The ROT() function encrypts text by replacing each letter with the one 13 places along in the alphabet. If the 13th position is beyond the letter Z, it begins again at A (rotation).
De funksje ROT () kodearret tekst troch elke letter te ferfangen troch in oare letter dy' t 13 plakken fierder yn it alfabet stiet. As de 13e posysje foarby de Z leit, dan giet de funksje fierder by A (rotaasje).