+ | 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 |

| factorial |

| infinity |

| integral |

| maps into, approaches the limit |

| the sum of the terms indicated (sigma) |

| the product of the terms indicated (pi) |

| is proportional to |

| vector differential |