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From: Gregory Heytings <gregory@heytings.org>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: help-gnu-emacs@gnu.org
Subject: Re: The next exercise
Date: Fri, 09 Dec 2022 20:33:51 +0000	[thread overview]
Message-ID: <574c1ceba8ee790f5f45@heytings.org> (raw)
In-Reply-To: <87edt8tklz.fsf@web.de>


>> M-: (substring (number-to-string (expt 1001 1000)) 0 3) RET
>>
>> "271"
>
> Yes - correct!
>
> My expectation was that someone would try Emacs Calc.  Because it can 
> compute the number exactly - all digits.
>

You asked for the first three digits, but of course expt also computes the 
number exactly:

M-: (expt 1001 1000) RET

But indeed:

M-x calc RET 1001 RET 1000 RET ^




  parent reply	other threads:[~2022-12-09 20:33 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-09 19:09 The next exercise Michael Heerdegen
2022-12-09 19:42 ` tomas
2022-12-09 20:38   ` Michael Heerdegen
2022-12-10  2:09     ` Emanuel Berg
2022-12-10  6:18     ` tomas
2022-12-10  7:28       ` Emanuel Berg
2022-12-10  2:05   ` Emanuel Berg
2022-12-09 19:44 ` Gregory Heytings
2022-12-09 19:58   ` Michael Heerdegen
2022-12-09 20:19     ` tomas
2022-12-09 20:33     ` Gregory Heytings [this message]
2022-12-09 20:51       ` Michael Heerdegen
2022-12-09 21:27         ` Emanuel Berg
2022-12-12  1:34           ` Michael Heerdegen
2022-12-15  5:29             ` Emanuel Berg
2022-12-15 22:24               ` Michael Heerdegen
2022-12-15 23:17               ` Michael Heerdegen
2022-12-16  1:16                 ` Michael Heerdegen
2022-12-17  0:20                 ` Emanuel Berg
2022-12-18  0:11                   ` Michael Heerdegen
2022-12-20  4:45                     ` Emanuel Berg
2022-12-11 19:48         ` Andy Moreton
2022-12-12  1:39           ` Michael Heerdegen
2022-12-15 10:47             ` Emanuel Berg
2022-12-10  2:25       ` Emanuel Berg
2022-12-09 20:43 ` Emanuel Berg
2022-12-09 21:29   ` Michael Heerdegen

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