Y=

Question

Y=0}} \right. " alt=" \left \{ {{ x^{2} } ,\atop { \sqrt{x} }}, \right {{x \leq 0} \atop {x>0}} \right. " align="absmiddle" class="latex-formula">

Answer 1

var
  x, y: real;
begin
  readln(x);
  if (x <= 0) then<br>    y := sqr(x)
  else
    y := sqrt(x);
  writeln(y);
end.