@Nonnull @Override public Variable newInstance() { return new Rand(); }
@Override public Generic numeric() { return selfExpand().numeric(); }
@Nonnull @Override public Operator newInstance(@Nonnull Generic[] parameters) { return new Rand(); }
@Nonnull @Override public Variable newInstance() { return new Rand(); }
@Override public Generic numeric() { return selfExpand().numeric(); }
@Nonnull @Override public Operator newInstance(@Nonnull Generic[] parameters) { return new Rand(); }