## On the Subject of Not Coordinates

Column second or row second?

Picture a 9×9 grid. Determine the positions on the grid that are indicated by the module.

Each display corresponds to a unique position in the grid.

Three of the positions lie on three vertices of a square within the grid. Submit the three displays that correspond to those positions.

Use the left and right arrows to cycle through the list of displays and the middle button to submit the current display.

#### Grid position formats

[x,y] | Column, then row; top-left is [0,0]. |
---|---|

letter number | Column, then row; top-left is A1. |

<x, y> | Row, then column; top-left is <0, 0>. |

x, y | Row, then column; top-left is 1, 1. |

(x,y) | Column, then row; bottom-left is (0,0). |

letter-number | Column, then row; bottom-left is A-1. |

“x, y” | Row, then column; bottom-left is “0, 0”. |

x/y | Row, then column; bottom-left is 1/1. |

[x] | Cell number in scanline order, top-left is [0]. |

xth | Cell number in scanline order, top-left is 1st. |

#x | Cell number in Cartesian order, bottom-left is #1. |

四十七 | Cell number in Chinese reading order, top-right is 一. (The example shown is the number 47.) |

x cardinal, y cardinal | The number of spaces, in the specified direction(s), from the centre of the grid. "centre" is displayed if the corresponding position is the centre of the grid. |

cardinal from cardinal | The second cardinal is the relative position of the 3×3 subgrid from the centre. The first cardinal is the relative position of the cell from the centre of the subgrid. If only one cardinal is displayed, the cell is at the centre of the displayed subgrid. |