# C1.CalcEngine.ExpressionEngine.IExpression

## Content

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  <h1 id="C1_CalcEngine_ExpressionEngine_IExpression" data-uid="C1.CalcEngine.ExpressionEngine.IExpression" class="text-break">IExpression Interface
</h1>
  <div class="markdown level0 summary"><p>Defines parsed expressions.</p>
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  <div class="markdown level0 conceptual"></div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.CalcEngine.ExpressionEngine.html">C1.CalcEngine.ExpressionEngine</a></h6>
  <h6><strong>Assembly</strong>: C1.CalcEngine.dll</h6>
  <h5 id="C1_CalcEngine_ExpressionEngine_IExpression_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public interface IExpression : IComparable&lt;IExpression&gt;</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Interface IExpression
    Inherits IComparable(Of IExpression)</code></pre>
  </div>
  <h3 id="properties">Properties
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_IExpression_Engine" data-uid="C1.CalcEngine.ExpressionEngine.IExpression.Engine">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.Engine.html#C1_CalcEngine_ExpressionEngine_IExpression_Engine">Engine</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpressionEngine.html">IExpressionEngine</a> that owns this <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.html">IExpression</a>.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_IExpression_Expressions" data-uid="C1.CalcEngine.ExpressionEngine.IExpression.Expressions">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.Expressions.html#C1_CalcEngine_ExpressionEngine_IExpression_Expressions">Expressions</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the expressions used in this expression for evaluation.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_IExpression_Token" data-uid="C1.CalcEngine.ExpressionEngine.IExpression.Token">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.Token.html#C1_CalcEngine_ExpressionEngine_IExpression_Token">Token</a>
        </td>
        <td class="markdown level1 summary"><p>Gets a token of this expression.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_IExpression_Evaluate" data-uid="C1.CalcEngine.ExpressionEngine.IExpression.Evaluate">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.Evaluate.html#C1_CalcEngine_ExpressionEngine_IExpression_Evaluate">Evaluate()</a>
        </td>
        <td class="markdown level1 summary"><p>Gets a result of expression.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_IExpression_Optimize" data-uid="C1.CalcEngine.ExpressionEngine.IExpression.Optimize">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.IExpression.Optimize.html#C1_CalcEngine_ExpressionEngine_IExpression_Optimize">Optimize()</a>
        </td>
        <td class="markdown level1 summary"><p>Optimizes this expression.</p>
</td>
      </tr>
    </tbody>
  </table>

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