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/sci/ - Science & Math

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15275831 No.15275831 [Reply] [Original]

Why do mathematicians scream so much when PI is approximated to 3? It is a pretty good approximation, it's only 5% off the true value.

>> No.15275833
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15275833

>>15275831
>only 5% off the true value.

>> No.15275835
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15275835

>>15275833
>%

>> No.15276226

>>15275831
>mathematicians scream so much
How much is "so much", five-percenter?

>> No.15276269
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15276269

>>15275831

>Be me
>Architect
>Client has a new job for me
>"Whats the job?"
>Need to build a bridge
>Need pi to calculate some shit
>No room for a margin of error (not even 5%) this shit needs to be sturdy as fuck
>Decide that [math]\pi \approx 3 [/math] is good enough kek
>All done with the calculations
>Plans are looking beautiful
>Send these plans to construction and they start building
>Construction looks at the plans and see nothing wrong
>"The architect knows what he's doing" they say

6 months later

>All done
>Bridge is beautiful
>Given the honor of driving across it first
>Hop into my Toyota Corolla
>Feeling prideful
>I'm on the bridge now
>The bridge then spontaneously combusts all around me and I fucking die

This is what happens when you don't calculate pi OP.

>> No.15276276

look at a regular hexagon, and then a circle.
If π=3 these are the same shape.

>> No.15276280

>>15276276
>hexes
it's good enough for /tg/

>> No.15276290

>>15276269
>We just don't the budget for accurate pi
What do

>> No.15276301
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15276301

>>15276290

>> No.15277489

>>15275831
i think what is stranger is when some arbitrarily created equation gives 3.141682... and they talk about it like it's some miracle of the universe because it "almost" equals PI

>> No.15277525

>>15277489
Reminds me how basic rhyming is now considered to be a lyrical genius in some music circles.

>> No.15280081

they think real numbers are a good system or something

>> No.15280114

22/7 is close enough for me

>> No.15280127

>>15275831
.2 off from the true value
https://en.wikipedia.org/wiki/Indiana_Pi_Bill

>> No.15280132

>>15275833
You'd be shocked at how much serious scientific and technical work is done with measuring devices with +-5% error

>> No.15280136

>>15275833
Brought to you by the consensus that .999... = 1.

>> No.15280205

There are 1049 metres in a kilometre.
It's a good approximation, because it's less than 5% off from the correct value

>> No.15280277
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15280277

>> No.15280284

>>15275831
Because if you did that you'd also be able to round i to 0 which would never do.
Before we know it, infinity would be rounded to an integer and all heck would break loose.

>> No.15280287
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15280287

>>15280132
Indeed.