'kulma'
"var kulmaa=[]; var kulma=[];\n"
+"angleo=JSXBoard_b .create('point', [5,5], {visible:false});\n"
+"angleu=JSXBoard_b .create('point', [6,5], {visible:false});\n"
+"JSXBoard_b .create('segment', [angleo,angleu], {highlight:false});\n"
+"anglec=JSXBoard_b .create('circle', [angleo,angleu], {strokeWidth:1, strokeColor:'black', highlight:false, showInfoBox:false, visible:true, size:2});\n"
+"kulmaa[0]= JSXBoard_b .create('glider', [6, 5,anglec],{name:'a',showInfoBox:false,snapWidth: 0.01});\n"
+"kulma[0]= JSXBoard_b .create('angle', [angleu,angleo,kulmaa[0]],{visible:false});\n"
+"JSXBoard_b .create('text', [angleo.X(),angleo.Y()-2, function() { return 'α_0'+'='+JXG.toFixed(kulma[0].Value(), 2); }]);\n";