3 @node Introduction to xrefs
4 @section Introduction to xrefs
15 - This package has been renamed CTENSR.
17 @section HYPERGEOMETRIC
18 - Do DESCRIBE(SPECINT); .HYPERGEOMETRIC_FUNCTIONS HYPERGEOMETRIC_FUNCTIONS - Do DESCRIBE(SPECINT); .
21 - See DESCRIBE(SPECINT); .
30 - Do DESCRIBE(INTEGRALS);
33 - This is the notation MACSYMA uses for Polylogarithms and
34 Dilogarithms. See POLYLOGARITHMS.
40 - Do DESCRIBE(MACROS);
43 - See DESCRIBE(MATRIX); .
46 - MACSYMA uses the standard Mathematical operators:
48 !! for Double factorial,
49 ^ or ** for Exponentiation,
51 . for non-commutative multiplication
55 In addition, it uses some other operators:
56 : for variable assignment (e.g. A:3 sets A to 3).
57 := for function definition (e.g. F(X):=SIN(X) defines a function F).
58 Note: the term operator is used in either of two senses: syntactic
59 (meaning that it has special syntax properties in the MACSYMA
60 language) or semantic (referring to its functionality). In the
61 syntactic sense it is something which usually consists of
62 non-alphanumeric characters, e.g. "+" or "*" (exceptions include
63 "AND", "OR", and "NOT"). Semantically we sometimes refer to the
64 "operator of an expression", meaning that thing which is in the
65 operator part of the expression, such as the "+" in "A+B" or SIN in
66 "SIN(x)". Note: "+" in this latter example is also an operator in the
67 syntactic sense, whereas SIN is a mathematical function.
70 - see plot3d,plot2d,plot2d_xgraph,psdraw_curve ..
73 - The Ricci tensor, do DESCRIBE(RICCICOM);
76 - See DESCRIBE(NTERMS); and DESCRIBE(LENGTH); for two ways to
77 get an idea of the size of an expression.
80 - Do DESCRIBE(TENSORS);
92 @node Definitions for xrefs
93 @section Definitions for xrefs