# Diff of /trunk/doc/user/notation.tex

revision 2922 by jfenwick, Thu Jan 28 02:03:15 2010 UTC revision 2923 by jfenwick, Thu Feb 4 04:05:36 2010 UTC
# Line 21  There are two rules which make up the co Line 21  There are two rules which make up the co
21
22  firstly, the rank of the tensor is represented by an index. For example, \$a\$ is a scalar; \$b\hackscore{i}\$ represents a vector; and \$c\hackscore{ij}\$ represents a matrix.  firstly, the rank of the tensor is represented by an index. For example, \$a\$ is a scalar; \$b\hackscore{i}\$ represents a vector; and \$c\hackscore{ij}\$ represents a matrix.
23
24  Secondly, if an expression contains subscripted variables, they are assumed to be summed over all possible values, from \$0\$ to \$n\$. For example, for the following expression:  Secondly, if an expression contains repeated subscripted variables, they are assumed to be summed over all possible values, from \$0\$ to \$n\$. For example, for the following expression:
25
26
27

Legend:
 Removed from v.2922 changed lines Added in v.2923