annotate fmatrix.yeti @ 16:e8d404787c35

Start on tests

module fmatrix;

vec = load fvector;

zeroMatrix rows cols = array (map \(vec.zeros cols) [1..rows]);

generateMatrix f rows cols =
   (m = zeroMatrix rows cols;
    for [0..rows-1] do row:
        for [0..cols-1] do col:
            m[row][col] := f row col;
        done;
    done;
    m);

constMatrix n = generateMatrix do row col: n done;
randomMatrix = generateMatrix do row col: Math#random() done;
identityMatrix = constMatrix 1;

width m = if length m > 0 then vec.vectorLength m[0] else 0 fi;
cols = width;

height m = length m;
rows = height;

dimensions m = { cols = width m, rows = height m };

copyOfMatrix m = array (map vec.copyOfVector m);

transposed m is array<~double[]> -> array<~double[]> = 
    generateMatrix do row col: m[col][row] done (cols m) (rows m);

{
generateMatrix, constMatrix, randomMatrix, zeroMatrix, identityMatrix,
width, cols, height, rows, dimensions,
copyOfMatrix,
transposed,
}