use fmt;
use ;
use crate*;
pub use crate*;
measure!;
measure!;
measure!;
measure!;
measure!;
measure!;
measure!;
measure!;
product!;
product!; // Ohm's law.
product!;
inverse!;
inverse!;
inverse_sum_inverse!;
inverse_sum_inverse!;
inverse_sum_inverse!;