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{ WAVE_BOUNDARY.PDE
This problem demonstrates the use of data ARRAYS in boundary definition.
Coordinate arrays are constructed by functional array definition
and joined in a spline fit to form the system boundary.
}
title 'wave boundary'
definitions
base=2
ysine = array for p(0 by 0.1 to 10): sin(2*p)+base
xsine = array for p(0 by 0.1 to 10): p
boundaries
Region 1
start(0,0)
line to (0,base)
spline list(xsine,ysine)
line to (10,0) to close
plots
grid(x,y)
end