[S] GRAPHIC SYNTAX

SOFIA Stephano (cs0sso@cis.sunderland.ac.uk)
Fri, 12 Jun 1998 18:44:12 +0100


Dear all,
I'm trying to plot the following kind of function:

Y(X)=SUM(for j from (-r) to(r)) [d[j]*cos(2*PI*j*X)

where r is a positive integer and d is a vector of lenght 2*r.
How can I write Y in an acceptable form for S-Plus4?
Can anybody help me?
Many thanks
Stefano Sofia

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