My computer (a mac) allows alternative symbols to be typed right from the keyboard with the option key. I'm checking to see if all browsers and all OS recognize them. And, if you have proper names for them, please let me know. Thanks.
æ joined ae as in Old English or Nordic languages
≤≥ less than or equal to and greater than or equal to
π Capital Pi
¥ Japanese yen symbol
ƒ long f for mathematical function
© copyrighted symbol
ç c with a cedilla (c with a beard as in Spanish)
® marca registrada symbol
¬ logical not sign
÷ single line divides sign
≠ not equal to sign
« much less than sign
å a with a circle on top (Nordic languages)
ø o with a line through it (Nordic languages)
ˆ caret sign
∂ partial differential operator (looks like a backwards 6
† dagger
˜ tilde
ß substitute for ss as in straße (German language) instead of strasse
– hyphen
… ellipses
œ joined oe as in Old English or Nordic languages
∆ capital delta (triangle)
˚ degree sign
≈ approximate equality sign
∫ integral sign
µ lower-case mu
∑ capital sigma
√ root sign
Ω capital omega