/sci/ - Science & Math

[Anonymous No.9660992]

>write pi on math test
>get marked wrong
>"pi is not a number"

[Anonymous No.9660993]

>he thinks pi is a number

It's more of a rough approximation, bud.

Next.

[Anonymous No.9660999]

>>9660992
Lol he teaches at my uni and he’s available for consultation. I want to ask him my brainlet questions

[Anonymous No.9661005]

>>9660993
>It's more of a rough approximation, bud.

...So, a number? You have to understand all rough approximations are inherently numbers.

Next.

[Anonymous No.9661006]

>>9661005
Pi is not a number because it will never be exact.

Deal with it pleb.

[Anonymous No.9661009]

>>9660999
I didn't realize he was Australian

Do you at least watch his lectures via YouTube? Don't bother him with brainlet questions unless they're phrased in a well thoughtout, non-brainlet way.

[Anonymous No.9661013]

>>9660992
It's not a number.

If I say c = 1, that doesn't make "c" a number.

[Anonymous No.9661014]

>>9661006
lol, nice try kiddo.

>0.99999999999........=1

In applications that require a terminating decimal, sure - it's not exact - but neither is anything else. All applied math is approximations, pi is no exception. precise units do not exist in nature, nor does Euclidean geometry, or a rational number line.

[Anonymous No.9661016]

>>9661013
uhh yeah it does you fucking retard, just because you're used to being assigned alphabetic value doesn't mean you can't simply define c as 1. You could even define c as 3, and define it as the sum of a + b, where a is defined as 1 and b is 2, these are all NUMBERS you absolute brainlet

[Anonymous No.9661020]

>>9661013
I'm honestly shocked you believe "1" is an inherently special symbol used to define numbers. I haven't seen this level of brainlet in awhile.

Believe it or not, "1" isn't really a number, it's a symbol used to represent the quantity that is practically inseparable from it's symbolic form (so long as you grew up using Arabic numerals). It's a character assigned to represent 0 incremented once, where 0 is simply a symbol to represent an absence of quantity. A unit, an atom, a concrete quantity, but the symbol is an abstraction, just like 'c'

[Anonymous No.9661023]

>>9660993

Actually, pi is not an approximation.
It's is the exact ratio of a circle's circumference to its diameter by definition.
That's anything but an approximation. It's quite a precise value.

[Anonymous No.9661034]

>>9661023
I agree but I think his point is that in applications, it's approximated, as I tried to explain here: >>9661014

[Anonymous No.9661047]

>>9660992
>write 2pi on math test
>get half credit
>"tau makes more sense than pi"

[Anonymous No.9661059]

>>9660999
how is unsw

[Anonymous No.9661103]

>Write sqrt(2) on my test
>teacher calls me a fag
>two days later get an email
>It says they need to meet me in office hours the next day to go over possible plagiarism
>Show up
>professor sternly hands me a piece of paper
>all it says is sqrt(you) = r*a*fag
>they burst into laughter
>I rush out trying to hide my tears
>Hear them yell 'don't be so irrational!' From behind me.

[Anonymous No.9661453]

>>9661059
I don’t have a comparison point. Was impressed that one of the lecturers offered to lend me some of his books on applications of what we were learning.
Don’t like the way that we learn in a heuristic rather than a first principles up way, at least at this stage (near the start). Don’t like heuristics in general. We also don’t get a lot of applications. Learn by context, so I like to learn the thing I’m learning by learning the thing that it’s emergent from then learning what emerges out of it. Don’t like just learning it.

>>9661009
I do and I appreciate them. I was just joking. But I might ask him some questions about ideas like infinity (not convinced it exists, or that it’s a mathematical idea) that I genuinely don’t know about.

[Anonymous No.9661587]

>>9661006
Pi is an irrational number. It's still a number.

[Anonymous No.9663698]

>>9661014
Precise units do exist in nature, but only at the fundamental level and then mathematical structures being stacked one over the other lead to less precise shit.

[Anonymous No.9663767]

>>9663698
no, they don't

[Anonymous No.9664349]

Fuck. I despise number theory

[Anonymous No.9664415]

>>9660993
>total brainlet
pi IS a number, a transcendental number.
it cant be expressed exactly in base 10 but that doesnt mean it can not be expressed exactly in another numbering system nor does it make it not a number.
it can be expressed exactly in base pi numbering system without approximation, and in that numbering system all base 10 numbers become transcendental

[Anonymous No.9664432]

>>9661006
>Pi is not a number because it will never be exact.
>>9661013
>It's not a number.
brainlets

[Anonymous No.9664479]

>>9661009
He's a leaf but he lives in australia

[Anonymous No.9664606]

>>9664432
>an infinite sum is exact
Define exact, brainlet