Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion

<div class="floats-full-page floats-full-page-other"><h2>Table 3</h2><div class="floats-full-page-caption">Relative and absolute error of the model.</div><div class="floats-full-page-content"><table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr /></td></tr><tr class="thead"><td align="left" rowspan="2">Year</td><td align="center" rowspan="2">&#13;
                Original values ($/t)</td><td align="center" rowspan="2">&#13;
                Simulated values ($/t)</td><td align="center" colspan="2">&#13;
                Whitenization <svg height="9.1625004" id="M308" style="vertical-align:-0.13794pt" version="1.1" viewbox="0 0 12.0875 9.1625004" width="12.0875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,8.338)"><path d="M615 290q0 -148 -114 -245q-65 -57 -125 -57q-39 0 -62 27t-29 70q-31 -41 -72 -69t-74 -28q-49 0 -82.5 43t-33.5 124q0 97 55 174.5t148 124.5l15 -24q-59 -45 -94 -113t-35 -146q0 -58 19.5 -88.5t48.5 -30.5q33 0 62 34.5t45 101.5q16 73 20 135l80 17l5 -6&#10;q-11 -37 -23.5 -100t-12.5 -92q0 -47 16.5 -71.5t44.5 -24.5q62 0 95.5 67t33.5 160q0 107 -63 152l1 9q14 14 45 14q29 0 57.5 -44t28.5 -114z" id="x1D714"></path></g>
</svg> = 0.5</td><td align="center" rowspan="2">Relative error</td><td align="center" rowspan="2">Absolute error</td><td align="center" rowspan="2">Relative error (%)</td></tr><tr class="thead"><td align="center">Original</td><td align="center">Simulated</td></tr><tr><td class="thead-hr" colspan="8"><hr /></td></tr><tr><td align="left">2009</td><td align="center"><svg height="15.9625" id="M309" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1385, 1931<svg height="15.9625" id="M310" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center"><svg height="15.9625" id="M311" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1385, 1931<svg height="15.9625" id="M312" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center">1658</td><td align="center">1658</td><td align="center">0</td><td align="center">0</td><td align="center">0</td></tr><tr><td align="left">2010</td><td align="center"><svg height="15.9625" id="M313" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>2016, 2304<svg height="15.9625" id="M314" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center"><svg height="15.9625" id="M315" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1941, 2466<svg height="15.9625" id="M316" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center">2160</td><td align="center">2204</td><td align="center">−44</td><td align="center">44</td><td align="center">−2.03</td></tr><tr><td align="left">2011</td><td align="center"><svg height="15.9625" id="M317" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>2057, 2333<svg height="15.9625" id="M318" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center"><svg height="15.9625" id="M319" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1792, 2404<svg height="15.9625" id="M320" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center">2195</td><td align="center">2098</td><td align="center">97</td><td align="center">97</td><td align="center">+4.42</td></tr><tr><td align="left">2012</td><td align="center"><svg height="15.9625" id="M321" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1895, 2005<svg height="15.9625" id="M322" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center"><svg height="15.9625" id="M323" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1647, 2346<svg height="15.9625" id="M324" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center">1950</td><td align="center">1997</td><td align="center">−47</td><td align="center">47</td><td align="center">−2.41</td></tr><tr><td align="left">2013</td><td align="center"><svg height="15.9625" id="M325" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1849, 1971<svg height="15.9625" id="M326" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center"><svg height="15.9625" id="M327" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M290 -163h-170v866h170v-28q-79 -7 -94 -19.5t-15 -72.5v-627q0 -59 14.5 -71.5t94.5 -19.5v-28z" id="x5B"></path></g>
</svg>1505, 2293<svg height="15.9625" id="M328" style="vertical-align:-1.95624pt" version="1.1" viewbox="0 0 7.1125002 15.9625" width="7.1125002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.625,12.575)"><path d="M226 -163h-170v27q79 7 94 20t15 73v627q0 59 -15 72t-94 20v27h170v-866z" id="x5D"></path></g>
</svg></td><td align="center">1910</td><td align="center">1899</td><td align="center">11</td><td align="center">11</td><td align="center">+0.57</td></tr><tr class="table-tr"><td colspan="8"><hr class="tbody-hr" /></td></tr></table></td></tr></table></div></div>

Table 3 | Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion

title

Table 3: Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion

description

Table 3

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