manhattanNorm method
Returns the Manhattan norm of the vector.
Vector v = Vector([1.0, 1.0, 1.0]);
print(v.manhattanNorm());
will print 3.0
Implementation
double manhattanNorm() {
double v = 0.0;
for (int i = 0; i < elements; i++) {
v += this[i].abs();
}
return v;
}