Can someone please explain this? I'm guessing I don't understand order of execution.

When perusing >>fibonacciSequence, I get a proper result, but I don't understand why when looking at the code.��

Consider this��fragment...

prevTotal := 0.
currTotal := 1.
currTotal := prevTotal + (prevTotal := currTotal).

My understanding *was* that parentheses are executed first.��

(prevTotal := currTotal) - assigns and returns 1

currTotal := prevTotal��+ (1)

and since prevTotal = 1

currTotal := 1��+ (1)

prevTotal = 1.

currTotal = 2.

Yet what appears to be happening is...��

prevTotal = 0

currTotal := 0 + (prevTotal��:= currTotal)

then the parentheses...

currTotal := 0 + (1)

prevTotal = 1.

currTotal = 1.

Care to school me?

Thanks!

Russ