map method

Matrix map(
  1. MatrixMapFunc f
)

Calls f for each element in the matrix and stores the result in a new matrix.

Matrix a = Matrix.eye(3)
a.map( (double v) {
   return v*v;
});
print(a)

with print

[[ 9.0, 0.0, 0.0], [0.0, 9.0, 0.0], [0.0, 0.0, 9.0]]

Implementation

Matrix map(MatrixMapFunc f) {
  Matrix toReturn = new Matrix.fill(m, n);
  for (int i = 0; i < m; i++) {
    for (int j = 0; j < n; j++) {
      toReturn[i][j] = f(this[i][j]);
    }
  }
  return toReturn;
}