eil x)

Returns the smallest integer value number that is not less than x.</pre><a href="https://janetdocs.org/math/ceil">Community Examples</a></div><hr><div class="binding"><span id="math/cos" class="binding-sym">math/cos</span> <span class="binding-type">cfunction</span>  <pre class="binding-text">(math/cos x)

Returns the cosine of x.</pre><a href="https://janetdocs.org/math/cos">Community Examples</a></div><hr><div class="binding"><span id="math/cosh" class="binding-sym">math/cosh</span> <span class="b