HTML Math Symols with ASCII Codes

Mnemonic	Output	Code	Output	Description
Latin Extended-B
ƒ	= ƒ	ƒ	= ƒ	latin small f with hook = function = florin, U+0192 ISOtech
Greek
Α	= Α	Α	= Α	greek capital letter alpha, U+0391
Β	= Β	Β	= Β	greek capital letter beta, U+0392
Γ	= Γ	Γ	= Γ	greek capital letter gamma, U+0393 ISOgrk3
Δ	= Δ	Δ	= Δ	greek capital letter delta, U+0394 ISOgrk3
Ε	= Ε	Ε	= Ε	greek capital letter epsilon, U+0395
Ζ	= Ζ	Ζ	= Ζ	greek capital letter zeta, U+0396
Η	= Η	Η	= Η	greek capital letter eta, U+0397
Θ	= Θ	Θ	= Θ	greek capital letter theta, U+0398 ISOgrk3
Ι	= Ι	Ι	= Ι	greek capital letter iota, U+0399
Κ	= Κ	Κ	= Κ	greek capital letter kappa, U+039A
Λ	= Λ	Λ	= Λ	greek capital letter lambda, U+039B ISOgrk3
Μ	= Μ	Μ	= Μ	greek capital letter mu, U+039C
Ν	= Ν	Ν	= Ν	greek capital letter nu, U+039D
Ξ	= Ξ	Ξ	= Ξ	greek capital letter xi, U+039E ISOgrk3
Ο	= Ο	Ο	= Ο	greek capital letter omicron, U+039F
Π	= Π	Π	= Π	greek capital letter pi, U+03A0 ISOgrk3
Ρ	= Ρ	Ρ	= Ρ	greek capital letter rho, U+03A1
there is no Sigmaf, and no U+03A2 character either
Σ	= Σ	Σ	= Σ	greek capital letter sigma, U+03A3 ISOgrk3
Τ	= Τ	Τ	= Τ	greek capital letter tau, U+03A4
Υ	= Υ	Υ	= Υ	greek capital letter upsilon, U+03A5 ISOgrk3
Φ	= Φ	Φ	= Φ	greek capital letter phi, U+03A6 ISOgrk3
Χ	= Χ	Χ	= Χ	greek capital letter chi, U+03A7
Ψ	= Ψ	Ψ	= Ψ	greek capital letter psi, U+03A8 ISOgrk3
Ω	= Ω	Ω	= Ω	greek capital letter omega, U+03A9 ISOgrk3
α	= α	α	= α	greek small letter alpha, U+03B1 ISOgrk3
β	= β	β	= β	greek small letter beta, U+03B2 ISOgrk3
γ	= γ	γ	= γ	greek small letter gamma, U+03B3 ISOgrk3
δ	= δ	δ	= δ	greek small letter delta, U+03B4 ISOgrk3
ε	= ε	ε	= ε	greek small letter epsilon, U+03B5 ISOgrk3
ζ	= ζ	ζ	= ζ	greek small letter zeta, U+03B6 ISOgrk3
η	= η	η	= η	greek small letter eta, U+03B7 ISOgrk3
θ	= θ	θ	= θ	greek small letter theta, U+03B8 ISOgrk3
ι	= ι	ι	= ι	greek small letter iota, U+03B9 ISOgrk3
κ	= κ	κ	= κ	greek small letter kappa, U+03BA ISOgrk3
λ	= λ	λ	= λ	greek small letter lambda, U+03BB ISOgrk3
μ	= μ	μ	= μ	greek small letter mu, U+03BC ISOgrk3
ν	= ν	ν	= ν	greek small letter nu, U+03BD ISOgrk3
ξ	= ξ	ξ	= ξ	greek small letter xi, U+03BE ISOgrk3
ο	= ο	ο	= ο	greek small letter omicron, U+03BF NEW
π	= π	π	= π	greek small letter pi, U+03C0 ISOgrk3
ρ	= ρ	ρ	= ρ	greek small letter rho, U+03C1 ISOgrk3
ς	= ς	ς	= ς	greek small letter final sigma, U+03C2 ISOgrk3
σ	= σ	σ	= σ	greek small letter sigma, U+03C3 ISOgrk3
τ	= τ	τ	= τ	greek small letter tau, U+03C4 ISOgrk3
υ	= υ	υ	= υ	greek small letter upsilon, U+03C5 ISOgrk3
φ	= φ	φ	= φ	greek small letter phi, U+03C6 ISOgrk3
χ	= χ	χ	= χ	greek small letter chi, U+03C7 ISOgrk3
ψ	= ψ	ψ	= ψ	greek small letter psi, U+03C8 ISOgrk3
ω	= ω	ω	= ω	greek small letter omega, U+03C9 ISOgrk3
ϑ	= ϑ	ϑ	= ϑ	greek small letter theta symbol, U+03D1 NEW
ϒ	= ϒ	ϒ	= ϒ	greek upsilon with hook symbol, U+03D2 NEW
ϖ	= ϖ	ϖ	= ϖ	greek pi symbol, U+03D6 ISOgrk3
General Punctuation
•	= •	•	= •	bullet = black small circle, U+2022 ISOpub
bullet is NOT the same as bullet operator, U+2219
…	= …	…	= …	horizontal ellipsis = three dot leader, U+2026 ISOpub
′	= ′	′	= ′	prime = minutes = feet, U+2032 ISOtech
″	= ″	″	= ″	double prime = seconds = inches, U+2033 ISOtech
‾	= ‾	‾	= ‾	overline = spacing overscore, U+203E NEW
⁄	= ⁄	⁄	= ⁄	fraction slash, U+2044 NEW
Letterlike Symbols
℘	= ℘	℘	= ℘	script capital P = power set = Weierstrass p, U+2118 ISOamso
ℑ	= ℑ	ℑ	= ℑ	blackletter capital I = imaginary part, U+2111 ISOamso
ℜ	= ℜ	ℜ	= ℜ	blackletter capital R = real part symbol, U+211C ISOamso
™	= ™	™	= ™	trade mark sign, U+2122 ISOnum
ℵ	= ℵ	ℵ	= ℵ	alef symbol = first transfinite cardinal, U+2135 NEW
alef symbol is NOT the same as hebrew letter alef, U+05D0 although the same glyph could be used to depict both characters
Arrows
←	= ←	←	= ←	leftwards arrow, U+2190 ISOnum
→	= →	→	= →	rightwards arrow, U+2192 ISOnum
↓	= ↓	↓	= ↓	downwards arrow, U+2193 ISOnum
↔	= ↔	↔	= ↔	left right arrow, U+2194 ISOamsa
↵	= ↵	↵	= ↵	downwards arrow with corner leftwards = carriage return, U+21B5 NEW
⇐	= ⇐	⇐	= ⇐	leftwards double arrow, U+21D0 ISOtech
Unicode does not say that lArr is the same as the 'is implied by' arrow but also does not have any other character for that function. So ? lArr can be used for 'is implied by' as ISOtech suggests
⇑	= ⇑	⇑	= ⇑	upwards double arrow, U+21D1 ISOamsa
⇒	= ⇒	⇒	= ⇒	rightwards double arrow, U+21D2 ISOtech
Unicode does not say this is the 'implies' character but does not have another character with this function so ? rArr can be used for 'implies' as ISOtech suggests
⇓	= ⇓	⇓	= ⇓	downwards double arrow, U+21D3 ISOamsa
⇔	= ⇔	⇔	= ⇔	left right double arrow, U+21D4 ISOamsa
Mathematical Operators
∀	= ∀	∀	= ∀	for all, U+2200 ISOtech
∂	= ∂	∂	= ∂	partial differential, U+2202 ISOtech
∃	= ∃	∃	= ∃	there exists, U+2203 ISOtech
∅	= ∅	∅	= ∅	empty set = null set = diameter, U+2205 ISOamso
∇	= ∇	∇	= ∇	nabla = backward difference, U+2207 ISOtech
∈	= ∈	∈	= ∈	element of, U+2208 ISOtech
∉	= ∉	∉	= ∉	not an element of, U+2209 ISOtech
∋	= ∋	∋	= ∋	contains as member, U+220B ISOtech
should there be a more memorable name than 'ni'?
∏	= ∏	∏	= ∏	n-ary product = product sign, U+220F ISOamsb
prod is NOT the same character as U+03A0 'greek capital letter pi' though the same glyph might be used for both
∑	= ∑	∑	= ∑	n-ary sumation, U+2211 ISOamsb
sum is NOT the same character as U+03A3 'greek capital letter sigma' though the same glyph might be used for both
−	= −	−	= −	minus sign, U+2212 ISOtech
∗	= ∗	∗	= ∗	asterisk operator, U+2217 ISOtech
√	= √	√	= √	square root = radical sign, U+221A ISOtech
∝	= ∝	∝	= ∝	proportional to, U+221D ISOtech
∞	= ∞	∞	= ∞	infinity, U+221E ISOtech
∠	= ∠	∠	= ∠	angle, U+2220 ISOamso
∧	= ∧	∧	= ∧	logical and = wedge, U+2227 ISOtech
∨	= ∨	∨	= ∨	logical or = vee, U+2228 ISOtech
∩	= ∩	∩	= ∩	intersection = cap, U+2229 ISOtech
∪	= ∪	∪	= ∪	union = cup, U+222A ISOtech
∫	= ∫	∫	= ∫	integral, U+222B ISOtech
∴	= ∴	∴	= ∴	therefore, U+2234 ISOtech
∼	= ∼	∼	= ∼	tilde operator = varies with = similar to, U+223C ISOtech
tilde operator is NOT the same character as the tilde, U+007E, although the same glyph might be used to represent both
≅	= ≅	≅	= ≅	approximately equal to, U+2245 ISOtech
≈	= ≈	≈	= ≈	almost equal to = asymptotic to, U+2248 ISOamsr
≠	= ≠	≠	= ≠	not equal to, U+2260 ISOtech
≡	= ≡	≡	= ≡	identical to, U+2261 ISOtech
≤	= ≤	≤	= ≤	less-than or equal to, U+2264 ISOtech
≥	= ≥	≥	= ≥	greater-than or equal to, U+2265 ISOtech
⊂	= ⊂	⊂	= ⊂	subset of, U+2282 ISOtech
⊃	= ⊃	⊃	= ⊃	superset of, U+2283 ISOtech
⊄	= ⊄	⊄	= ⊄	not a subset of, U+2284 ISOamsn
⊆	= ⊆	⊆	= ⊆	subset of or equal to, U+2286 ISOtech
⊇	= ⊇	⊇	= ⊇	superset of or equal to, U+2287 ISOtech
⊕	= ⊕	⊕	= ⊕	circled plus = direct sum, U+2295 ISOamsb
⊗	= ⊗	⊗	= ⊗	circled times = vector product, U+2297 ISOamsb
⊥	= ⊥	⊥	= ⊥	up tack = orthogonal to = perpendicular, U+22A5 ISOtech
⋅	= ⋅	⋅	= ⋅	dot operator, U+22C5 ISOamsb
dot operator is NOT the same character as U+00B7 middle dot
Miscellaneous Technical
⌈	= ⌈	⌈	= ⌈	left ceiling = apl upstile, U+2308 ISOamsc
⌉	= ⌉	⌉	= ⌉	right ceiling, U+2309 ISOamsc
⌊	= ⌊	⌊	= ⌊	left floor = apl downstile, U+230A ISOamsc
⌋	= ⌋	⌋	= ⌋	right floor, U+230B ISOamsc
⟨	= ⟨	〈	= ⟨	left-pointing angle bracket = bra, U+2329 ISOtech
lang is NOT the same character as U+003C 'less than' or U+2039 'single left-pointing angle quotation mark'
⟩	= ⟩	〉	= ⟩	right-pointing angle bracket = ket, U+232A ISOtech
rang is NOT the same character as U+003E 'greater than' or U+203A 'single right-pointing angle quotation mark'
Geometric Shapes
◊	= ◊	◊	= ◊	lozenge, U+25CA ISOpub
Miscellaneous Symbols
♠	= ♠	♠	= ♠	black spade suit, U+2660 ISOpub
black here seems to mean filled as opposed to hollow
♣	= ♣	♣	= ♣	black club suit = shamrock, U+2663 ISOpub
♥	= ♥	♥	= ♥	black heart suit = valentine, U+2665 ISOpub
♦	= ♦	♦	= ♦	black diamond suit, U+2666 ISOpub