Michael Somos on Wed, 11 Dec 2002 14:26:13 -0500


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Re: How to eliminate the big-oh


Franck Michel writes :

> but truncate(taylor((1-x)/(1-t),t)) does not eliminate the big-oh. 

True, but :

? print(truncate(taylor((1-t)/(1-x)+O(x^5),x)))  
(-t + 1)*x^4 + (-t + 1)*x^3 + (-t + 1)*x^2 + (-t + 1)*x + (-t + 1)

may be what you are looking for. Perhaps if you give an example of
desired output we could give an expression to produce it. Shalom,
Michael