What is the difference between wp.dot() and dot()

[cadop]

In a few places there are calls to a math operation like dot, and in the same function there is wp.dot (same for length).
Are these used for different things, or what goes in to deciding when to use which one?

[mmacklin]

Hi @cadop , there is no difference - currently the wp namespace can be considered 'implicit' inside kernel code for all built-in functions, so using the wp. prefix is optional (but generally preferred).