Dear all,
I want to manipulate, store, later retrieve, 2-dimensions matrices of
single or double ;
matrices may turn big and I wanted to turn to dynamic array of array
the basic solution below works, but storing (and retrieval) of big
matrices is VERY slow.
any hint on the good way to make things quick ?
var
fsingle : file of single;
m : array of array of single;
i,j,n:integer;
begin
n:=10000;
// I like i and j to run in 1..n, so I accept to loose line and column 0
setlength(m,1+n,1+n);
for i:=1 to n do for j:=1 to n do M[i,j]:=random;
assignfile(fsingle,'single_test.bin');
rewrite(fsingle);
for i:=1 to n do for j:=1 to n do write(fsingle,M[i,j]);
closefile(fsingle);
end;
Thank you in advance,
Etienne (Lyon, France)
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