// Coordinates System :
SetCoords(656,352,40);


// Geometry :
scarr=Expression("scarr","","","","x*(x+1)*(2x+1)/6","-9.9","7.3");
E1=Expression("E1","","","","x^2","-15.15","7.3");
n=Expression("n","","250","500","386","-10.4","2.3");
E5=Expression("E5","scarr(100) = ","","","scarr(100)","-7.4","3.55");
E2=Expression("E2","","","","var s=0; for (var i=0;i<=x;i++){s=s+E1(i)};0x+s","-15.9","5.3");
E3=Expression("E3","E2(100) = ","","","E2(100)","-15.4","3.55");
E6=Expression("E6","E2(n) = ","","","E2(n)","-15.4","-0.45");
E7=Expression("E7","scarr(n) = ","","","scarr(n)","-8.15","-0.45");


// Styles :
STL(scarr,"c:#b40000;s:7;sn:true;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(E1,"c:#0000b2;s:7;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(n,"c:#251607;s:7;sn:true;f:18;p:4;i:1;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMDtpOjE=");
STL(E5,"c:#b40000;s:7;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(E2,"c:#007c00;s:7;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(E3,"c:#007c00;s:7;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(E6,"c:#007c00;s:7;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
STL(E7,"c:#b40000;s:7;f:18;p:4;cL:200;cPT:YzojNzgwMDEzO3M6MTA7ZjozMA==");
SetCoordsStyle("isAxis:false;isGrid:true;isOx:true;isOy:true;isLockOx:false;isLockOy:false;centerZoom:false;color:#111111;fontSize:18;axisWidth:1;gridWidth:0.1");