| Glyph | Code | Description |
|---|---|---|
| ! | U+0021 | EXCLAMATION MARK |
| % | U+0025 | PERCENT SIGN |
| & | U+0026 | AMPERSAND |
| * | U+002A | ASTERISK |
| + | U+002B | PLUS SIGN |
| - | U+002D | HYPHEN-MINUS |
| / | U+002F | SOLIDUS |
| < | U+003C | LESS-THAN SIGN |
| = | U+003D | EQUALS SIGN |
| > | U+003E | GREATER-THAN SIGN |
| ? | U+003F | QUESTION MARK |
| ^ | U+005E | CIRCUMFLEX ACCENT |
| | | U+007C | VERTICAL LINE |
| ~ | U+007E | TILDE |
| ¡ | U+00A1 | INVERTED EXCLAMATION MARK |
| § | U+00A7 | SECTION SIGN |
| ¬ | U+00AC | NOT SIGN |
| ± | U+00B1 | PLUS-MINUS SIGN |
| ¶ | U+00B6 | PILCROW SIGN |
| ¿ | U+00BF | INVERTED QUESTION MARK |
| × | U+00D7 | MULTIPLICATION SIGN |
| ÷ | U+00F7 | DIVISION SIGN |
| ′ | U+2032 | PRIME |
| ← | U+2190 | LEFTWARDS ARROW |
| ↑ | U+2191 | UPWARDS ARROW |
| → | U+2192 | RIGHTWARDS ARROW |
| ↓ | U+2193 | DOWNWARDS ARROW |
| ↔ | U+2194 | LEFT RIGHT ARROW |
| ↦ | U+21A6 | RIGHTWARDS ARROW FROM BAR |
| ↼ | U+21BC | LEFTWARDS HARPOON WITH BARB UPWARDS |
| ↽ | U+21BD | LEFTWARDS HARPOON WITH BARB DOWNWARDS |
| ⇀ | U+21C0 | RIGHTWARDS HARPOON WITH BARB UPWARDS |
| ⇁ | U+21C1 | RIGHTWARDS HARPOON WITH BARB DOWNWARDS |
| ⇐ | U+21D0 | LEFTWARDS DOUBLE ARROW |
| ⇑ | U+21D1 | UPWARDS DOUBLE ARROW |
| ⇒ | U+21D2 | RIGHTWARDS DOUBLE ARROW |
| ⇓ | U+21D3 | DOWNWARDS DOUBLE ARROW |
| ⇔ | U+21D4 | LEFT RIGHT DOUBLE ARROW |
| ∀ | U+2200 | FOR ALL |
| ∃ | U+2203 | THERE EXISTS |
| ∈ | U+2208 | ELEMENT OF |
| ∋ | U+220B | CONTAINS AS MEMBER |
| ∏ | U+220F | N-ARY PRODUCT |
| ∐ | U+2210 | N-ARY COPRODUCT |
| ∑ | U+2211 | N-ARY SUMMATION |
| ∓ | U+2213 | MINUS-OR-PLUS SIGN |
| ∘ | U+2218 | RING OPERATOR |
| ∙ | U+2219 | BULLET OPERATOR |
| ∝ | U+221D | PROPORTIONAL TO |
| ∠ | U+2220 | ANGLE |
| ∥ | U+2225 | PARALLEL TO |
| ∧ | U+2227 | LOGICAL AND |
| ∨ | U+2228 | LOGICAL OR |
| ∩ | U+2229 | INTERSECTION |
| ∪ | U+222A | UNION |
| ∫ | U+222B | INTEGRAL |
| ∮ | U+222E | CONTOUR INTEGRAL |
| ∲ | U+2232 | CLOCKWISE CONTOUR INTEGRAL |
| ∳ | U+2233 | ANTICLOCKWISE CONTOUR INTEGRAL |
| ∴ | U+2234 | THEREFORE |
| ∵ | U+2235 | BECAUSE |
| ≀ | U+2240 | WREATH PRODUCT |
| ≃ | U+2243 | ASYMPTOTICALLY EQUAL TO |
| ≅ | U+2245 | APPROXIMATELY EQUAL TO |
| ≈ | U+2248 | ALMOST EQUAL TO |
| ≍ | U+224D | EQUIVALENT TO |
| ≐ | U+2250 | APPROACHES THE LIMIT |
| ≠ | U+2260 | NOT EQUAL TO |
| ≡ | U+2261 | IDENTICAL TO |
| ≤ | U+2264 | LESS-THAN OR EQUAL TO |
| ≥ | U+2265 | GREATER-THAN OR EQUAL TO |
| ≪ | U+226A | MUCH LESS-THAN |
| ≫ | U+226B | MUCH GREATER-THAN |
| ≺ | U+227A | PRECEDES |
| ≻ | U+227B | SUCCEEDS |
| ≼ | U+227C | PRECEDES OR EQUAL TO |
| ≽ | U+227D | SUCCEEDS OR EQUAL TO |
| ⊂ | U+2282 | SUBSET OF |
| ⊃ | U+2283 | SUPERSET OF |
| ⊆ | U+2286 | SUBSET OF OR EQUAL TO |
| ⊇ | U+2287 | SUPERSET OF OR EQUAL TO |
| ⊎ | U+228E | MULTISET UNION |
| ⊑ | U+2291 | SQUARE IMAGE OF OR EQUAL TO |
| ⊒ | U+2292 | SQUARE ORIGINAL OF OR EQUAL TO |
| ⊓ | U+2293 | SQUARE CAP |
| ⊔ | U+2294 | SQUARE CUP |
| ⊕ | U+2295 | CIRCLED PLUS |
| ⊖ | U+2296 | CIRCLED MINUS |
| ⊗ | U+2297 | CIRCLED TIMES |
| ⊘ | U+2298 | CIRCLED DIVISION SLASH |
| ⊙ | U+2299 | CIRCLED DOT OPERATOR |
| ⊢ | U+22A2 | RIGHT TACK |
| ⊣ | U+22A3 | LEFT TACK |
| ⊤ | U+22A4 | DOWN TACK |
| ⊥ | U+22A5 | UP TACK |
| ⊨ | U+22A8 | TRUE |
| ⋄ | U+22C4 | DIAMOND OPERATOR |
| ⋅ | U+22C5 | DOT OPERATOR |
| ⋆ | U+22C6 | STAR OPERATOR |
| ⋈ | U+22C8 | BOWTIE |
| ⋮ | U+22EE | VERTICAL ELLIPSIS |
| ⋯ | U+22EF | MIDLINE HORIZONTAL ELLIPSIS |
| ⋰ | U+22F0 | UP RIGHT DIAGONAL ELLIPSIS |
| ⋱ | U+22F1 | DOWN RIGHT DIAGONAL ELLIPSIS |
- Preserve all existing ASCII operator characters.
- Include
¡and¿to complement non-C Swift operators!and?(on-list request). - Include
§due to extant use in Operadics package and¶to complement that usage. - Include NFKC non-operand characters given in UTN28, excluding enclosures, spaces, big/long variants, arrows that display as emoji on common platforms, and characters confusable with ASCII operator characters.
- Where two semantically equivalent characters would otherwise be listed, favor the "operator" equivalent as recommended by Unicode (e.g.,
BULLET OPERATORoverBULLET)--unless the "non-operator" equivalent is an ASCII character, as a pragmatic concession to backward compatibility (e.g.,ASTERISKoverASTERISK OPERATOR).