{"id":3570,"date":"2026-04-20T13:44:21","date_gmt":"2026-04-20T13:44:21","guid":{"rendered":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570"},"modified":"2026-04-20T13:59:30","modified_gmt":"2026-04-20T13:59:30","slug":"%ce%b5%cf%86%ce%b1%cf%80%cf%84%ce%bf%ce%bc%ce%ad%ce%bd%ce%b7-%ce%ba%ce%b1%ce%bc%cf%80%cf%8d%ce%bb%ce%b7%cf%82-%ce%ba%ce%b1%ce%b9-%cf%83%cf%85%ce%bd%cf%84%ce%b5%ce%bb%ce%b5%cf%83%cf%84%ce%ae%cf%82","status":"publish","type":"post","link":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570","title":{"rendered":"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2"},"content":{"rendered":"\n

<\/p>\n\n\n\n

\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7<\/h3>\n\n\n\n

\u03a0\u03c9\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \"{\color[HTML]{0693E3}\<strong>varepsilon</strong>}\"<\/strong><\/strong> \u03c4\u03b7\u03c2 \"{\color[HTML]{0693E3}C_f}\" \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \"{\color[HTML]{0693E3}f}\", \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \"{\color[HTML]{0693E3}A(x_0,f(x_0))}\";
\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \"{\color[HTML]{0693E3}C_f}\" \u03c3\u03c4\u03bf \"{\color[HTML]{0693E3}A}\";<\/strong><\/h4>\n\n\n\n

(\u0397\u039c. 2000)<\/strong><\/h4>\n\n\n
<\/div><\/div><\/div>\n\n\n

\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \"(\varepsilon)\" \u03c4\u03b7\u03c2 \"C_f\" \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \"f\" \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \"A(x_0,f(x_0))\" \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03ac\u03b3\u03c9\u03b3\u03bf\u03c2 \u03c4\u03b7\u03c2 \"f\" \u03c3\u03c4\u03bf \"x_0\". \u0394\u03b7\u03bb\u03b1\u03b4\u03ae, \u03b5\u03af\u03bd\u03b1\u03b9<\/p>\n\n\n\n

  <\/span>   <\/span>\"\[\lambda=f'(x_0)=\lim\limits_{x \to x_0}\dfrac{f(x)-f(x_0)}{x-x_0}\]\"<\/p><\/p>\n\n\n\n

\u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \"(\varepsilon)\" \u03b5\u03af\u03bd\u03b1\u03b9:<\/p>\n\n\n\n

  <\/span>   <\/span>\"\[y-f(x_0)=f'(x_0)(x-x_0)\]\"<\/p><\/p>\n\n\n\n

\u03a4\u03b7\u03bd \u03ba\u03bb\u03af\u03c3\u03b7 \"f'(x_0)\" \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \"(\varepsilon)\" \u03c3\u03c4\u03bf \"A(x_0,f(x_0))\" \u03b8\u03b1 \u03c4\u03b7 \u03bb\u03ad\u03bc\u03b5 \u03ba\u03b1\u03b9 \u03ba\u03bb\u03af\u03c3\u03b7 \u03c4\u03b7\u03c2 \"C_f\" \u03c3\u03c4\u03bf \"A\" \u03ae \u03ba\u03bb\u03af\u03c3\u03b7 \u03c4\u03b7\u03c2 \"f\" \u03c3\u03c4\u03bf \"x_0\".<\/p>\n\n\n\n

\u03a0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \"{\color[HTML]{0693E3}C_f}\"<\/strong><\/p>\n\n\n\n

\u03a9\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \"\varepsilon\" \u03bf\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03c4\u03b7\u03c2 \u03b3\u03c9\u03bd\u03af\u03b1\u03c2 \"\omega ((\text{εφ}\omega)\" \u03c0\u03bf\u03c5 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03b6\u03b5\u03b9 \u03b7 \"\varepsilon\" \u03bc\u03b5 \u03c4\u03bf\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 \"x'x\".<\/p>\n\n\n\n

\u03a0\u03c1\u03bf\u03c6\u03b1\u03bd\u03ce\u03c2 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2:<\/p>\n\n\n\n

    \n
  • \u03b5\u03af\u03bd\u03b1\u03b9 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc\u03c2, \u03b1\u03bd \u03b7 \u03b3\u03c9\u03bd\u03af\u03b1 \"\omega\" \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03be\u03b5\u03af\u03b1,<\/li>\n\n\n\n
  • \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc\u03c2, \u03b1\u03bd \u03b7 \u03b3\u03c9\u03bd\u03af\u03b1 \"\omega\" \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bc\u03b2\u03bb\u03b5\u03af\u03b1,<\/li>\n\n\n\n
  • \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03bf\u03c2 \u03bc\u03b5 \u03bc\u03b7\u03b4\u03ad\u03bd, \u03b1\u03bd \u03b7 \u03b3\u03c9\u03bd\u03af\u03b1 \"\omega\" \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03ae, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03b1\u03bd \u03b7 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 \u03c3\u03c4\u03bf\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 \"x'x\".<\/li>\n<\/ul>\n\n\n\n

    \u03a0\u03c1\u03bf\u03c3\u03bf\u03c7\u03ae:<\/strong><\/p>\n\n\n\n

    \u03a3\u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b7 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1 \"\varepsilon\" \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03ac\u03b8\u03b5\u03c4\u03b7 \u03c3\u03c4\u03bf\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 \"x'x\", \u03b4\u03b5\u03bd \u03bf\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c5\u03b8\u03b5\u03af\u03b1 \u03b1\u03c5\u03c4\u03ae.<\/p>\n\n\n\n

    \u039a\u03b1\u03c4\u03b1\u03bb\u03b7\u03ba\u03c4\u03b9\u03ba\u03ae \u03b5\u03c0\u03b9\u03c3\u03ae\u03bc\u03b1\u03bd\u03c3\u03b7<\/h3>\n\n\n\n

    \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03ac\u03b3\u03c9\u03b3\u03bf \u03bc\u03b9\u03b1\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03b7 \u03b3\u03b5\u03c9\u03bc\u03b5\u03c4\u03c1\u03b9\u03ba\u03ae \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1 \u03c4\u03b7\u03c2 \u03ba\u03bb\u03af\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf.<\/p>\n\n\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    \u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03a0\u03c9\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 , \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf ;\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf ; (\u0397\u039c. 2000) \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03ac\u03b3\u03c9\u03b3\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf . \u0394\u03b7\u03bb\u03b1\u03b4\u03ae, \u03b5\u03af\u03bd\u03b1\u03b9     \u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3570","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"featured_image_src":null,"author_info":{"display_name":"admin","author_link":"https:\/\/gbelentzas.sites.sch.gr\/?author=1"},"yoast_head":"\n\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 - MathsEdu.gr<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gbelentzas.sites.sch.gr\/?p=3570\" \/>\n<meta property=\"og:locale\" content=\"el_GR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 - MathsEdu.gr\" \/>\n<meta property=\"og:description\" content=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03a0\u03c9\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 , \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf ;\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf ; (\u0397\u039c. 2000) \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03ac\u03b3\u03c9\u03b3\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf . \u0394\u03b7\u03bb\u03b1\u03b4\u03ae, \u03b5\u03af\u03bd\u03b1\u03b9     \u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gbelentzas.sites.sch.gr\/?p=3570\" \/>\n<meta property=\"og:site_name\" content=\"MathsEdu.gr\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/MathsEdu.gr\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-20T13:44:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-20T13:59:30+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0395\u03ba\u03c4\u03b9\u03bc\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03bd\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7\u03c2\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u03bb\u03b5\u03c0\u03c4\u03ac\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/#\\\/schema\\\/person\\\/511115b6820d1a71ade6791721485e15\"},\"headline\":\"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2\",\"datePublished\":\"2026-04-20T13:44:21+00:00\",\"dateModified\":\"2026-04-20T13:59:30+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570\"},\"wordCount\":92,\"commentCount\":0,\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570\",\"url\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570\",\"name\":\"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 - MathsEdu.gr\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/#website\"},\"datePublished\":\"2026-04-20T13:44:21+00:00\",\"dateModified\":\"2026-04-20T13:59:30+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/#\\\/schema\\\/person\\\/511115b6820d1a71ade6791721485e15\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570#breadcrumb\"},\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?p=3570#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u0391\u03c1\u03c7\u03b9\u03ba\u03ae\",\"item\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/#website\",\"url\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/\",\"name\":\"MathsEdu.gr\",\"description\":\"Cogito, ergo sum\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"el\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/#\\\/schema\\\/person\\\/511115b6820d1a71ade6791721485e15\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/5d3745536696b9acb416bea66176dbbcab3ab6762f3073b60add594c3e8ad20d?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/5d3745536696b9acb416bea66176dbbcab3ab6762f3073b60add594c3e8ad20d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/5d3745536696b9acb416bea66176dbbcab3ab6762f3073b60add594c3e8ad20d?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\\\/\\\/gbelentzas.sites.sch.gr\"],\"url\":\"https:\\\/\\\/gbelentzas.sites.sch.gr\\\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 - MathsEdu.gr","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570","og_locale":"el_GR","og_type":"article","og_title":"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 - MathsEdu.gr","og_description":"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03a0\u03c9\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 , \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf ;\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf ; (\u0397\u039c. 2000) \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03af\u03c3\u03b9\u03bc\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03ac\u03b3\u03c9\u03b3\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03bf . \u0394\u03b7\u03bb\u03b1\u03b4\u03ae, \u03b5\u03af\u03bd\u03b1\u03b9     \u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2...","og_url":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570","og_site_name":"MathsEdu.gr","article_publisher":"https:\/\/www.facebook.com\/MathsEdu.gr","article_published_time":"2026-04-20T13:44:21+00:00","article_modified_time":"2026-04-20T13:59:30+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc":"admin","\u0395\u03ba\u03c4\u03b9\u03bc\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03bd\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7\u03c2":"2 \u03bb\u03b5\u03c0\u03c4\u03ac"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570#article","isPartOf":{"@id":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570"},"author":{"name":"admin","@id":"https:\/\/gbelentzas.sites.sch.gr\/#\/schema\/person\/511115b6820d1a71ade6791721485e15"},"headline":"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2","datePublished":"2026-04-20T13:44:21+00:00","dateModified":"2026-04-20T13:59:30+00:00","mainEntityOfPage":{"@id":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570"},"wordCount":92,"commentCount":0,"articleSection":["Uncategorized"],"inLanguage":"el","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/gbelentzas.sites.sch.gr\/?p=3570#respond"]}]},{"@type":"WebPage","@id":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570","url":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570","name":"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 - MathsEdu.gr","isPartOf":{"@id":"https:\/\/gbelentzas.sites.sch.gr\/#website"},"datePublished":"2026-04-20T13:44:21+00:00","dateModified":"2026-04-20T13:59:30+00:00","author":{"@id":"https:\/\/gbelentzas.sites.sch.gr\/#\/schema\/person\/511115b6820d1a71ade6791721485e15"},"breadcrumb":{"@id":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570#breadcrumb"},"inLanguage":"el","potentialAction":[{"@type":"ReadAction","target":["https:\/\/gbelentzas.sites.sch.gr\/?p=3570"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/gbelentzas.sites.sch.gr\/?p=3570#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u0391\u03c1\u03c7\u03b9\u03ba\u03ae","item":"https:\/\/gbelentzas.sites.sch.gr\/"},{"@type":"ListItem","position":2,"name":"\u0395\u03c6\u03b1\u03c0\u03c4\u03bf\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2"}]},{"@type":"WebSite","@id":"https:\/\/gbelentzas.sites.sch.gr\/#website","url":"https:\/\/gbelentzas.sites.sch.gr\/","name":"MathsEdu.gr","description":"Cogito, ergo sum","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/gbelentzas.sites.sch.gr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"el"},{"@type":"Person","@id":"https:\/\/gbelentzas.sites.sch.gr\/#\/schema\/person\/511115b6820d1a71ade6791721485e15","name":"admin","image":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/secure.gravatar.com\/avatar\/5d3745536696b9acb416bea66176dbbcab3ab6762f3073b60add594c3e8ad20d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/5d3745536696b9acb416bea66176dbbcab3ab6762f3073b60add594c3e8ad20d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/5d3745536696b9acb416bea66176dbbcab3ab6762f3073b60add594c3e8ad20d?s=96&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/gbelentzas.sites.sch.gr"],"url":"https:\/\/gbelentzas.sites.sch.gr\/?author=1"}]}},"_links":{"self":[{"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=\/wp\/v2\/posts\/3570","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3570"}],"version-history":[{"count":12,"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=\/wp\/v2\/posts\/3570\/revisions"}],"predecessor-version":[{"id":3584,"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=\/wp\/v2\/posts\/3570\/revisions\/3584"}],"wp:attachment":[{"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gbelentzas.sites.sch.gr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}