dotL method
Implementation
Vector dotL(Vector v) {
assert(v.size == this.nrows, 'Vector must be of size nrows');
final Vector result = Vector.zeros(this.ncols);
for (int j = 0; j < this.ncols; j++) {
for (int i = 0; i < this.nrows; i++) {
result[j] += this[i][j] * v[i];
}
}
return result;
}