I've come across two versions of writing a capital G and a capital J in cursive. I cannot understand which one is correct because Wikipedia shows that the capital G from my textbook is, in fact, the capital J from Wikipedia and vice-versa.
Is it a mistake in my textbook or one can use them interchangeably and just needs to be consistent when deciding which one to use as a capital letter?
Here are examples from my textbook.
UPDATE
Thanks. I've corrected my textbook.










Qis written ever since I learned cursive in the 3º grade. I love the capitalGfrom General Mills cereal boxes: https://en.wikipedia.org/wiki/General_Mills#/media/File:General_Mills_logo.svg – Mark Stewart Nov 03 '19 at 21:43