[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
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 <tliko...@iki.fi> 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.