Character Entities for HTML, CSS and Javascript
Mathematical Operators
∀
∀
∀
for all
u+2200 ISOtech
\2200
\u2200
∂
∂
∂
partial differential
u+2202 ISOtech
\2202
\u2202
∃
∃
∃
there exists
u+2203 ISOtech
\2203
\u2203
∅
∅
∅
empty set, a.k.a. null set, a.k.a. diameter
u+2205 ISOamso
\2205
\u2205
∇
∇
∇
nabla, a.k.a. backward difference
u+2207 ISOtech
\2207
\u2207
∈
∈
∈
element of
u+2208 ISOtech
\2208
\u2208
∉
∉
∉
not an element of
u+2209 ISOtech
\2209
\u2209
∋
∋
∋
contains as member
u+220B ISOtech
\220B
\u220b
∏
∏
∏
n-ary product, a.k.a. product sign
u+220F ISOamsb
\220F
\u03a0
∑
∑
∑
n-ary sumation
u+2211 ISOamsb
\2211
\u03a3
−
−
−
minus sign
u+2212 ISOtech
\2212
\u2212
∗
∗
∗
asterisk operator
u+2217 ISOtech
\2217
\u2217
√
√
√
square root, a.k.a. radical sign
u+221A ISOtech
\221A
\u221a
∝
∝
∝
proportional to
u+221D ISOtech
\221D
\u221d
∞
∞
∞
infinity
u+221E ISOtech
\221E
\u221e
∠
∠
∠
angle
u+2220 ISOamso
\2220
\u2220
∧
∧
∧
logical and (wedge)
u+2227 ISOtech
\2227
\u2227
∨
∨
∨
logical or (vee)
u+2228 ISOtech
\2228
\u2228
∩
∩
∩
intersection, a.k.a. cap
u+2229 ISOtech
\2229
\u2229
∪
∪
∪
union, a.k.a. cup
u+222A ISOtech
\222A
\u222a
∫
∫
∫
integral
u+222B ISOtech
\222B
\u222b
∴
∴
∴
therefore
u+2234 ISOtech
\2234
\u2234
∼
∼
∼
tilde
u+223C ISOtech
\223C
\u223c
≅
≅
≅
approximately equal to
u+2245 ISOtech
\2245
\u2245
≈
≈
≈
almost equal to, a.k.a. asymptotic to
u+2248 ISOamsr
\2248
\u2248
≠
≠
≠
not equal to
u+2260 ISOtech
\2260
\u2260
≡
≡
≡
identical to
u+2261 ISOtech
\2261
\u2261
≤
≤
≤
less-than or equal to
u+2264 ISOtech
\2264
\u2264
≥
≥
≥
greater-than or equal to
u+2265 ISOtech
\2265
\u2265
⊂
⊂
⊂
subset of
u+2282 ISOtech
\2282
\u2282
⊃
⊃
⊃
superset of
u+2283 ISOtech
\2283
\u2283
⊄
⊄
⊄
not a subset of
u+2284 ISOamsn
\2284
\u2284
⊆
⊆
⊆
subset of or equal to
u+2286 ISOtech
\2286
\u2286
⊇
⊇
⊇
superset of or equal to
u+2287 ISOtech
\2287
\u2287
⊕
⊕
⊕
circled plus, a.k.a. direct sum
u+2295 ISOamsb
\2295
\u2295
⊗
⊗
⊗
circled times, a.k.a. vector product
u+2297 ISOamsb
\2297
\u2297
⊥
⊥
⊥
up tack
u+22A5 ISOtech
\22A5
\u22a5
⋅
⋅
⋅
dot operator
u+22C5 ISOamsb
\22C5
\u22c5
