What is arithmancy?

Arithmancy is the study of magical properties of numbers, its a way of telling the future (like numerology) it includes number charts that are really complicated as well, its like people believe that number patterns can predict the future (PLEASE NO ONE GET FREAKED bởi THIS) but its like people saying they know when the apocalypse will happen because of number patterns

Arithmancy is a Hogwarts subject taught bởi Professor Vector. It comes from the Greek arithmo, meaning "number" and mancy, meaning "prophecy." This subject is taught in Classroom 7A, on the Castle's seventh floor. It is Hermione Granger's favourite subject and involves complicated number charts, but nothing else is known about the subject.

It is apparently a thêm accurate (or at least thêm accepted) way of predicting the future, similar to an obscure but existing hobby of numerology - the belief that number patterns existing in real life can be calculated to give information regarding the future. This would make it a thêm sensible version of Divination, at least to Hermione's taste, in that it does the same thing through thêm appropriate hoặc exacting means. The accuracy of this information is unknown, however.