From: Marc Heiler <shevegen@...>
Date: 2010-01-02T10:43:55+09:00
Subject: Rounding float in ruby via .round

.round does not want arguments. Is there a reason why not?

Ok, we can easily have workarounds by extending class Float. Or using
another strategy.

http://www.hans-eric.com/code-samples/ruby-floating-point-round-off/

But it made me actually wonder - is there a reason why .round does not
want any arguments?

My brain would easily tell me that I would expect

2.29801801942891420890142890124.round(3)

to become 2.298

Is this not possible because it would become a different object?
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