sub method
Subtract o
from this.
Implementation
void sub(Matrix3 o) {
final oStorage = o._m3storage;
_m3storage[0] = _m3storage[0] - oStorage[0];
_m3storage[1] = _m3storage[1] - oStorage[1];
_m3storage[2] = _m3storage[2] - oStorage[2];
_m3storage[3] = _m3storage[3] - oStorage[3];
_m3storage[4] = _m3storage[4] - oStorage[4];
_m3storage[5] = _m3storage[5] - oStorage[5];
_m3storage[6] = _m3storage[6] - oStorage[6];
_m3storage[7] = _m3storage[7] - oStorage[7];
_m3storage[8] = _m3storage[8] - oStorage[8];
}