plural of form of address

Formed by itself.

plural of argument form

The imprint upon the surface of a body of water that is made by a feeding trout, indicative by its form of the feeding behavior of the fish.

plural of life form

A representation of a number in terms of powers of a base, such as the representation of 1234 as 4⨯16²+13⨯16+2⨯16⁰ or the representation of 2345 as 2000+300+40+5.

plural of quadratic form

(mathematics, number theory, algebra) A homogeneous polynomial of degree 2 in a given number of variables.

(algebra) A linear combination of powers of an indeterminate (or products of powers of more than one indeterminate), with coefficients belonging to an integral domain or a field. (The indeterminate is thought of as an element extraneous to the set of coefficients, instead of as a variable element of it (as in the case of polynomial functions), just as, say, the square root of negative one is an element extraneous to the set of integers when it is adjoined to them to form the domain of Gaussian integers. The indeterminate forms a free commutative monoid, to which all powers of it belong, and the unity of it can also show up implicitly in the constant term of a polynomial form.)

(linear algebra) bilinear form