/sci/ - Science & Math » Thread #11165877

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Anonymous Thu 21 Nov 14:29:43 2019 No.11165877 View Reply Original Report

Quoted By: >>11165885 >>11165887 >>11166738 >>11169104

You can't solve e^x + ln(x) = y for x. Not because it hard, because it's impossible. So, math is incomplete after all?

Anonymous

Anonymous Thu 21 Nov 2019 14:33:20 No.11165885 Report

Quoted By: >>11166067

>>11165877
1) you are a retarded troll
2) I hope someone posts a similar "only 10% can solve this" picture with fruit aboit homologies to save this shitty thread

Anonymous

Anonymous Thu 21 Nov 2019 14:35:15 No.11165887 Report

Quoted By: >>11165958

>>11165877
f(x)=exp(x)+log(x) intersects the x axis at x=0.299...

just because there isn't a closed form function that is the inverse of f(x), doesn't mean there's anything wrong with math. by using an iterative process like newton's method, you can find the value of x for y=0 to arbitrary precision

Anonymous

Anonymous Thu 21 Nov 2019 15:02:55 No.11165958 Report

Quoted By: >>11165967 >>11165981 >>11165996 >>11165999 >>11166971 >>11168547 >>11169026 >>11169194

>>11165887
>just because there isn't a closed form function that is the inverse of f(x), doesn't mean there's anything wrong with math.
The whole point of math is to find closed form inverse functions. Newtons method IS iterative process, so it is extremally inifficient and not allow to analyze inverse of the function even tho it obviously exists.

Anonymous

Anonymous Thu 21 Nov 2019 15:06:54 No.11165967 Report

Quoted By:

>>11165958
>The whole point of math is to find closed form inverse functions.
Lmao are you 12?

Anonymous

Anonymous Thu 21 Nov 2019 15:12:40 No.11165981 Report

Quoted By:

>>11165958
>The whole point of math is to find closed form inverse functions.
No, it fucking isnt
>extremally inifficient
i dont know what this means

Anonymous

Anonymous Thu 21 Nov 2019 15:18:46 No.11165996 Report

Quoted By:

>>11165958
Solve e^x=y without inventing a new function, i.e. without ln( )
Because that’s basically what you’re asking, we could easily invent a new function that could isolate the x here but it would be a very uninteresting fiction property wise so why would you.

Anonymous

Anonymous Thu 21 Nov 2019 15:19:49 No.11165999 Report

Quoted By: >>11168457

>>11165958
Plz try to solve x^2=2 without iterative process

Anonymous

Anonymous Thu 21 Nov 2019 15:30:44 No.11166017 Report

Quoted By: >>11166018

>gnuplot f(x) = exp(x)+log(x)
>gnuplot plot f(x)
its just vertical line

Anonymous

Anonymous Thu 21 Nov 2019 15:31:25 No.11166018 Report

Quoted By:

>>11166017
fix your code, f(x) aint a vertical line

Anonymous

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Anonymous Thu 21 Nov 2019 15:56:32 No.11166067 Report

Quoted By: >>11166083 >>11168171 >>11168558 >>11169007

>>11165885
I got you buddy

Anonymous

Anonymous Thu 21 Nov 2019 16:04:36 No.11166083 Report

Quoted By: >>11167552

>>11166067
God this kills me

Anonymous

Anonymous Thu 21 Nov 2019 23:03:19 No.11166738 Report

Quoted By:

>>11165877
Can't I just assume pear is what I want?

Anonymous

Anonymous Fri 22 Nov 2019 01:33:48 No.11166971 Report

Quoted By: >>11167175

>>11165958
ok boomer

Anonymous

Anonymous Fri 22 Nov 2019 03:00:13 No.11167175 Report

Quoted By:

>>11166971
le epic maymay XDDDDDDDDD

Anonymous

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Anonymous Fri 22 Nov 2019 06:02:59 No.11167552 Report

Quoted By: >>11167571 >>11167616 >>11169007

>>11166083

Tuba Jam

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Tuba Jam Fri 22 Nov 2019 06:21:07 No.11167571 Report

Quoted By: >>11167614

>>11167552
Can't forget this classic

Anonymous

Anonymous Fri 22 Nov 2019 06:46:29 No.11167614 Report

Quoted By: >>11167637

>>11167571
Is there actually a solution to this? I wrote a little program in matlab, am currently searching.

Anonymous

Anonymous Fri 22 Nov 2019 06:48:51 No.11167616 Report

Quoted By:

>>11167552
>apple=2
>pie=pi
>macaroni=mascheroni
cute!

Anonymous

Anonymous Fri 22 Nov 2019 07:01:52 No.11167637 Report

Quoted By: >>11167640

>>11167614
Apple is 4373612677928697257861252602371390152816537558161613618621437993378423467772036, banana is 36875131794129999827197811565225474825492979968971970996283137471637224634055579, pineapple is 154476802108746166441951315019919837485664325669565431700026634898253202035277992.

Anonymous

Anonymous Fri 22 Nov 2019 07:03:32 No.11167640 Report

Quoted By: >>11169004

>>11167637
holy fuck, i dont know if i have enough RAM to verify this

Anonymous

Anonymous Fri 22 Nov 2019 14:12:13 No.11168171 Report

Quoted By:

>>11166067
Thanks mate, it's perfect

Anonymous

Anonymous Fri 22 Nov 2019 16:15:52 No.11168457 Report

Quoted By: >>11168463

>>11165999
uhh square both sides? x = sqrt(2). here's your closed form solution bro

Anonymous

Anonymous Fri 22 Nov 2019 16:20:37 No.11168463 Report

Quoted By:

>>11168457
>sqrt(2)
and what does this equal

Anonymous

Anonymous Fri 22 Nov 2019 17:08:57 No.11168547 Report

Quoted By:

>>11165958
>The whole point of math is to find closed form inverse functions
ha

Anonymous

Anonymous Fri 22 Nov 2019 17:14:19 No.11168558 Report

Quoted By:

>>11166067
You don't need all that pizza jazz, it's just asking about the Z_2 cohomology of real projective space, which is pretty standard stuff.

Anonymous

Anonymous Fri 22 Nov 2019 21:16:28 No.11169004 Report

Quoted By:

>>11167640
Theres a quota post you can find explaing the answer if you Google around for "elliptic curves 95% cant solve this meme" or something like that

Anonymous

Anonymous Fri 22 Nov 2019 21:17:37 No.11169007 Report

Quoted By: >>11169029 >>11169169

>>11167552
>>11166067
Someone needs to make one of the Riemann hypothesis

Anonymous

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Anonymous Fri 22 Nov 2019 21:22:03 No.11169020 Report

Quoted By: >>11169120 >>11169307

This one isn’t so hard to get, but it still makes me chuckle.

Anonymous

Anonymous Fri 22 Nov 2019 21:26:11 No.11169026 Report

Quoted By: >>11169230

>>11165958
>Newtons method is extremely inefficient

What are you going on about? We use it all the time for load flow analysis and if im not mistaken (im no computer scientist) its O(n)

Anonymous

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Anonymous Fri 22 Nov 2019 21:26:45 No.11169029 Report

Quoted By:

>>11169007
Ive got this, at least

Anonymous

Anonymous Fri 22 Nov 2019 21:54:03 No.11169104 Report

Quoted By:

>>11165877
Define fuckOP(y) = exp(y) + log(y). Then x = fuckOP(y). Easy.

Anonymous

Anonymous Fri 22 Nov 2019 22:01:39 No.11169120 Report

Quoted By:

>>11169020
$e+\pi=\frac{n}{m}\;\;\;\;\;n,m\in\mathbb{Z}$
Nice bait here.

Anonymous

Anonymous Fri 22 Nov 2019 22:22:03 No.11169169 Report

Quoted By:

>>11169007
Literally one of the posts you answered too is the RH (hint: its not the one about the cohomology of RPn)

The by far best one is still the classical ellipitc curve one, mimicks the meme problems the best and has a nice level of difficulty

Anonymous

Anonymous Fri 22 Nov 2019 22:34:15 No.11169194 Report

Quoted By:

>>11165958
You made the semi-retarded kids rage today.

Good job.

Anonymous

Anonymous Fri 22 Nov 2019 22:47:31 No.11169230 Report

Quoted By:

>>11169026
It's actually O(log n), which is even better.

Anonymous

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Anonymous Fri 22 Nov 2019 23:29:35 No.11169307 Report

Quoted By: >>11169431

>>11169020
mmm easy af

Anonymous

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Anonymous Sat 23 Nov 2019 00:22:54 No.11169431 Report

Quoted By:

>>11169307

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