Help/UnaryOps/acos.html

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  30 <p class="p1"><span class="s1"><b>acos<span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>arccosine</b></p>
  31 <p class="p2"><br></p>
  32 <p class="p1"><b>a.acos</b></p>
  33 <p class="p1"><b>acos(a)</b></p>
  34 <p class="p2"><br></p>
  35 <p class="p2"><br></p>
  36 <p class="p2"><br></p>
  37 <p class="p3"><span class="s2"><a href="../Math/SimpleNumber.html">SimpleNumber</a></span></p>
  38 <p class="p4"><br></p>
  39 <p class="p5">acos(0);</p>
  40 <p class="p5">0.acos;</p>
  41 <p class="p6"><br></p>
  42 <p class="p5">acos(0) == 0.5pi; <span class="s3">// true</span></p>
  43 <p class="p7"><span class="s4">acos(2); </span>// nan: no value of absolute value greater 1.0</p>
  44 <p class="p6"><br></p>
  45 <p class="p6"><br></p>
  46 <p class="p3"><span class="s2"><a href="../Collections/SequenceableCollection.html">SequenceableCollection</a></span></p>
  47 <p class="p6"><br></p>
  48 <p class="p5">[0.5, 0.8, [-1, 1]].acos;</p>
  49 <p class="p7">// acos is the reverse of cos:</p>
  50 <p class="p5">c = sin(<span class="s5">_</span> + 0.5pi); <span class="s3">// cos function</span></p>
  51 <p class="p5">c.([-1, -0.5, 0, 0.5, 1]).acos;</p>
  52 <p class="p6"><br></p>
  53 <p class="p3"><span class="s2"><a href="../Core/Symbol.html">Symbol</a></span></p>
  54 <p class="p6"><br></p>
  55 <p class="p8"><span class="s6">\foo</span><span class="s4">.acos; </span>// returns itself. this is used in Envelopes see <a href="../Control/Env.html"><span class="s7">Env</span></a>.</p>
  56 <p class="p6"><br></p>
  57 <p class="p4"><br></p>
  58 <p class="p3"><span class="s2"><a href="../Core/Kernel/Function.html">Function</a></span></p>
  59 <p class="p4"><br></p>
  60 <p class="p5">f = acos({<span class="s8">|x|</span> sin(x) });</p>
  61 <p class="p5">f.value((0..1000).normalize(0, 8pi)).plot;</p>
  62 <p class="p6"><br></p>
  63 <p class="p3"><span class="s2"><a href="../UGens/UGen.html">UGen</a></span></p>
  64 <p class="p6"><br></p>
  65 <p class="p5">(</p>
  66 <p class="p5">{</p>
  67 <p class="p5"><span class="Apple-tab-span">     </span><span class="s5">var</span> a = <span class="s5">LFSaw</span>.ar(100);</p>
  68 <p class="p5"><span class="Apple-tab-span">     </span>[a, a.acos]</p>
  69 <p class="p5">}.plot</p>
  70 <p class="p5">)</p>
  71 <p class="p6"><br></p>
  72 <p class="p5">(</p>
  73 <p class="p5">{</p>
  74 <p class="p5"><span class="Apple-tab-span">     </span><span class="s5">var</span> a;</p>
  75 <p class="p5"><span class="Apple-tab-span">     </span>a = <span class="s5">Line</span>.ar(-1, 1, 0.01);</p>
  76 <p class="p5"><span class="Apple-tab-span">     </span>(a.acos / 0.5pi) - 1</p>
  77 <p class="p5">}.plot</p>
  78 <p class="p5">)</p>
  79 <p class="p6"><br></p>
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