//
   // Datei:    parabel.script
   // Autor:    Timo Ehmke (ehmke@geometria.de)
   //

  

   // Figurenbeschreibung 
   // ===================

   e[1]  = O;   point;   fixed;          0.0,0.0;                              "hidden"  
   e[2]  = OX;  point;   fixed;          1.0,0.0;                              "hidden"  
   e[3]  = OY;  point;   fixed;          0.0,1.0;                              "hidden"  
   e[4]  = K;   point;   coordSystem;    O,O,OX,O,OY,300,300,200,200; 
   e[5]  = a;   measure; controller;     0.5,0.125,-2.0,2.0,120,"a = ","";
   e[6]  = b;   measure; controller;     -1.0,0.25,-3.0,3.0,120,"b = ","";
   e[7]  = c;   measure; controller;     -2.0,0.25,-3.0,3.0,120,"c = ","";
   e[8]  = p;   line;    curve;          "t","calculate(a)*t^2+calculate(b)*t+calculate(c)",-8.0,8.0,70;