The quantity obtained by letting
(1)
| |||
(2)
|
in
(3)
|
so that
(4)
| |||
(5)
| |||
(6)
|
and
(7)
|
is called the modulus.
The quantity obtained by letting
(1)
| |||
(2)
|
in
(3)
|
so that
(4)
| |||
(5)
| |||
(6)
|
and
(7)
|
is called the modulus.
Weisstein, Eric W. "Quadratic Invariant Modulus." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/QuadraticInvariantModulus.html