54     r->x = p->x + q->x;  in C_QUATAdd()
128     r->x = p->x - q->x;  in C_QUATSubtract()
216     r->w = p->w*q->w - p->x*q->x - p->y*q->y - p->z*q->z;  in C_QUATMultiply()
217     r->x = p->w*q->x + p->x*q->w + p->y*q->z - p->z*q->y;  in C_QUATMultiply()
218     r->y = p->w*q->y + p->y*q->w + p->z*q->x - p->x*q->z;  in C_QUATMultiply()
219     r->z = p->w*q->z + p->z*q->w + p->x*q->y - p->y*q->x;  in C_QUATMultiply()
361     r->x = q->x * scale;  in C_QUATScale()
425     return (q->x*p->x + q->y*p->y + q->z*p->z + q->w*p->w);  in C_QUATDotProduct()
492     mag = (src->x * src->x) + (src->y * src->y) + (src->z * src->z) + (src->w * src->w);  in C_QUATNormalize()
498         unit->x = src->x * mag;  in C_QUATNormalize()
505         unit->x = unit->y = unit->z = unit->w = 0.0F;  in C_QUATNormalize()
611     mag = ( src->x*src->x + src->y*src->y + src->z*src->z + src->w*src->w );  in C_QUATInverse()
620     inv->x = -src->x * norminv;  in C_QUATInverse()
782     theta = sqrtf( q->x*q->x + q->y*q->y + q->z*q->z );  in C_QUATExp()
788     r->x = scale * q->x;  in C_QUATExp()
812     scale = q->x*q->x + q->y*q->y + q->z*q->z;  in C_QUATLogN()
832     r->x = scale*q->x;  in C_QUATLogN()
859     dot =  q->x*qto->x + q->y*qto->y + q->z*qto->z + q->w*qto->w;  in C_QUATMakeClosest()
863         r->x = -q->x;  in C_QUATMakeClosest()
900     r->x = sh * nAxis.x;  in C_QUATRotAxisRad()
933         r->x = (m[2][1] - m[1][2]) * s;  in C_QUATMtx()
954         r->x = q[0];  in C_QUATMtx()
979     r->x = t * ( q->x - p->x ) + p->x;  in C_QUATLerp()
1006     cos_th = p->x * q->x + p->y * q->y + p->z * q->z + p->w * q->w;  in C_QUATSlerp()
1029     r->x = tp * p->x + tq * q->x;  in C_QUATSlerp()
1131     ASSERTMSG( ( q->x || q->y || q->z || q->w ), MTX_QUAT_3     );  in C_MTXQuat()
1133     s = 2.0f / ( (q->x * q->x) + (q->y * q->y) + (q->z * q->z) + (q->w * q->w) );  in C_MTXQuat()
1135     xs = q->x *  s;     ys = q->y *  s;  zs = q->z *  s;  in C_MTXQuat()
1137     xx = q->x * xs;     xy = q->x * ys;  xz = q->x * zs;  in C_MTXQuat()