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INTMATH.MOD
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1989-01-18
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(* Chapter 3 - Program 2 *)
MODULE IntMath;
FROM InOut IMPORT WriteLn, WriteString, WriteInt;
VAR IntSum, IntDif, IntMul, IntDiv, IntRem : INTEGER;
A, B : INTEGER;
BEGIN
A := 9; (* Simple assignment *)
B := A + 4; (* Addition *)
IntSum := A + B; (* Addition *)
IntDif := A - B; (* Subtraction *)
IntMul := A * B; (* Multiplication *)
IntDiv := B DIV A; (* Integer division, the result is a
truncated integer number. *)
IntRem := B MOD A; (* d is the remainder of the integer
division. *)
A := (A + B) DIV (3*B + 7); (* Composite math statement *)
WriteString("The integer values are ");
WriteInt(IntSum,6);
WriteInt(IntDif,6);
WriteInt(IntMul,6);
WriteInt(IntDiv,6);
WriteInt(IntRem,6);
WriteLn;
INC(A); (* This increments the value of A *)
DEC(A); (* This decrements the value of A *)
INC(A,3); (* This adds 3 to the value of A *)
DEC(A,7); (* This reduces the value of A by 7 *)
INC(A,B*2+4); (* A composite incrementing amount *)
A := MIN(INTEGER); (* This produces the smallest INTEGER *)
B := MAX(INTEGER); (* This produces the largest INTEGER *)
END IntMath.
(* Result of execution
The integer values are 22 -4 117 1 4
*)