# Re: Inverted (=reflected) N

• To: C.A.Rowley@open.ac.uk, math-font-discuss@cogs.susx.ac.uk
• Subject: Re: Inverted (=reflected) N
• From: Joerg.Knappen@uni-mainz.de
• Date: Sat, 07 Feb 1998 16:19:32 +0100

```Someone asked about canonical names for rotated and reflected glyphs.

Here is the best I could find out. It is from Pullum and Ladusaw about the
naming of ipa characters/glyphs. It is already adopted in the TeX world
(wsuipa, tipa) and also in international standards (ISO10646/UNicode).

turned: rotated 180 degrees
inverted: reflected through a horizontal midline switching top and bottom
reversed: reflected through a vertical midline switching left and right

If two operation are necessary, the sequence is like:

reversed turned ....

So the N is either inverted or reversed, but the \Qinv is better called