275     double vx = vector.x();  in scale()  local
279         m[0][0] = vx;  in scale()
283         m[0][0] *= vx;  in scale()
287         m[0][0] *= vx;  in scale()
288         m[0][1] *= vx;  in scale()
293         m[0][0] *= vx;  in scale()
294         m[0][1] *= vx;  in scale()
295         m[0][2] *= vx;  in scale()
296         m[0][3] *= vx;  in scale()
403     double vx = vector.x();  in translate()  local
407         m[3][0] = vx;  in translate()
411         m[3][0] += vx;  in translate()
415         m[3][0] = m[0][0] * vx;  in translate()
419         m[3][0] += m[0][0] * vx;  in translate()
423         m[3][0] += m[0][0] * vx + m[1][0] * vy;  in translate()
424         m[3][1] += m[0][1] * vx + m[1][1] * vy;  in translate()
427         m[3][0] += m[0][0] * vx + m[1][0] * vy + m[2][0] * vz;  in translate()
428         m[3][1] += m[0][1] * vx + m[1][1] * vy + m[2][1] * vz;  in translate()
429         m[3][2] += m[0][2] * vx + m[1][2] * vy + m[2][2] * vz;  in translate()
430         m[3][3] += m[0][3] * vx + m[1][3] * vy + m[2][3] * vz;  in translate()