|
|
Prev | Next | transpose |
| Matlab or Octave |
= x'
|
| C++ |
= trans(x)
|
= x'
sets y to the @(@
n \times m
@)@ matrix with
@[@
y_{j,i} = x_{i,j}
@]@
function [ok] = transpose_ok()
ok = true;
m = 2;
n = 3;
x = rand(m, n);
% -------
y = x';
% -------
[r, c] = size(y);
ok = ok & (r == n);
ok = ok & (c == m);
for i = 1 : m
for j = 1 : n
ok = ok & (y(j, i) == x(i, j));
end
end
return
= trans(x)
where x and y are
ublas matrix<double> objects with sizes
@(@
m \times n
@)@ and @(@
n \times m
@)@ respectively.
# include <mat2cpp.hpp>
bool transpose_ok(void)
{ bool ok = true;
using namespace mat2cpp;
size_t i, j, m(2), n(3);
matrix<double> x = rand(m, n);
// -------------------------
matrix<double> y = trans(x);
// -------------------------
ok &= (y.size1() == n);
ok &= (y.size2() == m);
for(i = 0; i < m; i++)
{ for(j = 0; j < n; j++)
ok &= y(j,i) == x(i,j);
}
return ok;
}