A transformation matrix of dimension n×m operates on a column vector of dimension m×1 to produce a row vector of dimension 1×n.

She made the worst speller lie down on the floor, the next worst on top of him, and so pig-piled the whole class, dressing off the upper one with a shingle.

So homonymphobia should extend to experienced writers using sophisticated language. I remember the day I used the word discrete (distinct) when I meant discreet (prudent).

Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.