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1 <p>
2 Data type: <i>data-data</i> calculated from a function.
3 </p>
4 <pre>
5         $dx = ".3";
6         $max = 6.4;
7         $maxi = $max/$dx;
8         for ($i=0; $i<$maxi; $i++) {
9                 $a = 4;
10                 $x = $dx*$i;
11                 $data[$i] = array("", $x, $a*sin($x), 
12                               $a*cos($x), $a*cos($x+1));        
13         }
14 </pre>
15 <p>
16 Chart type: 
17 <select name="which_plot_type">
18     <option value="lines">Lines</option>
19     <option value="linepoints">Lines and points</option>
20     <option value="points">Points</option>
21     <option value="thinbarline">Thin bars</option>
22 </select>
23 <input type="hidden" name="which_data_type" value="function" />
24 </p>