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<div id="projectname">amath
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 <span id="projectnumber">1.6.2</span>
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<div id="projectbrief">Simple command line calculator</div>
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<a href="ccot_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2015-2017 Carsten Sonne Larsen <cs@innolan.dk></span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * modification, are permitted provided that the following conditions</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * are met:</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * notice, this list of conditions and the following disclaimer.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * notice, this list of conditions and the following disclaimer in the</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * documentation and/or other materials provided with the distribution.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> *</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> */</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#</span><span class="preprocessor">include</span> <a class="code" href="cplex_2prim_8h.html">"prim.h"</a></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#</span><span class="preprocessor">include</span> <a class="code" href="math_8h.html" title="Functions in math library for handling real numbers. ">"math.h"</a></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#</span><span class="preprocessor">include</span> <a class="code" href="complex_8h.html" title="Functions in math library for handling complex numbers. ">"complex.h"</a></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">/**</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * @brief Cotangent of a complex number</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * @details</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * Calculated as in Open Office:</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * <pre></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * a+bi</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * sin(2.0 * a)</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * real = ------------------------------</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * cosh(2.0 * b) - cos(2.0 * a)</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> *</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * -sinh(2.0 * b)</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * imag = ------------------------------</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * cosh(2.0 * b) - cos(2.0 * a)</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * </pre></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * https://wiki.openoffice.org/wiki/Documentation/How_Tos/Calc:_IMCOT_function</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> */</span></div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="ccot_8c.html#af55c6dec4ec4d7992aea8418480c221c"> 47</a></span> complex <a class="code" href="ccot_8c.html#af55c6dec4ec4d7992aea8418480c221c">ccot</a>(complex z)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  complex w;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">double</span> a, b;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">double</span> d;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  a = <a class="code" href="prim_8c.html#a4a236b24c0197821e3489a35a72079ab">creal</a><a class="code" href="prim_8c.html#a4a236b24c0197821e3489a35a72079ab">(</a>z<a class="code" href="prim_8c.html#a4a236b24c0197821e3489a35a72079ab">)</a>;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  b = <a class="code" href="prim_8c.html#aa1fe0b9371befabef6c41ba73470774a">cimag</a><a class="code" href="prim_8c.html#aa1fe0b9371befabef6c41ba73470774a">(</a>z<a class="code" href="prim_8c.html#aa1fe0b9371befabef6c41ba73470774a">)</a>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  d = <a class="code" href="cosh_8c.html#a3795d3c1f1d30819be56da4e4d67f64b">cosh</a><a class="code" href="cosh_8c.html#a3795d3c1f1d30819be56da4e4d67f64b">(</a>2.0 * b<a class="code" href="cosh_8c.html#a3795d3c1f1d30819be56da4e4d67f64b">)</a> - <a class="code" href="cos_8c.html#a5e7b53a694b3cf0f2d7debd444140fbd">cos</a><a class="code" href="cos_8c.html#a5e7b53a694b3cf0f2d7debd444140fbd">(</a>2.0 * a<a class="code" href="cos_8c.html#a5e7b53a694b3cf0f2d7debd444140fbd">)</a>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (d == 0.0) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  w = <a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">cpack</a><a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">(</a><a class="code" href="cplex_2prim_8h.html#a5f3d17bf39f78da3422ca52e475d7724">HUGE</a><a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">,</a> <a class="code" href="cplex_2prim_8h.html#a5f3d17bf39f78da3422ca52e475d7724">HUGE</a><a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">)</a>; <span class="comment">// TODO: INF, INF</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  w = <a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">cpack</a><a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">(</a>(<a class="code" href="sin_8c.html#aad4af25633b071b0e2cdb8ebd87eca77">sin</a><a class="code" href="sin_8c.html#aad4af25633b071b0e2cdb8ebd87eca77">(</a>2.0 * a<a class="code" href="sin_8c.html#aad4af25633b071b0e2cdb8ebd87eca77">)</a> / d)<a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">,</a> (-<a class="code" href="sinh_8c.html#a862012e970c977c482507064e2793b45">sinh</a><a class="code" href="sinh_8c.html#a862012e970c977c482507064e2793b45">(</a>2.0 * b<a class="code" href="sinh_8c.html#a862012e970c977c482507064e2793b45">)</a> / d)<a class="code" href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">)</a>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span> w;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</div><div class="ttc" id="cos_8c_html_a5e7b53a694b3cf0f2d7debd444140fbd"><div class="ttname"><a href="cos_8c.html#a5e7b53a694b3cf0f2d7debd444140fbd">cos</a></div><div class="ttdeci">double cos(double x)</div><div class="ttdoc">Trigonometric cosine function. </div><div class="ttdef"><b>Definition:</b> <a href="cos_8c_source.html#l00087">cos.c:87</a></div></div>
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<div class="ttc" id="prim_8c_html_a980e6e049f7902b05fc9eb5614b07a5c"><div class="ttname"><a href="prim_8c.html#a980e6e049f7902b05fc9eb5614b07a5c">cpack</a></div><div class="ttdeci">complex cpack(double x, double y)</div><div class="ttdoc">Pack two real numbers into a complex number. </div><div class="ttdef"><b>Definition:</b> <a href="prim_8c_source.html#l00071">prim.c:71</a></div></div>
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<div class="ttc" id="prim_8c_html_aa1fe0b9371befabef6c41ba73470774a"><div class="ttname"><a href="prim_8c.html#aa1fe0b9371befabef6c41ba73470774a">cimag</a></div><div class="ttdeci">double cimag(complex z)</div><div class="ttdoc">Imaginary part of complex number. </div><div class="ttdef"><b>Definition:</b> <a href="prim_8c_source.html#l00047">prim.c:47</a></div></div>
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<div class="ttc" id="ccot_8c_html_af55c6dec4ec4d7992aea8418480c221c"><div class="ttname"><a href="ccot_8c.html#af55c6dec4ec4d7992aea8418480c221c">ccot</a></div><div class="ttdeci">complex ccot(complex z)</div><div class="ttdoc">Cotangent of a complex number. </div><div class="ttdef"><b>Definition:</b> <a href="ccot_8c_source.html#l00047">ccot.c:47</a></div></div>
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<div class="ttc" id="cplex_2prim_8h_html_a5f3d17bf39f78da3422ca52e475d7724"><div class="ttname"><a href="cplex_2prim_8h.html#a5f3d17bf39f78da3422ca52e475d7724">HUGE</a></div><div class="ttdeci">#define HUGE</div><div class="ttdef"><b>Definition:</b> <a href="cplex_2prim_8h_source.html#l00040">prim.h:40</a></div></div>
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<div class="ttc" id="prim_8c_html_a4a236b24c0197821e3489a35a72079ab"><div class="ttname"><a href="prim_8c.html#a4a236b24c0197821e3489a35a72079ab">creal</a></div><div class="ttdeci">double creal(complex z)</div><div class="ttdoc">Real part of complex number. </div><div class="ttdef"><b>Definition:</b> <a href="prim_8c_source.html#l00038">prim.c:38</a></div></div>
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<div class="ttc" id="sinh_8c_html_a862012e970c977c482507064e2793b45"><div class="ttname"><a href="sinh_8c.html#a862012e970c977c482507064e2793b45">sinh</a></div><div class="ttdeci">double sinh(double x)</div><div class="ttdoc">Hyperbolic sine function. </div><div class="ttdef"><b>Definition:</b> <a href="sinh_8c_source.html#l00081">sinh.c:81</a></div></div>
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<div class="ttc" id="cosh_8c_html_a3795d3c1f1d30819be56da4e4d67f64b"><div class="ttname"><a href="cosh_8c.html#a3795d3c1f1d30819be56da4e4d67f64b">cosh</a></div><div class="ttdeci">double cosh(double x)</div><div class="ttdoc">Hyperbolic cosine function. </div><div class="ttdef"><b>Definition:</b> <a href="cosh_8c_source.html#l00084">cosh.c:84</a></div></div>
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<div class="ttc" id="sin_8c_html_aad4af25633b071b0e2cdb8ebd87eca77"><div class="ttname"><a href="sin_8c.html#aad4af25633b071b0e2cdb8ebd87eca77">sin</a></div><div class="ttdeci">double sin(double x)</div><div class="ttdoc">Trigonometric sine function. </div><div class="ttdef"><b>Definition:</b> <a href="sin_8c_source.html#l00087">sin.c:87</a></div></div>
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