## On the Subject of a Coordinate Grid

Column first or row first?

All information pertaining to the module can be found in the original manual.

#### Table 1: grid size formats

Format | How to interpret |
---|---|

x | The number x is a product of two primes. The grid’s width is the larger prime, the height the smaller. |

(x) | Same as x, but width and height are swapped. |

x×y | x is the width, y the height of the grid. |

x by y | x is the height, y the width of the grid. |

x*y | x is the total size of the grid, y the height. |

x : y | x is the total size of the grid, y the width. |

#### Table 2: grid location 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[1]; top-left is [0]. |

xth | Cell number in scanline order[1]; top-left is 1st. |

#x | Cell number in Cartesian order[2]; bottom-left is #1. |

四十七 | Cell number in Chinese reading order[3]; top-right is 一. See Table 3 for Chinese numerals reference. The example shown here represents the number 47. |

#### Table 3: Chinese numerals

一 | 1 | 六 | 6 |
---|---|---|---|

二 | 2 | 七 | 7 |

三 | 3 | 八 | 8 |

四 | 4 | 九 | 9 |

五 | 5 | 十 | 10 |

[1] Scanline order, also known as reading order, starts at the top-left, moves right across the row, and then continues likewise with each row from top to bottom.

[2] Cartesian order, also known as geometric order, starts at the bottom-left, moves right across the row, and then continues likewise with each row from bottom to top.

[3] Traditional Chinese reading order starts at the top-right, moves down the column, and then continues likewise with each column from right to left.