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Annotation of loncom/homework/templates/functionplotback.problem, revision 1.1

1.1     ! www         1: <problem>
        !             2: <script type="loncapa/perl">$x=&random(-5,5,2);
        !             3: $y=&random(-3,3,2);
        !             4: $a=&random(0.5,0.9,0.1);
        !             5: if (&random(0,1,1)) {
        !             6:    $function="$a*(x-($x))^2+($y)";
        !             7:    $relation='gt';
        !             8: } else {
        !             9:    $function="-$a*(x-($x))^2+($y)";
        !            10:    $relation='lt';
        !            11: }</script>
        !            12: <startouttext />
        !            13: Provide a sketch of the derivative of the indicated function<br /> <endouttext />
        !            14: <functionplotresponse xaxisvisible="yes" xlabel="x" gridvisible="yes" ylabel="y(x)" id="11" xmax="10" yaxisvisible="yes" xmin="-10" ymin="-10" ymax="10">
        !            15: <functionplotelements>
        !            16: <spline initx="-4" inity="0" index="A" order="3" scalex="8" />
        !            17: <backgroundplot function="$function" fixed="yes" />
        !            18: </functionplotelements>
        !            19: <functionplotruleset>
        !            20: <functionplotrule relationship="eq" xinitial="$x" value="0" derivativeorder="0" percenterror="2" index="extreme" />
        !            21: <functionplotrule relationship="$relation" xinitiallabel="start" xfinallabel="end" value="0" derivativeorder="1" percenterror="10" index="slope" />
        !            22: <functionplotrule relationship="eq" xinitiallabel="start" xfinallabel="end" value="0" derivativeorder="2" percenterror="50" index="linear" />
        !            23: </functionplotruleset>
        !            24: </functionplotresponse>
        !            25: </problem>