What is the correct result?

[Matt Agajanian]

(04-21-2024 09:49 PM)Steve Simpkin Wrote:  

(04-21-2024 07:43 PM)Matt Agajanian Wrote:  Hi all.
Here’s another question that popped up. Since TI postures itself as the pinnacle of calculators in education, how is it that at what is their current order of hierarchy, they can claim that their way is the right hierarchy when Casio’s, Sharp’s, and other hierarchies are improper evaluation methods?
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That is a hard argument for TI (or Casio) to make considering "their way" has changed over the years. I am sure in both cases the changing method used to interpret implied multiplication and order of hierarchy was driven by educational customer demand based on regional customs.

Solution 11773: Implied Multiplication Versus Explicit Multiplication on TI Graphing Calculators.
TI example
Casio example

More discussions on this subject

I see. That TI technote explains that they made a change. But why didn’t the technote make any explanation as to why they did this? So, why the changeover?