SassyMatrix

All you ever wanted to deal with matrices in Sass.

What's in there?

Instanciating matrix

• matrix($x, $y: $x): create a matrix of $x rows by $y columns filled with 0s
• unit-matrix($x, $y): create a matrix of $x rows by $y columns filled with 0s except the diagonal which is filled with 1s

Writing in matrix

• set-entry($matrix, $coords, $value): set $value at $matrix[$coords[1], $coords[2]]

Reading matrix

• get-entry($matrix, $coords): get entry at $matrix[$coords[1], $coords[2]]

Displaying matrix

• display($matrix): display matrix

Altering matrix

• swap-entries($matrix, $e1, $e2): swaps values $e1 and $e2 from $matrix
• swap-rows($matrix, $r1, $r2): swaps rows $r1 and $r2 from $matrix
• swap-columns($matrix, $c1, $c2): swaps columns $c1 and $c2 from $matrix
• transpose($matrix): rotates $matrix around its diagonal
• add-matrices($matrix1, $matrix2): add $matrix1 and $matrix2

Checking for matrix properties

• columns($matrix): return number of columns in $matrix
• rows($matrix): return number of rows in $matrix
• is-numeric($matrix): check whether $matrix has only numeric values
• is-square($matrix): check whether $matrix has as many rows as columns
• is-diagonal($matrix): check whether all values from the main diagonal of $matrix are set while all other values are equal to 0
• is-lower-triangular($matrix, $flag: null): check whether all value below $matrix diagonal are equal to 0
• is-upper-triangular($matrix, $flag: null): check whether all value above $matrix diagonal are equal to 0

Requirements

All you need is a clean version of Sass 3.3. Otherwise it's just pure Sass madness.