math 2 8

a b x x 5 3 x x N p q p P q P pq 2x x x3 x2 4 123 456 N[123/456, 39] $0.269736842105263157894736842105263157894\ldots$ evalf(123/456, 39); 0.269736842105263157894 736842105263157894 123 456