&lt;span style="color: black; line-height: 115%; font-family: &amp;quot;Calibri&amp;quot;,&amp;quot;sans-serif&amp;quot;; font-size: 9.5pt; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-bidi-font-family: &amp;quot;Times New Roman&amp;quot;; mso-fareast-theme-font: minor-latin; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;"&gt;Nowadays, economics utilizes more and more frequently quantitative methods. This is an important phenomenon in the process of education. The paper deals with application of the Maple system for on-line creation of mathematical models in economic sectors. Means of Maple represent an important challenge for application in practice or research – resolve specific problems, apply mathematical models in many science fields, create intelligent documents for the presentation of modelling and analyses with computations, visualizations, animations, simulations. The paper incorporates selected samples of models in Maple and indicates further fields of its practical using, e.g. for measurement of marketing activity effectiveness.&lt;/span&gt;<br>&lt;p&gt;&lt;span style="color: black; line-height: 115%; font-family: &amp;quot;Calibri&amp;quot;,&amp;quot;sans-serif&amp;quot;; font-size: 9pt; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-bidi-font-family: &amp;quot;Times New Roman&amp;quot;; mso-fareast-theme-font: minor-latin; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;"&gt;Šiuolaikinė ekonomika vis dažniau ir plačiau taiko kiekybinius metodus. Tai yra svarbus veiksnys ug&amp;shy;dymo procese. Straipsnyje nagrinėjamas &lt;em&gt;Maple &lt;/em&gt;sistemos taikymas, matematinių modelių sukūrimas ir taikymas skirtinguose ekonominiuose sektoriuose. Jame apžvelgiamos plačios &lt;em&gt;Maple &lt;/em&gt;sistemos taikymo praktikoje ir moksliniuose tyrimuose galimybės, sprendžiant konkrečias ekonomines problemas; ma&amp;shy;tematinių modelių taikymo galimybės daugelyje mokslo sričių modeliuojant, analizuojant, kiekybiškai įvertinant ir vizualizuojant situacijas. Tokie modeliai turi platų taikomąjį pobūdį, pavyzdžiui, matuojant rinkodaros veiklos efektyvumą.&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span style="color: black; line-height: 115%; font-family: &amp;quot;Calibri&amp;quot;,&amp;quot;sans-serif&amp;quot;; font-size: 9pt; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-bidi-font-family: &amp;quot;Times New Roman&amp;quot;; mso-fareast-theme-font: minor-latin; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;"&gt;Straipsnis anglų kalba&lt;/span&gt;&lt;/p&gt;