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<span class="hljs-comment">/* Maxima computer algebra system */</span>
<span class="hljs-built_in">print</span> (<span class="hljs-string">"mumble"</span>);
<span class="hljs-comment">/* this
<span class="hljs-comment">/* this is
<span class="hljs-comment">/* this is a nested comment */</span> nested comment
*/</span> comment
*/</span>
<span class="hljs-built_in">sin</span>(<span class="hljs-literal">%pi</span>); <span class="hljs-comment">/* should be highlighted again */</span>
<span class="hljs-comment">/* programming keywords */</span>
<span class="hljs-keyword">if</span> a <span class="hljs-keyword">then</span> b <span class="hljs-keyword">elseif</span> c <span class="hljs-keyword">then</span> d <span class="hljs-keyword">else</span> f;
<span class="hljs-keyword">for</span> x:<span class="hljs-number">1</span> <span class="hljs-keyword">thru</span> <span class="hljs-number">10</span> <span class="hljs-keyword">step</span> <span class="hljs-number">2</span> <span class="hljs-keyword">do</span> <span class="hljs-built_in">print</span>(x);
<span class="hljs-keyword">for</span> z:-<span class="hljs-number">2</span> <span class="hljs-keyword">while</span> z < <span class="hljs-number">0</span> <span class="hljs-keyword">do</span> <span class="hljs-built_in">print</span>(z);
<span class="hljs-keyword">for</span> m:<span class="hljs-number">0</span> <span class="hljs-keyword">unless</span> m > <span class="hljs-number">10</span> <span class="hljs-keyword">do</span> <span class="hljs-built_in">print</span>(m);
<span class="hljs-keyword">for</span> x <span class="hljs-keyword">in</span> [<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>] <span class="hljs-keyword">do</span> <span class="hljs-built_in">print</span>(x);
foo <span class="hljs-keyword">and</span> bar <span class="hljs-keyword">or</span> <span class="hljs-keyword">not</span> baz;
<span class="hljs-comment">/* different kinds of integers */</span>
<span class="hljs-built_in">ibase</span> : <span class="hljs-number">18</span> $
[<span class="hljs-number">0</span>, <span class="hljs-number">1234</span>, <span class="hljs-number">1234</span>., <span class="hljs-number">0abcdefgh</span>];
<span class="hljs-built_in">reset</span> (<span class="hljs-built_in">ibase</span>) $
<span class="hljs-comment">/* strings */</span>
s1 : <span class="hljs-string">"\"now\" is"</span>;
s2 : <span class="hljs-string">"the 'time' for all good men"</span>;
<span class="hljs-built_in">print</span> (s1, s2, <span class="hljs-string">"to come to the aid"</span>,
<span class="hljs-string">"of their country"</span>);
<span class="hljs-comment">/* expressions */</span>
foo (x, y, z) :=
<span class="hljs-keyword">if</span> x > <span class="hljs-number">1</span> + y
<span class="hljs-keyword">then</span> z - x*y
<span class="hljs-keyword">elseif</span> y <= <span class="hljs-number">100</span>!
<span class="hljs-keyword">then</span> x/(y + z)^<span class="hljs-number">2</span>
<span class="hljs-keyword">else</span> z - y . x . y;
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