{"id":10409,"date":"2021-02-10T12:36:27","date_gmt":"2021-02-10T17:36:27","guid":{"rendered":"https:\/\/spinor.info\/weblog\/?p=10409"},"modified":"2021-02-10T12:36:27","modified_gmt":"2021-02-10T17:36:27","slug":"glitch","status":"publish","type":"post","link":"https:\/\/spinor.info\/weblog\/?p=10409","title":{"rendered":"Glitch"},"content":{"rendered":"<p>Sometimes, simple programming mistakes make for interesting glitches.<\/p>\n<p>Take this image:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10410\" src=\"https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch.png\" alt=\"\" width=\"500\" height=\"500\" srcset=\"https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch.png 500w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-300x300.png 300w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-150x150.png 150w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-96x96.png 96w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-24x24.png 24w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-36x36.png 36w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-48x48.png 48w, https:\/\/spinor.info\/weblog\/wp-content\/uploads\/2021\/02\/glitch-64x64.png 64w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>No, this is not something that a gravitational lens would produce. Or any lens.<\/p>\n<p>Even-numbered multipoles in a gravitational lens produce images that have fourfold symmetry. This allows me to reduce the amount of computation needed to generate an image, as I only need to generate one quarter; the rest are just copied over.<\/p>\n<p>But this is not true for odd-numbered multipoles. This image was supposed to represent the <em>J<\/em><sub>3<\/sub> multipole, which would yield a triangular shape.<\/p>\n<p>Unfortunately, I generated it accidentally by assuming the symmetries of an even-numbered multipole.<\/p>\n<p>I kind of like the result, even though it is of course scientifically worthless. It still looks neat though.<\/p>\n<fb:like href='https:\/\/spinor.info\/weblog\/?p=10409' send='false' layout='button_count' show_faces='true' width='450' height='65' action='like' colorscheme='light' font='lucida grande'><\/fb:like>","protected":false},"excerpt":{"rendered":"<p>Sometimes, simple programming mistakes make for interesting glitches. Take this image: No, this is not something that a gravitational lens would produce. Or any lens. Even-numbered multipoles in a gravitational lens produce images that have fourfold symmetry. This allows me to reduce the amount of computation needed to generate an image, as I only need <a href='https:\/\/spinor.info\/weblog\/?p=10409' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,36],"tags":[],"class_list":["post-10409","post","type-post","status-publish","format-standard","hentry","category-physics","category-programming","category-3-id","category-36-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/10409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10409"}],"version-history":[{"count":2,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/10409\/revisions"}],"predecessor-version":[{"id":10412,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=\/wp\/v2\/posts\/10409\/revisions\/10412"}],"wp:attachment":[{"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spinor.info\/weblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}