//
  // Datei:    AParab.script
  // Autoren:  Timo Ehmke         (ehmke@ipn.uni-kiel.de)
  //           Martti E. Pesonen  (martti.pesonen@joensuu.fi) 
  //  
   WORLD_X_MAX = +5.0
   WORLD_X_MIN = -5.0
   WORLD_Y_MAX = +5.0
   WORLD_Y_MIN = -5.0 

  // Figurenbeschreibung 
  // =================== 
  // 
    
   
   e[1]  = O;   point;   fixed;          0.0,0.0;                              black; white; black;
   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;      1.0,0.05,-3.0,3.0,120, "a = ","";
   e[6]  = b;   measure; controller;      0.0,0.05,-3.0,3.0,120, "b = ","";
   e[7]  = c;   measure; controller;     -1.0,0.05,-3.0,3.0,120, "c = ","";
   e[8]  = p;   line;    curve;          "t","calculate(a)*t^2+calculate(b)*t+calculate(c)",-5.0,5.0,50;
   e[9]  = update;  measure;    JSfunction; "updateGeometria2","a","b","c";