list command

[parisse]

A sequence is a basic container for objects, for example for functions with several arguments (the arguments of the function are grouped in a sequence). From a sequence you can make a list or vector (there is no difference inside the CAS), or a set (objects are unique) or a univariate polynomial (dense representation: list of coefficients by decreasing order) by using the appropriate delimiters: [] for lists or vectors ({} also accepted on the prime), set[ ] for sets or poly1[ ] for univarite polynomials. Conversly you can get a sequence from a list with op. The main difference between a sequence and a list is that you can not make a sequence of sequences: using comma between 2 sequences concatenates them (at evaluation step).