<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article  PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article"><front><journal-meta><journal-id journal-id-type="publisher-id">AM</journal-id><journal-title-group><journal-title>Applied Mathematics</journal-title></journal-title-group><issn pub-type="epub">2152-7385</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/am.2016.73030</article-id><article-id pub-id-type="publisher-id">AM-64069</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Physics&amp;Mathematics</subject></subj-group></article-categories><title-group><article-title>
 
 
  Series Representation of Power Function
 
</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>etro</surname><given-names>Kolosov</given-names></name><xref ref-type="aff" rid="aff1"><sub>1</sub></xref></contrib></contrib-group><aff id="aff1"><label>1</label><addr-line>Marine Engineering Department, Odessa State Maritime Academy, Odessa, Ukraine</addr-line></aff><author-notes><corresp id="cor1">* E-mail:</corresp></author-notes><pub-date pub-type="epub"><day>24</day><month>02</month><year>2016</year></pub-date><volume>07</volume><issue>03</issue><fpage>327</fpage><lpage>333</lpage><history><date date-type="received"><day>22</day>	<month>December</month>	<year>2015</year></date><date date-type="rev-recd"><day>accepted</day>	<month>26</month>	<year>February</year>	</date><date date-type="accepted"><day>29</day>	<month>February</month>	<year>2016</year></date></history><permissions><copyright-statement>&#169; Copyright  2014 by authors and Scientific Research Publishing Inc. </copyright-statement><copyright-year>2014</copyright-year><license><license-p>This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/</license-p></license></permissions><abstract><p><html>
 <head></head>
 
  This paper presents the way to make expansion for the next form function: 
  <img src="Edit_60469881-7305-4a23-9157-6dbd561a72a6.jpg" alt="" /> to the numerical series. The most widely used methods to solve this problem are Newtons Binomial Theorem and Fundamental Theorem of Calculus (that is, derivative and integral are inverse operators). The paper provides the other kind of solution, except above described theorems.
 
</html></p></abstract><kwd-group><kwd>Series Expansion</kwd><kwd> Series Representation</kwd><kwd> Binomial Theorem</kwd><kwd> Power Function</kwd><kwd> Cube Number</kwd><kwd> Number to Power</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>1. Introduction</title><p>Let basically describe Newtons Binomial Theorem and Fundamental Theorem of Calculus and some their properties. In elementary algebra, the binomial theorem (or binomial expansion) describes the algebraic expansion of powers of a binomial. According to the theorem, it is possible to expand the power <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x7.png" xlink:type="simple"/></inline-formula> into a sum involving terms of the form <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x8.png" xlink:type="simple"/></inline-formula> where the exponents b and c are nonnegative integers with<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x9.png" xlink:type="simple"/></inline-formula>, and the coefficient a of each term is a specific positive integer depending on n and b. The coefficient a in the term of <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x10.png" xlink:type="simple"/></inline-formula> is known as the binomial coefficient. The main properties of the binominal theorem are next:</p><p>1) The powers of x go down until it reaches <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x11.png" xlink:type="simple"/></inline-formula> starting value is n (the n in<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x12.png" xlink:type="simple"/></inline-formula>).</p><p>2) The powers of y go up from 0 (<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x13.png" xlink:type="simple"/></inline-formula>) until it reaches n (also n in<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x14.png" xlink:type="simple"/></inline-formula>).</p><p>3) The n-th row of the Pascal’s Triangle will be the coefficients of the expanded binomial.</p><p>4) For each line, the number of products (i.e. the sum of the coefficients) is equal to <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x15.png" xlink:type="simple"/></inline-formula></p><p>5) For each line, the number of product groups is equal to<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x16.png" xlink:type="simple"/></inline-formula>.</p><p>By using binomial theorem for our case, we obtain next type function [<xref ref-type="bibr" rid="scirp.64069-ref1">1</xref>] :</p><disp-formula id="scirp.64069-formula87"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x17.png"  xlink:type="simple"/></disp-formula><p>We can reach the same result by using Fundamental Theorem of Calculus, according it we have [<xref ref-type="bibr" rid="scirp.64069-ref2">2</xref>] :</p><disp-formula id="scirp.64069-formula88"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x18.png"  xlink:type="simple"/></disp-formula><p>by means of the addition of integrals</p><disp-formula id="scirp.64069-formula89"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x19.png"  xlink:type="simple"/></disp-formula><p>For presented in this paper method, the properties of binomial theorem are not corresponded and prime function (i.e function, which we use with sum operator) has the recursion structure for x basic view is the next:<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x20.png" xlink:type="simple"/></inline-formula>. Below is represented theoretical algorithm deducing such a function, which, when substituted to the sum operator, with some k number of iterations, returns the correct value of a number <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x20.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x21.png" xlink:type="simple"/></inline-formula> to power<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x20.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x21.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x22.png" xlink:type="simple"/></inline-formula>. The main idea that the law for basic elements distribution of the value to third powers seen in finding the n-rank difference (n-rank difference is written as<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x20.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x21.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x22.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x23.png" xlink:type="simple"/></inline-formula>) between nearest two items<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x20.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x21.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x22.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x23.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x24.png" xlink:type="simple"/></inline-formula>. For example, let there be a set of numbers, which x has constant difference between numbers, constant difference is a key of this method (example for<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x20.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x21.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x22.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x23.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x24.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x25.png" xlink:type="simple"/></inline-formula>):</p><p>where deltas for <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x26.png" xlink:type="simple"/></inline-formula> distribution are equal to:</p><disp-formula id="scirp.64069-formula90"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x27.png"  xlink:type="simple"/></disp-formula><p>going from it we can get next property of the powers function:</p><disp-formula id="scirp.64069-formula91"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x28.png"  xlink:type="simple"/></disp-formula><p>According <xref ref-type="table" rid="table1">Table 1</xref> (for case<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x29.png" xlink:type="simple"/></inline-formula>), the first rank delta has next regularity:</p><disp-formula id="scirp.64069-formula92"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x30.png"  xlink:type="simple"/></disp-formula><disp-formula id="scirp.64069-formula93"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x31.png"  xlink:type="simple"/></disp-formula><disp-formula id="scirp.64069-formula94"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x32.png"  xlink:type="simple"/></disp-formula><disp-formula id="scirp.64069-formula95"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x33.png"  xlink:type="simple"/></disp-formula><p>Note that upper sign shows the rank of the difference and doesn’t mean power sign. As we can see, according <xref ref-type="table" rid="table1">Table 1</xref>, the values of third rank difference are equal to <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x34.png" xlink:type="simple"/></inline-formula> and constant for each i. Going from it, we can to</p><table-wrap id="table1" ><label><xref ref-type="table" rid="table1">Table 1</xref></label><caption><title> Numbers according third power</title></caption><table><tbody><thead><tr><th align="center" valign="middle" >i</th><th align="center" valign="middle" ><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x35.png" xlink:type="simple"/></inline-formula></th><th align="center" valign="middle" ><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x36.png" xlink:type="simple"/></inline-formula></th><th align="center" valign="middle" ><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x37.png" xlink:type="simple"/></inline-formula></th><th align="center" valign="middle" ><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x38.png" xlink:type="simple"/></inline-formula></th></tr></thead><tr><td align="center" valign="middle" >0</td><td align="center" valign="middle" >0</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >6</td><td align="center" valign="middle" >6</td></tr><tr><td align="center" valign="middle" >1</td><td align="center" valign="middle" >1</td><td align="center" valign="middle" >7</td><td align="center" valign="middle" >12</td><td align="center" valign="middle" >6</td></tr><tr><td align="center" valign="middle" >2</td><td align="center" valign="middle" >8</td><td align="center" valign="middle" >19</td><td align="center" valign="middle" >18</td><td align="center" valign="middle" >6</td></tr><tr><td align="center" valign="middle" >3</td><td align="center" valign="middle" >27</td><td align="center" valign="middle" >37</td><td align="center" valign="middle" >24</td><td align="center" valign="middle" >6</td></tr><tr><td align="center" valign="middle" >4</td><td align="center" valign="middle" >64</td><td align="center" valign="middle" >61</td><td align="center" valign="middle" >30</td><td align="center" valign="middle" >6</td></tr><tr><td align="center" valign="middle" >5</td><td align="center" valign="middle" >125</td><td align="center" valign="middle" >91</td><td align="center" valign="middle" >36</td><td align="center" valign="middle" ></td></tr><tr><td align="center" valign="middle" >6</td><td align="center" valign="middle" >216</td><td align="center" valign="middle" >127</td><td align="center" valign="middle" ></td><td align="center" valign="middle" ></td></tr><tr><td align="center" valign="middle" >7</td><td align="center" valign="middle" >343</td><td align="center" valign="middle" ></td><td align="center" valign="middle" ></td><td align="center" valign="middle" ></td></tr></tbody></table></table-wrap><p>make conclusion of the next power functions property:<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x39.png" xlink:type="simple"/></inline-formula>, where <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x39.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x40.png" xlink:type="simple"/></inline-formula> and constant for each i. For <xref ref-type="table" rid="table1">Table 1</xref>, the delta functions are corresponding to next expressions:</p><disp-formula id="scirp.64069-formula96"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x41.png"  xlink:type="simple"/></disp-formula><p>where<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x42.png" xlink:type="simple"/></inline-formula>, hence, we have:</p><disp-formula id="scirp.64069-formula97"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x43.png"  xlink:type="simple"/></disp-formula><disp-formula id="scirp.64069-formula98"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x44.png"  xlink:type="simple"/></disp-formula><p>Let use sum operator for expression [<xref ref-type="bibr" rid="scirp.64069-ref3">3</xref>] , we obtain [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] :</p><disp-formula id="scirp.64069-formula99"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x45.png"  xlink:type="simple"/></disp-formula><p>Or</p><disp-formula id="scirp.64069-formula100"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x46.png"  xlink:type="simple"/></disp-formula><p>Now, we have successful formula, which disperses any natural number <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x47.png" xlink:type="simple"/></inline-formula> to the numerical series (this example shows only expansion for any number <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x47.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x48.png" xlink:type="simple"/></inline-formula> to third powers, but this method works for floats numbers also, it depends of start set of numbers, functions form also depends of the chosen set, step <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x47.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x48.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x49.png" xlink:type="simple"/></inline-formula> between numbers should be constant every time). Going from it, the next annex shows change over function to the range<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x47.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x48.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x49.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x50.png" xlink:type="simple"/></inline-formula>.</p></sec><sec id="s2"><title>2. Change over to Higher Powers Expression</title><p>In this section are reviewed the ways to change obtained in previous annex expression [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] to higher powers i.e<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x51.png" xlink:type="simple"/></inline-formula>. By means of Fundamental Theorem of Calculus, we know next [<xref ref-type="bibr" rid="scirp.64069-ref2">2</xref>] :</p><disp-formula id="scirp.64069-formula101"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x52.png"  xlink:type="simple"/></disp-formula><p>Expression [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] has the follow view:</p><disp-formula id="scirp.64069-formula102"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x53.png"  xlink:type="simple"/></disp-formula><p>As we can see, iteration limits for [<xref ref-type="bibr" rid="scirp.64069-ref2">2</xref>] and [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] are:<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x54.png" xlink:type="simple"/></inline-formula>, for each expression. Consequently, going from [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] , to make the transition to the functions of the form:</p><disp-formula id="scirp.64069-formula103"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x55.png"  xlink:type="simple"/></disp-formula><p>is not possible. Let change the formula [<xref ref-type="bibr" rid="scirp.64069-ref2">2</xref>] by the next way [<xref ref-type="bibr" rid="scirp.64069-ref5">5</xref>] :</p><disp-formula id="scirp.64069-formula104"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x56.png"  xlink:type="simple"/></disp-formula><p>Next, give the formula [<xref ref-type="bibr" rid="scirp.64069-ref2">2</xref>] follow changes:</p><disp-formula id="scirp.64069-formula105"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x57.png"  xlink:type="simple"/></disp-formula><p>Going from expression [<xref ref-type="bibr" rid="scirp.64069-ref5">5</xref>] for <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x58.png" xlink:type="simple"/></inline-formula> we obtain [<xref ref-type="bibr" rid="scirp.64069-ref6">6</xref>] :</p><disp-formula id="scirp.64069-formula106"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x59.png"  xlink:type="simple"/></disp-formula><p>By means of main property of the powers function<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x60.png" xlink:type="simple"/></inline-formula>, from formula [<xref ref-type="bibr" rid="scirp.64069-ref6">6</xref>] for <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x60.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x61.png" xlink:type="simple"/></inline-formula> we receive [<xref ref-type="bibr" rid="scirp.64069-ref7">7</xref>] :</p><disp-formula id="scirp.64069-formula107"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x62.png"  xlink:type="simple"/></disp-formula><p>According to the above property from the expression [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] for<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x63.png" xlink:type="simple"/></inline-formula>, we derive [<xref ref-type="bibr" rid="scirp.64069-ref8">8</xref>] :</p><disp-formula id="scirp.64069-formula108"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x64.png"  xlink:type="simple"/></disp-formula><p>For <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x65.png" xlink:type="simple"/></inline-formula> expression takes the next form [<xref ref-type="bibr" rid="scirp.64069-ref9">9</xref>] :</p><disp-formula id="scirp.64069-formula109"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x66.png"  xlink:type="simple"/></disp-formula><p>Expression [<xref ref-type="bibr" rid="scirp.64069-ref7">7</xref>] has the next property (as well right for [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] [<xref ref-type="bibr" rid="scirp.64069-ref6">6</xref>] -[<xref ref-type="bibr" rid="scirp.64069-ref8">8</xref>] ):</p><disp-formula id="scirp.64069-formula110"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x67.png"  xlink:type="simple"/></disp-formula></sec><sec id="s3"><title>3. Binomial Theorem Representation</title><p>By means of Binomial theorem for<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x68.png" xlink:type="simple"/></inline-formula>, we have expression:</p><disp-formula id="scirp.64069-formula111"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x69.png"  xlink:type="simple"/></disp-formula><p>According expression [<xref ref-type="bibr" rid="scirp.64069-ref2">2</xref>] , we have the next corresponding:</p><disp-formula id="scirp.64069-formula112"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x70.png"  xlink:type="simple"/></disp-formula><p>Let, going from expression [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] , change the binomial expansion for<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x71.png" xlink:type="simple"/></inline-formula>:</p><disp-formula id="scirp.64069-formula113"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x72.png"  xlink:type="simple"/></disp-formula><disp-formula id="scirp.64069-formula114"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x73.png"  xlink:type="simple"/></disp-formula><p>So, for<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x74.png" xlink:type="simple"/></inline-formula>, binomial expansion is next:</p><disp-formula id="scirp.64069-formula115"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x75.png"  xlink:type="simple"/></disp-formula><p>oing from it, by means of power function properties, we can only to multiply by x every product of the series, by this way, for <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x76.png" xlink:type="simple"/></inline-formula> we have next changes in binomial theorem:</p><disp-formula id="scirp.64069-formula116"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x77.png"  xlink:type="simple"/></disp-formula></sec><sec id="s4"><title>4. e<sup>x</sup> Representation</title><p>According above method we have right to present function <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x78.png" xlink:type="simple"/></inline-formula> the follow view (as the exponential function is the infinite sum of powers of x divided by value of factorial according to iteration step):</p><disp-formula id="scirp.64069-formula117"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x79.png"  xlink:type="simple"/></disp-formula><p>By means of general <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x80.png" xlink:type="simple"/></inline-formula> determination, we have right to represent, also, next way:</p><disp-formula id="scirp.64069-formula118"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x81.png"  xlink:type="simple"/></disp-formula></sec><sec id="s5"><title>5. Difference from Binomial Theorem</title><p>To show changes from binomial theorem, let use other algorithm for<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x82.png" xlink:type="simple"/></inline-formula>, which finally returns the binomial expansion. By means of power functions property:</p><disp-formula id="scirp.64069-formula119"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x83.png"  xlink:type="simple"/></disp-formula><p>We have right to integrate the <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x84.png" xlink:type="simple"/></inline-formula> to <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x84.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x85.png" xlink:type="simple"/></inline-formula> and represent the <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x84.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x85.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x86.png" xlink:type="simple"/></inline-formula> as:</p><disp-formula id="scirp.64069-formula120"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x87.png"  xlink:type="simple"/></disp-formula><p>For third derivative we have next equation:</p><disp-formula id="scirp.64069-formula121"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x88.png"  xlink:type="simple"/></disp-formula><p>Let derive the<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x89.png" xlink:type="simple"/></inline-formula>:</p><disp-formula id="scirp.64069-formula122"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x90.png"  xlink:type="simple"/></disp-formula><p>Let be<inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x91.png" xlink:type="simple"/></inline-formula>, so we have:</p><disp-formula id="scirp.64069-formula123"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x92.png"  xlink:type="simple"/></disp-formula><p>First derivative is next:</p><disp-formula id="scirp.64069-formula124"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x93.png"  xlink:type="simple"/></disp-formula><p>Let calculate the <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x94.png" xlink:type="simple"/></inline-formula> function, basic formula is next:</p><disp-formula id="scirp.64069-formula125"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x95.png"  xlink:type="simple"/></disp-formula><p>And for <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x96.png" xlink:type="simple"/></inline-formula> equals to:</p><disp-formula id="scirp.64069-formula126"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x97.png"  xlink:type="simple"/></disp-formula><p>In case of <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x98.png" xlink:type="simple"/></inline-formula> we obtain the first derivative:</p><disp-formula id="scirp.64069-formula127"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x99.png"  xlink:type="simple"/></disp-formula><p>So,</p><disp-formula id="scirp.64069-formula128"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x100.png"  xlink:type="simple"/></disp-formula><p>and corresponds to binomial expansion. Main difference is adjustable limits of the function [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] , see page 3 and 4.</p></sec><sec id="s6"><title>6. Conclusion</title><p>The paper presented a method of expansion of the function of the form <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x101.png" xlink:type="simple"/></inline-formula> to the numerical series. The disadvantages of this method are sophisticated form of expression and the complexity of calculating the value of these expressions of the some variables. Advantage of this method is the possibility of the suc- cessful application of this method in the solution of some problems in number theory, the theory of series, due to the differences from the common theory, displayed the difference from binomial expansion, presented example for exponential function representation by means of method from Section 2. The paper doesn’t consist the all combinations of power function representation (by means of the function [<xref ref-type="bibr" rid="scirp.64069-ref7">7</xref>] property and transformation [<xref ref-type="bibr" rid="scirp.64069-ref5">5</xref>] ). In the Application 1 are shown program codes for the most important expressions (by authors’ opinion). Future research in this direction could result the success polynomial kind expansion.</p></sec><sec id="s7"><title>Cite this paper</title><p>PetroKolosov, (2016) Series Representation of Power Function. Applied Mathematics,07,327-333. doi: 10.4236/am.2016.73030</p></sec><sec id="s8"><title>Application 1. Visual Basic 6.0 Program Codes</title><p>Expression [<xref ref-type="bibr" rid="scirp.64069-ref4">4</xref>] :</p><p>j = 6 x = Val(Text1.Text) n = Val(Text2.Text) r = 0 For k = 1 To x <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x102.png" xlink:type="simple"/></inline-formula> Next k</p><p>Expression [<xref ref-type="bibr" rid="scirp.64069-ref6">6</xref>] :</p><p>j = 6 x = Val(Text1.Text) n = Val(Text2.Text) r = 0 For k = 1 To x Step 1 For m = 0 To k − 1 Step 1 <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x103.png" xlink:type="simple"/></inline-formula> Next m <inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x103.png" xlink:type="simple"/></inline-formula><inline-formula><inline-graphic xlink:href="http://html.scirp.org/file/15-7403020x104.png" xlink:type="simple"/></inline-formula> Next k</p><p>Expression [<xref ref-type="bibr" rid="scirp.64069-ref7">7</xref>] :</p><p>j = 6</p><p>x = Val(Text1.Text)</p><p>n = Val(Text2.Text)</p><p>r = 0</p><p>For k = 1 To x Step 1</p><p>For m = 0 To k − 1 Step 1</p><disp-formula id="scirp.64069-formula129"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x105.png"  xlink:type="simple"/></disp-formula><p>Next m</p><disp-formula id="scirp.64069-formula130"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x106.png"  xlink:type="simple"/></disp-formula><p>Next k</p><p>e<sup>x</sup> Representation:</p><p>j = 6</p><p>e = 0</p><p>x = Val(Text1.Text)</p><p>r = Val(Text2.Text)</p><p>f = 0</p><p>For m = 0 To r Step 1</p><p>If m = 0 Then</p><p>f = 1</p><p>Else</p><p>f = f &#215; m</p><p>End If</p><p>For k = 1 To x</p><disp-formula id="scirp.64069-formula131"><graphic  xlink:href="http://html.scirp.org/file/15-7403020x107.png"  xlink:type="simple"/></disp-formula><p>Next k</p><p>Next m</p></sec></body><back><ref-list><title>References</title><ref id="scirp.64069-ref1"><label>1</label><mixed-citation publication-type="other" xlink:type="simple">Weisstein, E.W. 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