Robert Palais wrote,
> I'd even support the inclusion of a copyleft symbol ahead of \newpi! Has there been any consideration of practical alternatives, such as selecting a lookalike or similar character from the plethora of those already encoded and promoting its use to represent the "newpi" character? Some possibilities which come to mind are: The Greek letter(s) SAMPI, which is a PI turned sideways, comes in two flavours, capital and small. U+03E0 and U+03E1, or in UTF-8, Ϡ and ϡ. The Cyrillic letter SHA, capital and small at U+0428 (Ш) and U+0448 (ш). (Well, it probably looks too much like Roman Numeral Three at U+2162 (Ⅲ).) But, another Cyrillic letter looks like an upside-down PI with a tail, U+040F (Џ) which is Cyrillic DZHE. Remote possibilities might include Reversed pilcrow (⁋) U+204B, Peso sign at U+20B1 (₱), Double-struck capital PI at U+203F (ℿ), Element of Opening Downwards at U+2AD9 (⫙), Yi Syllable CUOP at U+A2BC (ꊼ). Or, since the "newpi" glyph could be considered as a ligature of PI and PI, perhaps the character should be formed by U+03C0 plus U+200D plus U+03C0? Best regards, James Kass.