Unicode Math Flashcards
≜
DELTA EQUAL TO
= equiangular
= equal to by definition
≝
EQUAL TO BY DEFINITION
≞
MEASURED BY
≡
IDENTICAL TO
≣
STRICTLY EQUIVALENT TO
≬
BETWEEN
= plaintiff, quantic
≨
LESS-THAN BUT NOT EQUAL TO
≩
GREATER-THAN BUT NOT EQUAL TO
≪
MUCH LESS-THAN
≫
MUCH GREATER-THAN
≭
NOT EQUIVALENT TO
≲
LESS-THAN OR EQUIVALENT TO
Symbol
Name
2200
∀
FOR ALL
= universal quantifier
2201
∁
COMPLEMENT
→ ʗ latin letter stretched c
2202
∂
PARTIAL DIFFERENTIAL
2203
∃
THERE EXISTS
= existential quantifier
2204
∄
THERE DOES NOT EXIST
2205
∅
EMPTY SET
= null set
• used in linguistics to indicate a null morpheme or phonological “zero”
2212
−
MINUS SIGN
→ - hyphen-minus
2213
∓
MINUS-OR-PLUS SIGN
→ ± plus-minus sign
2214
∔
DOT PLUS
2215
∕
DIVISION SLASH • generic division operator → / solidus → ⁄ fraction slash → ⟋ mathematical rising diagonal
2216
∖
SET MINUS
→ \ reverse solidus
→ ⟍ mathematical falling diagonal
→ ⧵ reverse solidus operator
2217 ∗
ASTERISK OPERATOR
2206
∆
INCREMENT = Laplace operator = forward difference = symmetric difference (in set theory) • other symbols may also be used for symmetric difference
2218
∘
RING OPERATOR
= composite function
= APL jot
2207
∇
NABLA = backward difference = gradient, del • used for Laplacian operator (written with superscript 2) → ▽ white down-pointing triangle
2208
∈
ELEMENT OF
2219
∙
BULLET OPERATOR
→ · middle dot
→ • bullet
→ ․ one dot leader
221A
√
SQUARE ROOT
= radical sign
221B
∛
CUBE ROOT
2209
∉
NOT AN ELEMENT OF
220A
∊
SMALL ELEMENT OF
• originates in math pi fonts; not the straight epsilon
221D
∝
PROPORTIONAL TO
220B
∋
CONTAINS AS MEMBER
= such that
220C
∌
DOES NOT CONTAIN AS MEMBER
220D
∍
SMALL CONTAINS AS MEMBER
→ ϶ greek reversed lunate epsilon symbol
221E
∞
INFINITY
221F
∟
RIGHT ANGLE
= with (in chess notation)
220E
∎
END OF PROOF
= q.e.d.
2210
∐
N-ARY COPRODUCT
= coproduct sign
2221
∡
MEASURED ANGLE
2222
∢
SPHERICAL ANGLE
= angle arc
2223
∣
DIVIDES = such that = APL stile → | vertical line → ǀ latin letter dental click
2224
∤
DOES NOT DIVIDE
223B
∻
HOMOTHETIC
→ ⩫ tilde operator with rising dots
223C
∼
TILDE OPERATOR = varies with (proportional to) = difference between = similar to = not = cycle = APL tilde → ~ tilde → ¬ not sign → ˜ small tilde
223D
∽
REVERSED TILDE
= lazy S
• reversed tilde and lazy S are glyph variants
223E
∾
INVERTED LAZY S
= most positive
223F
∿
SINE WAVE
= alternating current
2240
≀
WREATH PRODUCT
2241
≁
NOT TILDE
2242
≂
MINUS TILDE
2243
≃
ASYMPTOTICALLY EQUAL TO
2244
≄
NOT ASYMPTOTICALLY EQUAL TO
2245
≅
APPROXIMATELY EQUAL TO
→ ⩰ approximately equal or equal to
2246
≆
APPROXIMATELY BUT NOT ACTUALLY EQUAL TO
2234
∴
THEREFORE
→ ⛬ historic site
2235
∵
BECAUSE
2236
∶
RATIO
• preferred to : for denotation of division or scale in mathematical use
2247
≇
NEITHER APPROXIMATELY NOR ACTUALLY EQUAL TO
2248
≈
ALMOST EQUAL TO
= asymptotic to
2249
≉
NOT ALMOST EQUAL TO
224A
≊
ALMOST EQUAL OR EQUAL TO
224C
≌
ALL EQUAL TO
• reversed tilde and lazy S are glyph variants
224D
≍
EQUIVALENT TO
224E
≎
GEOMETRICALLY EQUIVALENT TO
224F
≏
DIFFERENCE BETWEEN
2250
≐
APPROACHES THE LIMIT
2251
≑
GEOMETRICALLY EQUAL TO
2237
∷
PROPORTION
2252
≒
APPROXIMATELY EQUAL TO OR THE IMAGE OF
= nearly equals
2253
≓
IMAGE OF OR APPROXIMATELY EQUAL TO
2238
∸
DOT MINUS
= saturating subtraction
• sometimes claimed as notation for symmetric set difference, but ∆ is preferred
2239
∹
EXCESS
223A
∺
GEOMETRIC PROPORTION
2254
≔
COLON EQUALS
2255
≕
EQUALS COLON
2256
≖
RING IN EQUAL TO
2257
≗
RING EQUAL TO
= approximately equal to
2258
≘
CORRESPONDS TO
2259
≙
ESTIMATES
= corresponds to
225A
≚
EQUIANGULAR TO
225B
≛
STAR EQUALS
225C
≜
DELTA EQUAL TO
= equiangular
= equal to by definition
225D
≝
EQUAL TO BY DEFINITION
225E
≞
MEASURED BY
225F
≟
QUESTIONED EQUAL TO
2260
≠
NOT EQUAL TO
→ = equals sign
2261
≡
IDENTICAL TO
2262
≢
NOT IDENTICAL TO
2263
≣
STRICTLY EQUIVALENT TO
2264
≤
LESS-THAN OR EQUAL TO
2265
≥
GREATER-THAN OR EQUAL TO
2266
≦
LESS-THAN OVER EQUAL TO