elementWise method

Matrix elementWise(
  1. Matrix other,
  2. dynamic f(
    1. dynamic,
    2. dynamic
    )
)

applies the given binary function element-wise on this matrix and the given matrix.

other: The matrix to element-wise apply the function with this matrix. f: The binary function to apply element-wise on the matrices.

Returns a new matrix containing the result of the element-wise function application.

Example:

var matrixA = Matrix([[1, 2], [3, 4]]);
var matrixB = Matrix([[2, 3], [4, 5]]);
var result = matrixA.elementWise(matrixB, (a, b) => a * b);
print(result);
// Output:
// 2  6
// 12 20

Implementation

Matrix elementWise(Matrix other, dynamic Function(dynamic, dynamic) f) {
  if (rowCount != other.rowCount || columnCount != other.columnCount) {
    throw Exception(
        "Matrices must have the same shape for element-wise operation");
  }

  List<List<dynamic>> newData = List.generate(rowCount,
      (i) => List.generate(columnCount, (j) => f(this[i][j], other[i][j])));
  return Matrix(newData);
}