Under 2.3 Non-Scalar evaluation, 2.2 we say:

"Unary/Binary operators other than range and union can be considered functions taking scalar arguments for the purposes of this discussion. Similarly inline arrays and references are interchangeable."

This occurs under calculations with non-scalar inputs to scalar functions.

Suggest: "Unary/Binary operators, other than range and union, follow the rules for scalar functions when passed non-scalar values."

I have no idea what "similarly" means in the final sentence. Suggest: "Inline arrays and references are interchangeable."