Christian Wolinski

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These are questions asked by Christian Wolinski

Let there be an infinite sequence of real numbers: A=a[0], a[1], ... .
Let P = (n -> sum(a[i]*x^i, i=0..n)).
What is A if for all n: P(n) has n real roots.

Can someone explain why it would be reported that degree(0,x)=-infinity, ldegree(0,x)=infinity;
How are these used in an argument?

Is there a way to log the terminal output to a .txt file?

curry(`?[]`,f)([1]);
                                                  

There is a builtin command "callback". It exists both in Maple 5 and today's Maple. There is no documentation on it. What is it? Why does it exist? Is there any code that uses it?

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