 |  |  | How to change a PERMUTATIONobject |
How to change a PERMUTATIONobject
The first routine and also the corresponding macro changes the kind:
- NAME: c_p_k, C_P_K
- SYNOPSIS: c_p_k(OP p, OBJECTKIND k)
- DESCRIPTION: It changes the value, which indicates the kind of the
PERMUTATION object p. Up to now there are only two kinds,
which are allowed, VECTOR and ZYKEL. If you use
the macro, there will be no checks on the correct input
parameters.
Here is a concrete example program:
...
scan(PERMUTATION,a);
println(a);
c_p_k(a,ZYKEL);
println(a);
...
You see that the data part of the object remains unchanged, but is
now interpreted as a
permutation in cycle notation. If you enter, for example,
the permutation (in list notation, which is the default)
[3,5,4,1,2], then
the second println will output
(3,5,4)(1,2).
harald.fripertinger@kfunigraz.ac.at,
last changed: November 19, 2001
| | | How to change a PERMUTATIONobject |