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<a NAME="E1:49"/>
 <a href="complex1.html#K7" title="COMPLEX1:func.7">&lt;i&gt;</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  <a href="xcmplx_0.html#K2" title="XCMPLX_0:func.2">+</a> <span class="p1">(<span class="default">1 <a href="xcmplx_0.html#K3" title="XCMPLX_0:func.3">*</a> <a href="complex1.html#K7" title="COMPLEX1:func.7">&lt;i&gt;</a> </span>)</span>
 
;<br/>
<b>hence </b><a NAME="E2:49"/>
 <a href="comptrig.html#K1" title="COMPTRIG:func.1">Arg</a> <a href="complex1.html#K7" title="COMPLEX1:func.7">&lt;i&gt;</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <a href="sin_cos.html#K35" title="SIN_COS:func.35">PI</a>  <a href="real_1.html#K10" title="REAL_1:func.10">/</a> 2
 <b>by </b><i><a class="ref" href="comptrig.html#T55" target="_self" title="COMPTRIG:th.55">Th55</a></i>;<br/>


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