program determinan;
uses wincrt;
var A : array[1..2,1..2] of integer;
j,k,D : integer;
begin
For j:=1 to 2 do
begin
write('Entrikan baris ',j,' matriks A : ');
readln(A[j,1] , A[j,2]);
end;
For j:=1 to 2 do
begin
For k:=1 to 2 do write(A[j,k] : 5);
writeln;
end;
writeln;writeln;writeln;
D := A[1,1]*A[2,2] - A[1,2]*A[2,1];
writeln('Det(A) = ',D);
end.
program deret;
uses wincrt;
var n,d:integer ;
begin
d:=2;
for n:=2 to 6 do
begin
write (d, ' ');
d:=d+2
end;
end.
Program pengulangan_angka_dari_1_sampai_13;
uses wincrt;
var
i:integer;
hasil : integer;
begin
i:=2;
repeat
write (i, ' ');
i:= i+2;
until i>10;
end.
program deret;
uses wincrt;
var
i: integer ;
begin
i:=2;
while i<=10 do
begin
write (i, ' ');
i:=i+2;
end;
end.
program aa ;
uses wincrt;
var i: integer;
begin
i:=2;
write (i) ;
repeat;
write (' ');
i:=i+2;
write (i);
until i=10;
end.
Program invers;
uses wincrt;
label hitung;
var
mat,adj : array [1..5,1..5] of integer;
det,i,j : integer;
c:char;
begin
clrscr;
{ tampilan awal keterangan matrik }
gotoxy(20,4);
writeln('Matriks Ordo 2 x 2');
gotoxy(15,5);
writeln('-------------------------');
gotoxy(15,7);
writeln('1. Input data matrik ');
gotoxy(15,8);
writeln('2. Menentukan Adjoin Matrik');
gotoxy(15,9);
writeln('3. Mencari determinan matriks');
gotoxy(15,10);
writeln('4. Mencari Invers matriks');
readln;
if c = #13 then goto hitung;
{end tampilan awal keterangan matrik}
{mulai proses input}
hitung:
begin
clrscr;
writeln('Input Matrik Ordo 2x2');
writeln('-------------------------');
for i := 1 to 2 do begin
for j:= 1 to 2 do begin
write('matrik ke ',i,' ',j,': ');readln(mat[i,j]);
end;
writeln;
end;
for i := 1 to 2 do begin
write('|');
for j := 1 to 2 do begin
write(' ',mat[i,j],' ');
if j = 2 then write ('|');
end;
writeln;
end;
{end proses input matrik}
writeln;
writeln;
{mulai adjoin matrik dan determinan}
writeln('Adjoin matrik Ordo 2x2');
writeln('-----------------------');
adj[1,1] := mat[2,2];
adj[1,2] := mat[1,2] * -1;
adj[2,1] := mat[2,1] * -1;
adj[2,2] := mat[1,1];
for i := 1 to 2 do begin
write('|');
for j := 1 to 2 do begin
write(' ',adj[i,j],' ');
if j = 2 then write('|');
end;
writeln;
end;
writeln;
det := (mat[1,1] * mat [2,2]) - (mat[1,2] * mat[2,1]);
write('Determinan dari matrik diatas adalah ');
writeln(det);
writeln;
{end of adjoin and determinan}
{mulai menghitung invers matrik}
writeln('Invers Matrik ');
writeln('----------------');
writeln;
for i := 1 to 2 do begin
write('|');
for j := 1 to 2 do begin
write(' ',adj[i,j]/det:3:2,' ');
if j = 2 then write('|');
end;
writeln;writeln;writeln;
end;
{end of hitung invers matrik}
end;
readln;
end.
12.12.2011
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