## Overview

Reduces any matrix into echelon or reduced echelon form. Echelon form has all nonzero rows above any rows of all zeros, each leading entry of a row in a column to the right of the leading entry of the row above it, zeros in all entries in a column below a leading entry, and one as the leading entry in each nonzero row. Reduced echelon form is the same except that it also as ha leading one as the only nonzero entry in its column. The matrix on the left is in echelon form and the matrix on the right is in reduced echelon form. Both were generated by this program using the matrix in the instructions.

## Instructions

First, the matrix that you want to reduce must be in [A]. To put it there use the matrix edit window as shown. Then run the program and select echelon or reduced echelon form. The resulting matrix is displayed and also stored in [A].

## Download

475 bytes on calculator | |

TI82 HTML Source Code | Best version to use when keying in the program in by hand. |

TI82 Plain Text Source Code | In the ASCII format used by the TI Graph Link software. Consult the character reference for special characters such as '/'. |

TI82 Application | Upload to calculator using TI Graph Link software and computer/calculator cable connection. |

TI83/TI83-Plus HTML Source Code | Best version to use when keying in the program in by hand. |

TI83/TI83-Plus Plain Text Source Code | In the ASCII format used by the TI Graph Link software. Consult the character reference for special characters such as '/'. |

TI83 Application | Upload to calculator using TI Graph Link software and computer/calculator cable connection. |

TI83-Plus Application | Upload to calculator using TI Graph Link software and computer/calculator cable connection. |