﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<?application progid="SMath Solver" version="1.5.0.9678"?>
<worksheet xmlns="http://smath.info/schemas/worksheet/1.0">
  <settings ppi="96">
    <identity>
      <id>3ff9934e-0071-4049-99d1-c9dc1e9d79f9</id>
      <revision>622</revision>
    </identity>
    <metadata lang="eng">
      <author>Alvaro Diaz Falconi</author>
    </metadata>
    <calculation>
      <precision>4</precision>
      <exponentialThreshold>5</exponentialThreshold>
      <trailingZeros>false</trailingZeros>
      <significantDigitsMode>false</significantDigitsMode>
      <mixedNumbers>false</mixedNumbers>
      <roundingMode>0</roundingMode>
      <approximateEqualAccuracy>3</approximateEqualAccuracy>
      <fractions>decimal</fractions>
    </calculation>
    <pageModel active="true" viewMode="0" printGrid="false" printAreas="true" simpleEqualsOnly="false" printBackgroundImages="true" hideElementsHighlightings="false">
      <paper id="9" orientation="Portrait" width="827" height="1169" />
      <margins left="39" right="39" top="49" bottom="49" />
      <footer alignment="Center" color="#a9a9a9">&amp;[PAGENUM] / &amp;[COUNT]</footer>
      <backgrounds />
    </pageModel>
    <dependencies>
      <assembly name="SMath Core" version="1.75.9678.0" guid="a37cba83-b69c-4c71-9992-55ff666763bd" />
      <assembly name="MathRegion" version="1.75.9678.0" guid="02f1ab51-215b-466e-a74d-5d8b1cf85e8d" />
      <assembly name="SpecialFunctions" version="1.75.9678.0" guid="2814e667-4e12-48b1-8d51-194e480eabc5" />
      <assembly name="DotNumerics" version="1.1.8269.16536" guid="2a69099d-3185-4ea7-a130-65f2bf94c8d6" />
      <assembly name="TextRegion" version="1.75.9678.0" guid="485d28c5-349a-48b6-93be-12a35a1c1e39" />
      <assembly name="ALGLIB® - numerical analysis library" version="1.0.8025.20709" guid="8e40b49c-3681-4332-903d-751303860e7b" />
      <assembly name="PlotRegion" version="1.75.9678.0" guid="c451c2b5-798b-4f08-b9ec-b90963d1ddaa" />
    </dependencies>
  </settings>
  <regions type="content">
    <region left="18" top="9" width="542" height="24" color="#008080" fontSize="10">
      <text lang="eng" fontFamily="Consolas" fontSize="10">
        <content>
          <p style="font-weight: bold; color: #008080;">Area and Arc Length of an Implicit Planar Closed Curve - Dragilev Method</p>
        </content>
      </text>
    </region>
    <region left="18" top="54" width="737" height="386" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">f</e>
          <e type="operand">xo</e>
          <e type="operand">yo</e>
          <e type="operand">Lo</e>
          <e type="operand">N</e>
          <e type="function" args="5">LS.DM</e>
          <e type="operand">u</e>
          <e type="function" args="1">F</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">f</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">f</e>
          <e type="operator" args="1">-</e>
          <e type="function" args="2">stack</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">xy</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">stack</e>
          <e type="operand">u</e>
          <e type="function" args="1">F</e>
          <e type="function" args="2">al_nleqsolve</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">t</e>
          <e type="operand">u</e>
          <e type="function" args="4">Clear</e>
          <e type="operand">Uo</e>
          <e type="operand">xo</e>
          <e type="operand">yo</e>
          <e type="function" args="2">xy</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operator" args="2">:</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="function" args="5">mat</e>
          <e type="operand">Δ</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">f</e>
          <e type="operand">y</e>
          <e type="function" args="2">diff</e>
          <e type="operator" args="1">-</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">f</e>
          <e type="operand">x</e>
          <e type="function" args="2">diff</e>
          <e type="function" args="2">stack</e>
          <e type="operator" args="2">:</e>
          <e type="operand">t</e>
          <e type="operand">u</e>
          <e type="function" args="2">D</e>
          <e type="operand">Δ</e>
          <e type="operand">Δ</e>
          <e type="function" args="1">norme</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">:</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operand">L</e>
          <e type="operand">N</e>
          <e type="function" args="2">RK</e>
          <e type="operand">Uo</e>
          <e type="operand">0</e>
          <e type="operand">L</e>
          <e type="operand">N</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">t</e>
          <e type="operand">u</e>
          <e type="function" args="2">D</e>
          <e type="function" args="5">dn_ExplicitRK45</e>
          <e type="operator" args="2">:</e>
          <e type="operand">u</e>
          <e type="function" args="1">φ</e>
          <e type="operand">U</e>
          <e type="operand">u</e>
          <e type="operand">N</e>
          <e type="function" args="2">RK</e>
          <e type="operator" args="2">:</e>
          <e type="operand">U</e>
          <e type="operand">N</e>
          <e type="operand">2</e>
          <e type="function" args="3">el</e>
          <e type="operand">U</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">-</e>
          <e type="operand">U</e>
          <e type="operand">N</e>
          <e type="operand">3</e>
          <e type="function" args="3">el</e>
          <e type="operand">U</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="2">stack</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">line</e>
          <e type="operator" args="2">:</e>
          <e type="operand">L</e>
          <e type="operand">1</e>
          <e type="operand">1</e>
          <e type="function" args="3">mat</e>
          <e type="operand">Lo</e>
          <e type="operand">u</e>
          <e type="function" args="1">φ</e>
          <e type="function" args="2">al_nleqsolve</e>
          <e type="operator" args="2">:</e>
          <e type="operand">RK</e>
          <e type="operand">L</e>
          <e type="operand">N</e>
          <e type="function" args="2">RK</e>
          <e type="operator" args="2">:</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operand">RK</e>
          <e type="operand">2</e>
          <e type="function" args="2">col</e>
          <e type="operand">RK</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="3">el</e>
          <e type="function" args="2">stack</e>
          <e type="operand">RK</e>
          <e type="operand">3</e>
          <e type="function" args="2">col</e>
          <e type="operand">RK</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="function" args="3">el</e>
          <e type="function" args="2">stack</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operator" args="2">:</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="function" args="2">range</e>
          <e type="operand">X</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operand">Y</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="4">mat</e>
          <e type="operand">X</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operand">Y</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">xy</e>
          <e type="function" args="1">transpose</e>
          <e type="operator" args="2">:</e>
          <e type="function" args="3">for</e>
          <e type="operand">X</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="2">el</e>
          <e type="operand">X</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operator" args="2">-</e>
          <e type="operand">Y</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="2">el</e>
          <e type="operand">Y</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operator" args="2">-</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="function" args="1">norme</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" args="4">sum</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">X</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operand">Y</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="2">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">X</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="2">el</e>
          <e type="operand">Y</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" args="4">sum</e>
          <e type="operator" args="2">*</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="operand">1</e>
          <e type="operand">4</e>
          <e type="function" args="6">mat</e>
          <e type="operand">10</e>
          <e type="operand">1</e>
          <e type="function" args="12">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region left="18" top="450" width="323" height="72" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">f</e>
          <e type="operand">x</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
          <e type="operand">y</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">+</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operand">3</e>
          <e type="operator" args="2">^</e>
          <e type="operand">x</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
          <e type="operand">y</e>
          <e type="operand">3</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">-</e>
          <e type="operator" args="2">:</e>
          <e type="operand">L</e>
          <e type="operand">S</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="operand">1</e>
          <e type="operand">4</e>
          <e type="function" args="6">mat</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">f</e>
          <e type="operand">1</e>
          <e type="operand">1</e>
          <e type="operand">10</e>
          <e type="operand">1000</e>
          <e type="function" args="5">LS.DM</e>
          <e type="operator" args="2">:</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">line</e>
        </input>
      </math>
    </region>
    <region left="405" top="450" width="313" height="235" color="#000000" fontSize="8">
      <plot type="2d" render="lines" scale_x="9.36699776886796" scale_y="9.36699776886796" scale_z="9.36699776886796" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-2" transpose_y="-9" transpose_z="0">
        <input>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="function" args="2">augment</e>
        </input>
      </plot>
    </region>
    <region left="18" top="540" width="84" height="24" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">L</e>
        </input>
        <result action="numeric">
          <e type="operand">7.2599</e>
        </result>
      </math>
    </region>
    <region left="18" top="567" width="84" height="24" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">S</e>
        </input>
        <result action="numeric">
          <e type="operand">3.6621</e>
        </result>
      </math>
    </region>
    <region left="9" top="720" width="60" height="24" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">Alvaro</e>
        </input>
      </math>
    </region>
    <region left="99" top="720" width="233" height="25" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">4</e>
          <e type="function" args="1">appVersion</e>
        </input>
        <result action="numeric">
          <e type="operand" style="string">1.75.9678.0</e>
        </result>
      </math>
    </region>
  </regions>
</worksheet>