why won't simplify square roots?

danny
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sage: assume(x>2)

sage: sqrt(x^2 - 2*x + 1).simplify_full()

sqrt(x^2 - 2*x + 1)

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You can use the canonicalize_radical method for that:

sage: e = sqrt(x^2 - 2*x + 1)
sage: e.canonicalize_radical()
x - 1

However, the assumptions are not taken into account, please read the warning in the doc:

sage: e.canonicalize_radical?

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Last updated: Nov 24 '16