var integer function real real begin if then if then Exp -2 end var de

var x,y:integer;
function f(x,a:real):real;
begin
  if x <= a then
      f := 1 / (x*x + a*a);
  if x > a then
      f := Exp(-2*x*x+a*a);
  
end;
 var delta, startPoint, endPoint, currentPoint : real;
begin
 startPoint := 0;
 endPoint := 3;
 delta := 0.2;
 currentPoint := startPoint;
 while currentPoint <= endPoint do begin
     writeln('X: ', currentPoint, ' Fx = ', f(currentPoint, 1.4));
     currentPoint := currentPoint + delta;
 end;
 writeln('summa= ',f(2,1));
end.