Since Matematixian needs to be compatible with English, Mandarin Chinese and Malay due to Matematixia rising up from the Malaysian and Indonesian remnants, I removed some letters that made sounds that were incompatible with at least one of the three languages. Also, it's now renamed to Malayonesian.
Notes: I forgot to include <ʃ> and <þ>. <ʃ> became <x>, but <þ> was removed. <q> makes the /tʃ/ sound, and <c> makes the /ts/ sound.