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HTML Characters Entities

HTML Mathematical Operators

HTML Symbol Numeric Description Hex CSS (ISO) JS (Octal)
∀ ∀ ∀ for all u+2200 ISOtech \2200 \u2200
∂ ∂ ∂ partial differential u+2202 ISOtech \2202 \u2202
∃ ∃ ∃ there exists u+2203 ISOtech \2203 \u2203
∅ ∅ ∅ empty set, aka null set, aka diameter u+2205 ISOamso \2205 \u2205
∇ ∇ ∇ nabla, aka bakad 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, aka 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, aka 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, aka wedge u+2227 ISOtech \2227 \u2227
∨ ⊦ ⊦ logical or, aka vee u+2228 ISOtech \2228 \u2228
∩ ∩ ∩ intersection, aka cap u+2229 ISOtech \2229 \u2229
∪ ∪ ∪ union, aka 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, aka 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, aka direct sum u+2295 ISOamsb \2295 \u2295
⊗ ⊗ ⊗ circled times, aka vector product u+2297 ISOamsb \2297 \u2297
⊥ ⊥ ⊥ up tack u+22A5 ISOtech \22A5 \u22a5
⋅ ⋅ ⋅ dot operator u+22C5 ISOamsb \22C5 \u22c5
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