Dear all, I am working with Maple 11 and 12 on an Intel Mac running Leopard, and I am having trouble with a very simple script that keeps telling "kernel connection lost"; see below. > restart; with(CurveFitting); > poly2 := proc (x, u) return PolynomialInterpolation(x, u, z) end proc; proc(x, u) ... end; > getArrays := proc (left, right) local x, u; x := [seq(h*i, i = left .. right)]; u := [seq(u[i], i = left .. right)]; return x, u end proc; proc(left, right) ... end; > x, u := getArrays(-2, 2); [-2 h, -h, 0, h, 2 h], [u[-2], u[-1], u[0], u[1], u[2]] > poly2(x, u); I have tried a wide range of data types, (vectors, arrays, sequences), but to no avail. I also checked the manuals and googled for this error, but found nothing concrete enough to be of use. Am I doing something silly ? Thanks already for any possible pointer ! Giovanni

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