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Annotation of loncom/homework/templates/SimpleFormula.problem, revision 1.2

1.2     ! albertel    1: <problem>
        !             2: <script type="loncapa/perl">$z=&random(1,10,1);
        !             3: $constant=&random(1,10,1);
        !             4: # y=x+z-constant, solving for x, x=y-z+constant, prettyconstant is for simplifying
        !             5: $prettyconstant=$constant-$z;
        !             6: $x="y+$prettyconstant";
        !             7: # code below substitutes '+-' and '-+' for '-'.  This is used in display of answer
        !             8: $x=~s/\+-/-/g;
        !             9: $x=~s/-\+/-/g;</script>
        !            10: 
        !            11: <startouttext />If z=$z and y=x+z-$constant, what does x equal?  
        !            12: <endouttext />
        !            13: 
        !            14: <formularesponse id="11" samples="y@-5:5#10" answer="$x">
        !            15:     <responseparam decription="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
        !            16:     <textline size="25" />    
        !            17: </formularesponse>
        !            18: 
        !            19: </problem>
1.1       albertel   20: