# subtraction

Subtraction is a mathematical operation^{} in which the value of a number is decreased by the values of one or more other numbers. Subtraction can be seen as a kind of addition^{} with negative numbers. For example, $7-4=7+(-4)=3$.

The usual operator looks like a dash: $-$. This operator is used in standard infix notation as well as in Polish notation and reverse Polish notation^{}.

Besides the possibility of overflow or underflow, subtraction presents no problems for fixed point arithmetic provided the operands are representable in fixed point to begin with.

Title | subtraction |
---|---|

Canonical name | Subtraction |

Date of creation | 2013-03-22 16:35:31 |

Last modified on | 2013-03-22 16:35:31 |

Owner | PrimeFan (13766) |

Last modified by | PrimeFan (13766) |

Numerical id | 6 |

Author | PrimeFan (13766) |

Entry type | Definition |

Classification | msc 00A06 |

Classification | msc 00A05 |

Classification | msc 11B25 |