=3.1416Answer

=3.1416VALUE

Speed*Distance Answer

Speed*Distance VARIABLE

A + B = CAnswer

A + B = CVARIABLE

Weight = 3024 g

Answer

Weight = 3024 g

VALUE

Time = T + D Answer

Time = T + D VARIABLE

S*D = (5*5.2)Answer

S*D = (5*5.2)VALUE

WHAT IS VALUE PARAMETERS?

Value Parameters can be used to supply

information to a procedure, but not out

from it.

Procedure Vehicle (var Time, Distance: real);Var speed:real;Begin

speed := Time*Distance;writeln(‘The speed is:’,

Speed:6:2);End;

WHAT IS VARIABLE PARAMETERS?

The Variable Parameters can be used to bring information into the

procedure and/or pass information from out of

the procedure.

Procedure Vehicle2 (Time, Distance: real);Var speed:real;Begin

speed := Time*Distance;writeln(‘The speed is:’,

Speed:6:2);End;

BeginClrscr;Vehicle2(5,5.5);Readln;End.

SAMPLE PROGRAMProgram Subprograms;Uses crt;Var T, D : real;Procedure Vehicle (var Time, Distance: real);Var Speed: real;Begin

Speed := Time*Distance;writeln (‘the speed is:’ ,

speed:6:2);End;Procedure Vehicle2 (Time, Distance: real);Var Speed: real;Begin

Speed := Time*Distance;writeln (‘the speed is:’ ,

speed:6:2);End;

BeginClrscr;T:=5;D:=5.5;Vehicle (T,D);Vehicle2 (5,5.5);Vehicle2 (T+5,5.5*2);Vehicle2(T,D);Readln;End.