I don’t really care how many representations a number has, so long as those representations make sense. 2 = 02 = 2.0 = 1+1 = -1+3 = 8/4 = 2x/x. That’s all fine, we can use the basic rules of decimal notation to understand the first three, basic arithmetic to understand the next three, and basic algebra for the last one.
0.999… = 1 requires more advanced algebra in a pointed argument, or limits and infinite series to resolve, as well as disagreeing with the result of basic decimal notation. It’s steeped in misdirection and illusion like a magic trick or a phishing email.
I’m not blaming mathematicians for this, I am blaming teachers (and popular culture) for teaching that tools are inflexible, instead of the limits of those systems.
In this whole thread, I have never disagreed with the math, only it’s systematic perception, yet I have several people auguing about the math with me. It’s as if all math must be regarded as infinitely perfect, and any unbelievers must be cast out to the pyre of
SmartmanApps@programming.dev 4 months ago
Very rarely wrong actually.
The only people who think there’s something wrong with PEMDAS are people who have forgotten one or more rules of Maths.
barsoap@lemm.ee 4 months ago
www.youtube.com/watch?v=lLCDca6dYpA
…oh wait I remember that Unicody user name. It’s you. Didn’t I already explain to you the difference between syntax and semantics until you gave up. I suggest we don’t do it again but instead, you review the thread.
SmartmanApps@programming.dev 4 months ago
Well, you seem to have forgotten that the woman in that video isn’t a Maths teacher, which would explain why she’s forgotten the rules of The Distributive Law and Terms.
I didn’t give up, you did.
I suggest you check some Maths textbooks, instead of listening to a Physics major.
barsoap@lemm.ee 4 months ago
There! Syntax. We went over this. Seriously, we did, and, no, I got the last word.
I can check any textbook from any discipline. You know what? I could even ask my school teachers. Because I’m not American and I wasn’t taught shit that doesn’t match up with what professionals are doing.
You’re just another yank drunk on jingoism, “We do it like that, therefore, it is right”.
SmartmanApps@programming.dev 4 months ago
P.S. you proved my point