How do you create a calculator on pascal?

Answer 1

:= is pascal for assignment

so :

n:= 1+2 ;

n is 3

pascal dont like mixed modes

x:= 1.0 + 2.0 ;

x is 3.0

; semicolon is very necessary it separates statements

procedure calc;

var x,y,z :real;

begin

x:= 1.0 ; y:= 2.0 ; z := x+y ; writeln(z);

end;

end.