Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <h2>Perl, <em>95</em> <del>96</del> <del>99</del> <del>106</del> <del>109</del> <del>110</del> <del>119</del> characters:</h2> <pre><code>$t+=$;=1|2*sqrt($r**2-($u-2*$_)**2),say$"x($r-$;/2).'*'x$;for 0.. ($u=($r=&lt;&gt;)-1|1);say$t*2/$r**2 </code></pre> <p>(The newline can be removed and is only there to avoid a scrollbar)</p> <p>Yay! Circle version!</p> <pre><code> $t+=$;= 1|2*sqrt($r** 2-($u-2*$_)**2) ,say$"x($r-$;/2 ).'*'x$;for 0.. ($u=($r=&lt;&gt;)-1|1 );$pi=~say$t* 2/$r**2 </code></pre> <p>For the uninitiated, the long version:</p> <pre><code>#!/usr/bin/perl use strict; use warnings; use feature 'say'; # Read the radius from STDIN my $radius = &lt;&gt;; # Since we're only printing asterisks on lines where y is odd, # the number of lines to be printed equals the size of the radius, # or (radius + 1) if the radius is an odd number. # Note: we're always printing an even number of lines. my $maxline = ($radius - 1) | 1; my $surface = 0; # for ($_ = 0; $_ &lt;= $maxline; $_++), if you wish for (0 .. $maxline) { # First turn 0 ... N-1 into -(N/2) ... N/2 (= Y-coordinates), my $y = $maxline - 2*$_; # then use Pythagoras to see how many stars we need to print for this line. # Bitwise OR "casts" to int; and: 1 | int(2 * x) == 1 + 2 * int(x) my $stars = 1 | 2 * sqrt($radius**2-$y**2); $surface += $stars; # $" = $LIST_SEPARATOR: default is a space, # Print indentation + stars # (newline is printed automatically by say) say $" x ($radius - $stars/2) . '*' x $stars; } # Approximation of Pi based on surface area of circle: say $surface*2/$radius**2; </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POCode Golf - π day
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USmercator
    1. USmercator
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COThat is by far the most unreadable code I've seen in my entire life
      singulars
      1. PO
      1. USChris Marisic
    2. COI guess you've never seen APL then.
      singulars
      1. PO
      1. USPeter Wone
    3. CO...or brainfuck...
      singulars
      1. PO
      1. USlubos hasko
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload