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program invgpdex;
uses
typ, iom, inv;
const
n = 4;
var
i, j, term: ArbInt;
A: array[1..n, 1..n] of ArbFloat;
begin
Assign(input, ParamStr(1));
reset(input);
Assign(output, ParamStr(2));
rewrite(output);
writeln('program results invgpdex');
{ read bottomleft part of matrix A}
for i := 1 to n do
iomrev(input, A[i, 1], i);
{ Print matrix A}
writeln;
writeln('A =');
for i := 1 to n do
for j := 1 to i - 1 do
A[j, i] := A[i, j];
iomwrm(output, A[1, 1], n, n, n, numdig);
{ Calculate inverse of matrix A}
invgpd(n, n, A[1, 1], term);
writeln;
writeln('term=', term: 2);
if term = 1 then
{ Print inverse of matrix A}
begin
writeln;
writeln('inverse of A =');
iomwrm(output, A[1, 1], n, n, n, numdig);
end; {term=1}
Close(input);
Close(output);
end.
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