[CraigJPerry]

You read it strictly right to left, weird idea to me but it’s common in the array languages - j and APL do it this way too.

I believe the reasoning is something like Iverson (or maybe Whitney) didn’t like the complexity of PEMDAS in maths so decided on this rule.

[razetime]

Iverson wanted consistent symbols and rules for math notation. So it's math first, then programming language next. Makes it extremely strong with describing algorithms, but gets a bit complicated for programming.