{"id":6586,"date":"2026-04-13T11:50:38","date_gmt":"2026-04-13T11:50:38","guid":{"rendered":"http:\/\/the-codest.localhost\/dictionary\/floating-point\/"},"modified":"2026-04-13T11:50:50","modified_gmt":"2026-04-13T11:50:50","slug":"fljotandi-kommu","status":"publish","type":"dictionary","link":"https:\/\/thecodest.co\/is\/dictionary\/floating-point\/","title":{"rendered":"Flj\u00f3tandi kommu"},"content":{"rendered":"

Flj\u00f3tandi kommu<\/h1>\n

Flj\u00f3tandi kommut\u00f6lur eru g\u00f6gn<\/a> Ger\u00f0 sem notu\u00f0 er \u00ed t\u00f6lvuforritun til a\u00f0 t\u00e1kna raunt\u00f6lur me\u00f0 brei\u00f0u svi\u00f0i st\u00e6r\u00f0a og n\u00e1kv\u00e6mni. H\u00fan er tv\u00edleturform af v\u00edsindalegu formi, sem samanstendur af merki\u00adbita, mant\u00edsu og v\u00edsitungli. Mant\u00edsan t\u00e1knar markt\u00e6ku t\u00f6lustafina \u00ed t\u00f6lu, en v\u00edsitungli\u00f0 t\u00e1knar st\u00e6r\u00f0 hennar.<\/p>\n

Flj\u00f3tandi kommut\u00f6lur eru nota\u00f0ar \u00ed fj\u00f6lm\u00f6rgum forritum, \u00fear \u00e1 me\u00f0al \u00ed v\u00edsindalegum hermunum, fj\u00e1rm\u00e1lareikningum og t\u00f6lvugraf\u00edk. \u00de\u00e6r eru nau\u00f0synlegar til a\u00f0 t\u00e1kna gildi sem ekki er h\u00e6gt a\u00f0 t\u00e1kna n\u00e1kv\u00e6mlega me\u00f0 heilt\u00f6lum, svo sem \u00f3hlutfalla t\u00f6lu og tugabrot.<\/p>\n

Einn helsti kostur flj\u00f3tandi t\u00f6lu er a\u00f0 \u00fe\u00e6r geta t\u00e1kna\u00f0 breitt svi\u00f0 gilda me\u00f0 tilt\u00f6lulega litlu minnispl\u00e1ssi. Hins vegar eru \u00fe\u00e6r ekki alltaf n\u00e1kv\u00e6mar, og hringlaga villur geta komi\u00f0 upp \u00ed \u00fatreikningum sem fela \u00ed s\u00e9r flj\u00f3tandi t\u00f6lu. \u00deessar villur geta safnast upp me\u00f0 t\u00edmanum og leitt til \u00f3n\u00e1kv\u00e6mni \u00ed \u00fatreikningum.<\/p>\n

\u00dea\u00f0 eru nokkur mismunandi flj\u00f3tandi kommut\u00f6luf\u00f6rm, \u00fear \u00e1 me\u00f0al einn- og tv\u00f6faldur n\u00e1kv\u00e6mni. Einfaldri n\u00e1kv\u00e6mni flj\u00f3tandi kommut\u00f6lur nota 32 bita til a\u00f0 t\u00e1kna talan, en tv\u00f6faldri n\u00e1kv\u00e6mni flj\u00f3tandi kommut\u00f6lur nota 64 bita. Val \u00e1 formi fer eftir forritinu og kraf\u00f0ri n\u00e1kv\u00e6mni.<\/p>\n

Almennt s\u00e9\u00f0 eru flj\u00f3tandi kommut\u00f6lur \u00f6flugt t\u00e6ki til a\u00f0 t\u00e1kna raunt\u00f6lur \u00ed t\u00f6lvuforritun. \u00de\u00f3 a\u00f0 \u00fe\u00e6r s\u00e9u ekki alltaf n\u00e1kv\u00e6mar eru \u00fe\u00e6r nau\u00f0synlegar fyrir m\u00f6rg forrit og m\u00e1 nota \u00fe\u00e6r \u00e1 \u00e1hrifar\u00edkan h\u00e1tt me\u00f0 vark\u00e1rri \u00edhugun \u00e1 takm\u00f6rkunum \u00feeirra.<\/p>","protected":false},"excerpt":{"rendered":"

Kynntu \u00fe\u00e9r fj\u00f6lh\u00e6fan gagnat\u00fdpu sem nota\u00f0ur er \u00ed t\u00f6lvuforritun til a\u00f0 t\u00e1kna raunt\u00f6lur me\u00f0 mismunandi st\u00e6r\u00f0um og n\u00e1kv\u00e6mni \u2013 flj\u00f3tandi kommut\u00f6lur.<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6586","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"\nFloating Point - The Codest<\/title>\n<meta name=\"description\" content=\"Learn about the versatile data type used in computer programming to represent real numbers of various magnitudes and precision - Floating Point.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/is\/ordabok\/fljotandi-kommu\/\" \/>\n<meta property=\"og:locale\" content=\"is_IS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Floating Point\" \/>\n<meta property=\"og:description\" content=\"Learn about the versatile data type used in computer programming to represent real numbers of various magnitudes and precision - 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