03b3\u03bf\u03cd\u03bd \u03bc\u03b5 \u03c4\u03b7\u03bd \u03ac\u03c0\u03bf\u03c8\u03b7 \u00ab\u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03c9\u03b8\u03b5\u03af \u03c4\u03bf \u03bc\u03bf\u03c4\u03af\u03b2\u03bf\u00bb.<\/p>\n \u039f\u039a \u03bb\u03bf\u03b9\u03c0\u03cc\u03bd, \u03af\u03c3\u03c9\u03c2 \u03b4\u03b5\u03bd \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03c0\u03b5\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc. \u03a5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03ba\u03b9 \u03ac\u03bb\u03bb\u03b7 \u03b5\u03be\u03ae\u03b3\u03b7\u03c3\u03b7…<\/p>\n 1! = 1 * 1 = 1 n! = n * (n-1)! <\/p>\n \u0393\u03b9\u03b1 n=1, n! = n * (n-1)! <\/p>\n 1! = 1 * (1-1)! 1 = 0!<\/strong> <\/span><\/p>\n \u039a\u03b1\u03b9 \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae\u03c2..<\/strong><\/span><\/p>\n \u0394\u03b5\u03af\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03b2\u03af\u03bd\u03c4\u03b5\u03bf:<\/p>\n<\/p>\n Spiros<\/span><\/p>\n","protected":false},"excerpt":{"rendered":" \u0391\u03bd \u03b4\u03b5\u03bd \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03b5\u03c4\u03b5 \u03c4\u03af \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b8\u03b1\u03c5\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c9\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03b2\u03bf\u03bb\u03bf \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc, \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03b3\u03bf\u03bd\u03c4\u03b9\u03ba\u03cc. <img class="aligncenter" src="http:\/\/xwhy.comicgenesis recommended you read.com\/comics\/20080213.png” alt=”0! = […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":916,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-9"],"_links":{"self":[{"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/posts\/872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/comments?post=872"}],"version-history":[{"count":38,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/posts\/872\/revisions"}],"predecessor-version":[{"id":950,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/posts\/872\/revisions\/950"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/media\/916"}],"wp:attachment":[{"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/media?parent=872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/categories?post=872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.metaforum.gr\/mag\/wp-json\/wp\/v2\/tags?post=872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
5! = 5 * 4 * 3 * 2 * 1 = 120 \u03ae
5! = 5 * 4 * 3 * 2 (\u03c4\u03bf 1 \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03bd\u03cc\u03b7\u03bc\u03b1)<\/p>\n
3! = 3 * 2 * 1 = 6
2! = 2 * 1 = 2
1! = 1
0! = ?<\/p>\n
\u03c4\u03bf 2! = 3! \/ 3
\u03c4\u03bf 1! = 2! \/ 2
\u0386\u03c1\u03b1 \u03c4\u03bf 0! = 1! \/ 1 = 1<\/strong><\/span><\/p>\n
2! = 1 * 2 = 2
3! = 1 * 2 * 3 = 6
4! = 1 * 2 * 3 * 4 = 24
…
n! = 1 * 2 * 3 * … * (n-2) * (n-1) * n <\/p>\n
1! = 1 * 0!
1! = 0!<\/p>\n