Program Menghitung Matrik

program matrik_kali;
uses wincrt;
var a,b,c: array[1..10,1..10] of real;
    i,j,k,baris1,kolom1,baris2,kolom2:integer;

begin
writeln('ukuran matrik A ');
read(baris1,kolom1);
write('masukan nilai matrik');
for i:=1 to baris1 do
  for j:=1 to kolom1 do
    read(a[i,j]);

write('ukuran matrik B ');
read(baris2,kolom2);
writeln('masukan nilai matrik');
for i:=1 to baris2 do
  for j:=1 to kolom2 do
    read(b[i,j]);


if kolom1=baris2 then
for i:=1 to baris1 do
  for j:=1 to kolom2 do
    begin
    c[i,j]:=0;
    for k:=1 to kolom1 do
    c[i,j]:=c[i,j]+a[i,k]*b[k,j];
    end
else
write('ukuran matrix tidak sesuai syarat');

writeln('hasil perkalian');
for i:=1 to baris1 do
  begin
  for j:=1 to kolom2 do
  write(c[i,j]:0:0,' ');
  writeln
  end;
begin if (baris1=baris2) and (kolom1=kolom2) then
   begin
   for i:=1 to baris2 do
     for j:=1 to kolom2 do
       c[i,j]:= a[i,j]+b[i,j]
   end
   else
   writeln('ukuran matrik tidak sama');

writeln('hasil penjumlahan');
for i:=1 to baris1 do
   begin
   for j:=1 to kolom1 do
   write(c[i,j]:0:0,' ');
   writeln;
   end;
end;
begin if (baris1=baris2) and (kolom1=kolom2) then
   begin
   for i:=1 to baris2 do
     for j:=1 to kolom2 do
       c[i,j]:= a[i,j]-b[i,j]
   end
   else
   writeln('ukuran matrik tidak sama');

writeln('hasil pengurangan');
for i:=1 to baris1 do
   begin
   for j:=1 to kolom1 do
   write(c[i,j]:0:0,' ');
   writeln;
   end; end; end.