Yes the first statement is correct. You can even simplify it to:
levyhorni = In.topLeftCorner(h/2,w/2);
Frage
when i would like to use block()
with MatrixXcd
In and levyhorni
:
levyhorni=In.block(0,0,h/2,w/2);
is correct or for every part of complex is correct?
levyhorni.real()=In.real().block(0,0,h/2,w/2);
and same for .imag();
Lösung
Yes the first statement is correct. You can even simplify it to:
levyhorni = In.topLeftCorner(h/2,w/2);