Cody Boone Ferguson
5e25056532
The try.alt.sh script is slightly different from try.sh in that the order is reversed. The try.sh script now at the end always starts out in a sequence of northern hemisphere then southern hemisphere so that one can guarantee to get that form. The try.alt.sh does the same but starts out with the southern hemisphere first.
2.4 KiB
To build:
make
An alt version exists for those in the southern hemisphere (or those who want to see what it would be in the southern hemisphere). See alternate version below.
To use:
./natori
Try:
./try.sh
Try running this on different days, say a few days apart, and each time run it several times in a row (or several times in a day).
Also try modifying the code so that it will show another Moon phase based on input or else just by the code itself. Bonus points if you can make it show all~
Alternate code:
The author noted that those in the southern hemisphere might want to change
acos(l/2) into acos(-l/2) which we have done in the alternate version.
Alternate build:
To run the alternate code that supports the southern hemisphere:
make alt
Alternate use:
./natori.alt
Try running this on different days, say a few days apart, and each time run it several times in a row (or several times in a day).
What happens if you run it in the northern hemisphere? Are there any differences?
Can you identify any Moon phases that result in the same output of both versions? Or are there any?
Alternate try:
./try.alt.sh
Like with try.sh, try using this multiple times.
Judges' remarks:
Here is a nice compact program that changes with the phase of the Moon. Can you figure out how it does it?
The ANSI-C committee, among their multiple misdeeds, broke perfectly fun C
programs by making it intractable for them to declare their own non-traditional
prototype for main(). We have had to uglify this program in order to prevent
C compilers from failing to compile it due to (the now changed) unusual arg
types of the main() function.
Author's remarks:
This program outputs a rough image of the moon in its current phase. The main obfuscation of this entry is its complicated double recursion (without any loop or conditional statement).
People living in the southern hemisphere may want to change acos(l/2)
into acos(-l/2).
Copyright and CC BY-SA 4.0 License:
This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved. You are free to share and adapt this file under the terms of this license:
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
For more information, see: https://creativecommons.org/licenses/by-sa/4.0/