Repository URL to install this package:
Version:
3.2.0 ▾
|
program eigge3te;
uses
typ,
iom,
eig;
const
m1 = -9;
m2 = 5;
m3 = -11;
m4 = 8;
n1 = -10;
n2 = 8;
n3 = -9;
n4 = 7;
rwa = n2 - n1 + 1;
rwx = n4 - n3 + 1;
var
i, j, l, nex, n, term, i1, j1, i2, j2, k: ArbInt;
r: ArbFloat;
a: array[m1..m2, n1..n2] of ArbFloat;
x: array[m3..m4, n3..n4] of complex;
lam: array[m1..m2] of complex;
begin
Write(' program results eigge3te');
case sizeof(ArbFloat) of
4: writeln('(single)');
6: writeln('(real)');
8: writeln('(double)');
end;
Read(nex);
writeln;
writeln('number of examples', nex: 2);
writeln;
for l := 1 to nex do
begin
writeln('example number', l: 2);
writeln;
Read(i1, j1, i2, j2, n);
iomrem(input, a[i1, j1], n, n, rwa);
eigge3(a[i1, j1], n, rwa, lam[i1], x[i2, j2], rwx, term);
writeln;
writeln('A=');
writeln;
iomwrm(output, a[i1, j1], n, n, rwa, numdig);
writeln;
writeln('term=', term: 2);
writeln;
if term = 1 then
begin
writeln('lambda=');
writeln(' ': 10, 'Re', ' ': 10, 'Im');
for i := 1 to n do
writeln(lam[i1 + i - 1].re: numdig, ' ', lam[i1 + i - 1].im: numdig);
writeln;
writeln('eigenvectors:');
for j := 1 to n do
begin
writeln('eig. vect. nr', j: 2);
writeln(' ': 10, 'Re', ' ': 10, 'Im');
for i := 1 to n do
begin
Write(x[i2 + i - 1, j2 + j - 1].re: numdig, ' ');
writeln(x[i2 + i - 1, j2 + j - 1].im: numdig);
end; {i}
writeln;
end; {j}
writeln('residuals:');
for j := 1 to n do
begin
writeln('residual nr', j: 2);
writeln(' ': 10, 'Re', ' ': 10, 'Im');
for i := 1 to n do
begin
r := 0;
for k := 1 to n do
r := r + a[i1 + i - 1, j1 + k - 1] * x[i2 + k - 1, j2 + j - 1].re;
r := r - lam[i1 + j - 1].re * x[i2 + i - 1, j2 + j - 1].re;
r := r + lam[i1 + j - 1].im * x[i2 + i - 1, j2 + j - 1].im;
Write(r: numdig, ' ');
r := 0;
for k := 1 to n do
r := r + a[i1 + i - 1, j1 + k - 1] * x[i2 + k - 1, j2 + j - 1].im;
r := r - lam[i1 + j - 1].re * x[i2 + i - 1, j2 + j - 1].im;
r := r - lam[i1 + j - 1].im * x[i2 + i - 1, j2 + j - 1].re;
writeln(r: numdig);
end; {i}
writeln;
end; {j}
end; {term=1}
writeln('-------------------------------------------');
end; {l}
Close(input);
Close(output);
end.