r_binary_scalar1 (const expression1_type &amp;e1,
const expression2_type &amp;e2)</code></td>
<td>Constructs a description of the expression.</td>
</tr>
<tr>
<td><code>vector_binary_scalar2 (const expression1_type &amp;e1,
const expression2_type &amp;e2)</code></td>
<td>Constructs a description of the expression.</td>
</tr>
<tr>
<td><code>size_type size () const</code></td>
<td>Returns the size of the expression.</td>
</tr>
<tr>
<td><code>const_reference operator () (size_type i)
const</code></td>
<td>Retur