[VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" Special
05-05-2018, 03:44 PM
Post: #3
 J-F Garnier Senior Member Posts: 943 Joined: Dec 2013
RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ...
(05-04-2018 09:39 PM)Valentin Albillo Wrote:  Step the First:
Write a program which accepts from the user an integer N from 1 to 19 and outputs the Nth digit of Log(10), the natural logarithm of 10 (= 2.302585092994045684 to 19-digit accuracy).
...
Step the Second:
...
Write a program which accepts from the user an integer N from 1 to 32 and outputs the Nth digit of Pi/2 (= 1.5707963267948966192313216916397 to 32-digit accuracy).

I don't have solutions right now for the Steps the First and Second, but the solutions will be in some way related to the LOG(10) and PI values internally known by the HP71.

PI/4 is known with 31 digits, see for instance here.
and it's easy to make the digits 13-24 of PI visible with SIN(3.14159265358).

LOG(10) is known with 20 digits (2.30...56840) within the EXP function code:

Now, how to make ALL these extra digits visible in a Basic expression?
PEEKing the nibbles from the ROM would be cheating, no?

J-F
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 Messages In This Thread [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" Special - Valentin Albillo - 05-04-2018, 09:39 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-05-2018, 10:00 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-05-2018 03:44 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-05-2018, 05:53 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-05-2018, 06:54 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-08-2018, 04:16 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-09-2018, 10:53 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-10-2018, 08:23 AM [VA] Short & Sweet Math Challenges #23 - My Solutions & Comments - Valentin Albillo - 05-10-2018, 09:55 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-10-2018, 10:56 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-11-2018, 06:29 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - pier4r - 05-11-2018, 07:51 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Egan Ford - 05-11-2018, 07:57 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-12-2018, 08:37 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-13-2018, 11:15 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - John Keith - 05-14-2018, 01:59 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-14-2018, 10:21 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 05-15-2018, 05:22 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Maximilian Hohmann - 05-15-2018, 05:42 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - brickviking - 05-17-2018, 03:22 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-17-2018, 09:12 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-20-2018, 02:50 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-20-2018, 11:01 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-21-2018, 12:02 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-21-2018, 02:14 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 05-21-2018, 02:42 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - J-F Garnier - 05-21-2018, 08:24 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-21-2018, 02:48 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 05-24-2018, 05:10 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - cortopar - 05-12-2018, 11:59 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - PeterP - 05-24-2018, 06:14 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 05-24-2018, 09:13 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-02-2018, 06:01 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 06-02-2018, 10:37 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-03-2018, 04:34 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 06-04-2018, 09:19 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-06-2018, 01:48 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 06-22-2018, 08:20 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 10-24-2019, 01:26 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 11-04-2019, 07:18 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Albert Chan - 11-05-2019, 11:17 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - PeterP - 05-25-2018, 01:57 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Warbucks - 06-03-2018, 04:52 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 06-07-2018, 03:10 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Thomas Klemm - 06-24-2018, 02:57 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - John Keith - 06-25-2018, 12:42 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Thomas Klemm - 06-25-2018, 01:41 PM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Valentin Albillo - 07-18-2018, 12:17 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - rprosperi - 07-18-2018, 01:10 AM RE: [VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" ... - Jeff O. - 11-23-2019, 10:17 PM

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