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===============================================================================
procedure CHOBSB(A:MATRX2; N:integer; D:array of real;var B:array of real);
var
I,J:integer; SUM:real;
begin
For I:=1 To N do
begin
Sum:=B[I];
For J:=1 To I - 1 do
Sum:=Sum - A[I, J] * B[J];
B[I]:=Sum;
end;
For I:=N DownTo 1 do
begin
If D[I] = 0 Then
begin
ShowMessage('Singular Matrix');
Exit;
end
Else
Sum:=B[I] / D[I];
For J:=I + 1 To N do
Sum:=Sum - A[J, I] * B[J];
B[I]:=Sum;
end;
end;
Ϊʲô²»ÄÜд³ÉÕâÑù?
===============================================================================
procedure CHOBSB(A:MATRX2; N:integer; D:array of real;var B:array of real);
var
I,J:integer; SUM:real;
begin
For I:=1 To N do
begin
Sum:=B[I];
For J:=1 To I - 1 do
Sum:=Sum - A[I, J] * B[J];
B[I]:=Sum;
end;
For I:=N DownTo 1 do
begin
If D[I] = 0 Then
begin
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