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| <h3 class="section">1.52 <code>sin</code>, <code>sinf</code>, <code>cos</code>, <code>cosf</code>—sine or cosine</h3> |
| |
| <p><a name="index-sin-140"></a><a name="index-sinf-141"></a><a name="index-cos-142"></a><a name="index-cosf-143"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <math.h> |
| double sin(double <var>x</var>); |
| float sinf(float <var>x</var>); |
| double cos(double <var>x</var>); |
| float cosf(float <var>x</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| <code>sin</code> and <code>cos</code> compute (respectively) the sine and cosine |
| of the argument <var>x</var>. Angles are specified in radians. |
| |
| <p><code>sinf</code> and <code>cosf</code> are identical, save that they take and |
| return <code>float</code> values. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| The sine or cosine of <var>x</var> is returned. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>sin</code> and <code>cos</code> are ANSI C. |
| <code>sinf</code> and <code>cosf</code> are extensions. |
| |
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