Dfx, y, z, w:
Derivative1, 0, 0, 0f1x, y, z, w, Derivative0, 1, 0, 0f1x, y, z, w,
Derivative0, 0, 1, 0f1x, y, z, w, Derivative0, 0, 0, 1f1x, y, z, w,
Derivative1, 0, 0, 0f2x, y, z, w, Derivative0, 1, 0, 0f2x, y, z, w,
Derivative0, 0, 1, 0f2x, y, z, w, Derivative0, 0, 0, 1f2x, y, z, w,
Derivative1, 0, 0, 0f3x, y, z, w, Derivative0, 1, 0, 0f3x, y, z, w,
Derivative0, 0, 1, 0f3x, y, z, w, Derivative0, 0, 0, 1f3x, y, z, w,
Derivative1, 0, 0, 0f4x, y, z, w, Derivative0, 1, 0, 0f4x, y, z, w,
Derivative0, 0, 1, 0f4x, y, z, w, Derivative0, 0, 0, 1f4x, y, z, w