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Re: Roots other than square roots in Emacs calc


From: Jay Belanger
Subject: Re: Roots other than square roots in Emacs calc
Date: Tue, 25 Aug 2009 09:16:46 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)


>> > On Aug 25, 6:15 am, Teemu Likonen <address@hidden> wrote:
>> >> Emacs calc can calculate square roots with "Q" command or with
>> >> sqrt(x). How about other roots? How to get cube root, for example?

The ^ command gives powers; with the inverse flag, I ^, you will get the
roots.  So, for example, to find the cube root of 27, you can enter
27 RET 3 I ^

> few years ago i asked for how to do square root in comp.emacs and was
> having a fit to boot, and they told me raise it to 1/2.

Someone may well have said that, but it was also pointed out that the
manual (under "Basic Arithmetic") clearly states that "Q" gives the
square root.



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