The plotseq
or seqplot
or graphe_suite
command draws the process of finding the terms of a recurrent sequence.
plotseq takes:
expr, an expression depending on a variable.
var=a, the variable and a beginning value. (If
var=x, then the variable name can be omitted.)
The a value can be replaced by a list of three elements,
[a,x−,x+] where x−..x+ will be passed as the range of the
variable for the graph computation.
n, the ending value of the variable.
plotseq(expr,var=a,n)
draws the line y=x, the graph of y=expr, and the n
first terms of the recurrent sequence defined by: u0=a,
un=f(un−1) where f is the function determined by expr.
