Change the following two programs in Pascal form: PROGRAM #1 – Simple Fortran Co
ID: 3732888 • Letter: C
Question
Change the following two programs in Pascal form:
PROGRAM #1 – Simple Fortran Code
PROGRAM Simple
REAL :: a, b, c, d
character (LEN=3) :: r='si'
DO WHILE ( r .EQ. 'si')
PRINT *, 'Enter variable A: '
READ(*,*) a
PRINT *, 'Enter variable B: '
READ(*,*) b
PRINT *, 'Enter variable C: '
READ(*,*) c
d = b*b - 4.0*a*c
IF (d <0.0) THEN
WRITE(*,*)'It is not real: ', d
ELSE IF (d >= 0.0) THEN
WRITE(*,*)'It is real: ', d
END IF
PRINT *, 'Do you wish to continue: '
READ(*,*) r
END DO
PRINT *, 'Program finished '
END PROGRAM Simple
---------------------------------------------------
PROGRAM #2 – Subroutine Fortran Code
Program Sub
REAL :: a, b, c,d,r1,r2
PRINT *, 'Enter variable A: '
READ(*,*) a
PRINT *, 'Enter variable B: '
READ(*,*) b
PRINT *, 'Enter variable C: '
READ(*,*) c
CALL Roots(a, b, c, d, r1, r2)
CALL Print(r1, r2, d)
END Program Sub
SUBROUTINE Roots(a, b, c, d, r1, r2)
d = b*b - 4.0*a*c
IF (d <0.0) THEN
WRITE(*,*)'Doesn’t contain real square root.'
STOP
ELSE IF (d >= 0.0) THEN
d = SQRT(d)
r1 = (-b + d)/(2.0*a)
r2= (-b - d)/(2.0*a)
END IF
RETURN
END
SUBROUTINE PRINT(r1, r2, d)
IF (r1 == r2) THEN
PRINT*,'The following square root is; ', root1
ELSE IF (r1 /= r2) THEN
PRINT*,'The square root is ', r1, ' y ', r2
END IF
PRINT*,'The discriminant is ', d
RETURN
END
Explanation / Answer
1)
BEGIN
procedure PRINT(var r1, r2, d);
procedure Roots(var a, b, c, d, r1, r2);
implementation
// PROGRAM Simple
REAL =a, b, c, d;
character (LEN:=3) :: r:='si' ;
while ( r .EQ. 'si')
write ('Enter variable A: ');
readln(F*, a);
write( 'Enter variable B: ');
readln(F*, b);
write('Enter variable C: ');
readln(F*, c);
d := b*b - 4.0*a*c;
if (d <0.0) then begin
writeln(F*,'It is not real: ', d);
end else if (d >= 0.0) then begin
writeln(F*,'It is real: ', d);
end;
end;
readln(F*, r);
end;
END
2
// PROGRAM #2 – Subroutine Fortran Code
// Program Sub
REAL :: a, b, c,d,r1,r2;
PRINT *, 'Enter variable A: ';
readln(F*, a);
PRINT *, 'Enter variable B: ';
readln(F*, b);
PRINT *, 'Enter variable C: ';
readln(F*, c);
Roots(a, b, c, d, r1, r2);
Print(r1, r2, d);
procedure Roots(var a, b, c, d, r1, r2);
begin
d := b*b - 4.0*a*c;
if (d <0.0) then begin
writeln(F*,'Doesn’t contain real square root.');
STOP;
end else if (d >= 0.0) then begin
d := SQRT(d);
r1 := (-b + d)/(2.0*a);
r2:= (-b - d)/(2.0*a);
end;
end;
procedure PRINT(var r1, r2, d);
begin
if (r1 == r2) then begin
PRINT*,'The following square root is; ', root1;
end else if (r1 <> r2) then begin
PRINT*,'The square root is ', r1, ' y ', r2;
end;
PRINT*,'The discriminant is ', d;
end;
end.
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