## XYZ

XYZinterjection

*Informal*

Used to indicate to someone that the zipper of his or her pants is open.

Origin of XYZ

*ex(amine) y(our) z(ipper)*

- Successive triangles in the diagram of forces may be constructed in the order
**XYZ**, ZXA, AZB. - This is of degree 8 in the coefficients, and degree 6 in the variables, and, for the canonical form, has the expression -9m 6 (x 3 +y 3 +z 3) 2 - (2m +5m 4 +20m 7) (x3 +y3+z3)
**xyz**- (15m 2 +78m 5 -12m 8) Passing on to the ternary quartic we find that the number of ground forms is apparently very great. - The Hessian is symbolically (abc) 2 azbzcz = H 3, and for the canonical form (1 +2m 3)
**xyz-m**2 (x 3 +y 3 +z 3).

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