featurep SciMax Toolbox fft

SciMax Toolbox >> features

features

Declaration

features

Description

Maxima recognizes certain mathematical properties of functions and variables. These are called "features".

declare (x, foo) gives the property foo to the function or variable x.

declare (foo, feature) declares a new feature foo. For example, declare ([red, green, blue], feature) declares three new features, red, green, and blue.

The predicate featurep (x, foo) returns true if x has the foo property, and false otherwise.

The infolist features is a list of known features. These are integer, noninteger, even, odd, rational, irrational, real, imaginary, complex, analytic, increasing, decreasing, oddfun, evenfun, posfun, commutative, lassociative, rassociative, symmetric, and antisymmetric, plus any user-defined features.

features is a list of mathematical features. There is also a list of non-mathematical, system-dependent features. See .

featurep SciMax Toolbox fft