Question: Two plotting queries

Hiya,

I have two questions...
Firstly when plotting a graph in Maple using plots[display]({A1,A2,A3}), is there anyway to switch the horizontal and vertical axes such that f(z) is on the horizontal axis and z along the vertical?

Secondly, I'm trying to plot a sum at various times t,

c(z,t)
:= Sum(A[n]*Phi[n](z)*exp(-lambda[n]*t), n = 1 .. 10)

The values of A[n], Phi[n], lambda[n] have been calculated earlier numerically and are defined by A[1], A[2], ... Phi[1], Phi[2]... etc ... But now I'm not really sure how to proceed in terms of the plot...

Thanks for any advice,
k

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