[plt-scheme] Endless loop and I don't see why

From: Anton van Straaten (anton at appsolutions.com)
Date: Thu Oct 3 16:28:52 EDT 2002

You need to take a careful look at the 'good-enough?' procedure, think about
how it knows when the answer is good enough, and think about what it might
need to do differently for cubing vs. squaring.

Not sure how that fits in with what SICP wants you to do, but it'll fix your


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