setD method
Copies the fields of o into this instance and returns this.
Implementation
@override
MatrixD setD(MatrixD o) {
return set(
o.m0, o.m1, o.m2, o.m3,
o.m4, o.m5, o.m6, o.m7,
o.m8, o.m9, o.m10, o.m11,
o.m12, o.m13, o.m14, o.m15,
);
}