program sum;
{$APPTYPE CONSOLE}
uses SysUtils, Math;
var x: real;
begin
    write('Please Enter x: ');
    readln(x);
    writeln('exp(x) =', exp(x):8:3);
    writeln('Ln(x) =', Ln(x):8:3);
    writeln('sqrt(x) =', sqrt(x):8:3);
    writeln('ArcCos(x) =', ArcCos(x):8:3);
    writeln('ArcSin(x) =', ArcSin(x):8:3);
    writeln('ArcTan(x) =', ArcTan(x):8:3);
    writeln('cos(x) =', cos(x):8:3);
    writeln('sin(x) =', sin(x):8:3);
    writeln('tan(x) =', tan(x):8:3);
    writeln('abs(x) =', abs(x):8:3);
    readln
end.