An example of a perfect square is 4, because 4 can be reached by multiplying 2 times 2.
When a skew symmetric determinant is of even degree it is a perfect square.
=y la xl -i-y2a x2 must also vanish for the root a, and thence ax, and a must also vanish for the same root; which proves that a is a double root of f, and f therefore a perfect square.
In the article Geometry, Analytical, it iS Shown that the general equation of the second degree represents a parabola when the highest terms form a perfect square.
triode squarer is not a perfect square wave.
If any symmetrical determinant vanish and be bordered as shown below all a12 a13 Al a12 a22 a23 A2 a13 a23 a33 A3 Al A2 A3 Ã¯¿½ it is a perfect square when considered as a function of A 11 A2, A3.