2023-08-28 06:28 UTC
6/6
Cos the other mistake I see is people insisting left-to-right is a rule, and ignore order of operations! No, order of operations is the rule, and left to right is a rule WITHIN Division, and other operations - like add and subtract, and multiply - can be done in any order, provided you maintain left associativity for all signs. i.e. within add and subtract +5-4+1 can be done as +1-4+5, or even +5+1-4, but definitely never +1+4-5 or +5-(4+1).
More on 1917 next week...
Replies (1)
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@SmartmanApps@dotnet.social 2023-09-04 05:34
1/7 #MathsMonday 1917 (ii) - Lennes' letter (Terms and operators) I've seen many refer to https://www.jstor.org/stable/2972726 as a change in #Mathematics precedence rules, and yet nothing at all actually changed! It does show that 100 years ago though, even then there were people #LoudlyNotUnderstandingThings #Math terms and rules! 😂 On page 93 he says "it is agreed that each symbol applies only to the term immediately following it" which shows he understands #Maths Terms and Left Associativity...