| + | plus/add |
| - | minus/subtract |
 | divide |
| / | divide |
 | multiply/times |
| . | multiply/times, scalar product of vectors |
 | is equal to |
 | is identically equal to, defined as |
 | does not equal |
 | is approximately equal to |
 | is greater than |
 | is greater than or equal to |
 | is much greater than |
 | is less than |
 | is less than or equal to |
 | is much less than |
 | plus or minus, error margin |
 | minus or plus |
 | complex set |
 | integer set |
 | natural set |
 | rational set |
 | real set |
 | is to, ratio, such that |
 | as |
 | therefore |
 | because |
 | for all |
 | there exists |
| { } | set |
| < > | mean |
 | (square) root of |
 | denotes an operation |
 | angle |
 | parallel |
| congruent |
 | perpendicular |
 | intersection |
 | union |
 | subset |
 | is not a subset |
 | belongs to |
 | does not belong to |
 | empty set |
 | cardinality |
 | finite difference or increment |
 | colon |
 | semicolon |
| % | per cent |
| ' | first derivative, feet, arcminutes |
| " | second derivative, inches, arcseconds |
| ° | degrees |
 | difference |
 | ellipsis |
 | is equivalent to |
 | implies |
| iff | if, and only if |
 | factorial |
 | infinity |
 | integral |
 | imaginary part of a complex number |
 | real part of a complex number |
 | maps into, approaches the limit |
 | the sum of the terms indicated (sigma) |
 | the product of the terms indicated (pi) |
 | is proportional to |
 | vector differential |
