Integer lists are used in a wide variety of contexts, e.g. in the preprocessor repeat directive. This web page documents the syntax of integer lists.
Note: in some contexts elements of the list are real numbers, not integers. The syntax is the same for real numbers.
Integer lists consist of a sequence of strings separated by commas:
Each of the strn1, strn2, … can assume one of the following three forms:
a single integer or algebraic expression
two integer expressions separated by a colon, viz
gets expanded into
low, low+1, low+2, ... high
Three integer expressions separated by colons, viz
gets expanded into:
low, low+step, low+2*step, ... high
(Extension, applicable only in some contexts). The dup tag:
duplicates the entire list to this point, and # is added to the duplicate elements. Thus the list doubles in size.
5+1 becomes a single number, 6. 5+1:8+2 becomes a sequence of numbers, 6 7 8 9 10 5+1:8+2:2 becomes a sequence of numbers, 6 8 10 1:4,7:11 becomes the sequence 1 2 3 4 7 8 9 10 11 5,6,8,dup=16 becomes 5 6 8 21 22 24 (where applicable)
Note: slatsm/mkilst.f contains the source code for generating integer lists.
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