In the file U0370.pdf, describing Unicode 3.2, I find the following 03C6 GREEK SMALL LETTER PHI . the ordinary Greek letter, showing considerable glyph variation . in mathematical contexts, the loopy glyph is preferred, to contrast with 03D5
03D5 GREEK PHI SYMBOL . used as a technical symbol, with a stroked glyph . maps to "phi1" symbol entities Looking into Adobe's `Symbol' font (version 001.007, coming with Acrobat Reader 4), I see exactly the opposite: `phi1' is the loopy glyph, and `phi' is the stroked variant. Either the Unicode charts are incorrect or `phi1' doesn't denote an Adobe Glyph name or the Symbol font is wrong or ... Please clarify. Werner