# C1.CalcEngine.ExpressionEngine.ExpressionEngine.GetUnaryExpression

## Content

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<h1 id="C1_CalcEngine_ExpressionEngine_ExpressionEngine_GetUnaryExpression_" data-uid="C1.CalcEngine.ExpressionEngine.ExpressionEngine.GetUnaryExpression*">GetUnaryExpression Method
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<a id="C1_CalcEngine_ExpressionEngine_ExpressionEngine_GetUnaryExpression_" data-uid="C1.CalcEngine.ExpressionEngine.ExpressionEngine.GetUnaryExpression*"></a>
<h4 id="C1_CalcEngine_ExpressionEngine_ExpressionEngine_GetUnaryExpression_C1_CalcEngine_ExpressionEngine_Token_C1_CalcEngine_ExpressionEngine_IExpression_" data-uid="C1.CalcEngine.ExpressionEngine.ExpressionEngine.GetUnaryExpression(C1.CalcEngine.ExpressionEngine.Token,C1.CalcEngine.ExpressionEngine.IExpression)">GetUnaryExpression(Token, IExpression)</h4>
<div class="markdown level1 summary"><p>Gets a unary expression.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">protected virtual IExpression GetUnaryExpression(Token token, IExpression expression)</code></pre>
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  <pre><code class="lang-vbnet hljs">Protected Overridable Function GetUnaryExpression(token As Token, expression As IExpression) As IExpression</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
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    <tr>
      <td><a class="xref" href="C1.CalcEngine.ExpressionEngine.Token.html">Token</a></td>
      <td><span class="parametername">token</span></td>
      <td><p>the expression tree node.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.html">IExpression</a></td>
      <td><span class="parametername">expression</span></td>
      <td><p>the IExpression for calculating a unary operation.</p>
</td>
    </tr>
  </tbody>
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<h5 class="returns">Returns</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.html">IExpression</a></td>
      <td></td>
    </tr>
  </tbody>
</table>
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