I just noticed that the Unicode character set contains an entire block (256 characters) of math symbols. I've got no idea how some of them should be used. For example:
- U+22DA (⋚) and U+22DB (⋛): less-than-equal-to-or-greater-than, and greater-than-equal-to-or-less-than. Why not just use the good old equals sign = ?
- U+2295 through U+2298 (⊕⊖⊗⊘): circled + − × ⁄ symbols
- U+2235 (∿): sine wave; why do we need a character for this? does anyone use this?
- U+2268 (≨): less-than-but-not-equal-to; isn't this redundant? if
x < ythen isn't it always true the
x ≠ y?
I got these from here (you can click "more").