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| <title>The GNU Fortran Compiler: FRACTION</title> |
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| <a name="FRACTION-_002d_002d_002d-Fractional-part-of-the-model-representation"></a> |
| <h3 class="section">8.91 <code>FRACTION</code> — Fractional part of the model representation</h3> |
| <a name="index-FRACTION"></a> |
| <a name="index-real-number_002c-fraction"></a> |
| <a name="index-floating-point_002c-fraction"></a> |
| |
| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p><code>FRACTION(X)</code> returns the fractional part of the model |
| representation of <code>X</code>. |
| </p> |
| </dd> |
| <dt><em>Standard</em>:</dt> |
| <dd><p>Fortran 95 and later |
| </p> |
| </dd> |
| <dt><em>Class</em>:</dt> |
| <dd><p>Elemental function |
| </p> |
| </dd> |
| <dt><em>Syntax</em>:</dt> |
| <dd><p><code>Y = FRACTION(X)</code> |
| </p> |
| </dd> |
| <dt><em>Arguments</em>:</dt> |
| <dd><table> |
| <tr><td width="15%"><var>X</var></td><td width="70%">The type of the argument shall be a <code>REAL</code>.</td></tr> |
| </table> |
| |
| </dd> |
| <dt><em>Return value</em>:</dt> |
| <dd><p>The return value is of the same type and kind as the argument. |
| The fractional part of the model representation of <code>X</code> is returned; |
| it is <code>X * RADIX(X)**(-EXPONENT(X))</code>. |
| </p> |
| </dd> |
| <dt><em>Example</em>:</dt> |
| <dd><div class="smallexample"> |
| <pre class="smallexample">program test_fraction |
| real :: x |
| x = 178.1387e-4 |
| print *, fraction(x), x * radix(x)**(-exponent(x)) |
| end program test_fraction |
| </pre></div> |
| |
| </dd> |
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