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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
630,021,795,503,669,200
GalliumYttrium
01/22/2022 21:51:08
isnt it just N(t)
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:51:36
uninhibited like exponential?
0
1
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:51:40
malthusian shit
0
1
395,300,498,552,651,800
stμ₂dying
9923
sebbb
false
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:51:49
thatd be my guess
0
1
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:52:02
N = p_0 e^(rt) sorta deal
0
1
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null
null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
630,021,795,503,669,200
GalliumYttrium
01/22/2022 21:52:25
okay im out
0
1
null
null
null
null
null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:52:26
Ok okay thanks!
1
0
null
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:53:06
Yes this is also correct, just missing half of it, like N(t) = (insert equation here lol)
1
0
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:53:23
idk teachers put some dumb questions onto shit sometimes
0
1
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:53:26
you never know
0
1
null
null
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null
null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:53:27
:KEK:
0
1
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null
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null
null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
630,021,795,503,669,200
GalliumYttrium
01/22/2022 21:53:34
yea i have no idea what uninhibited growth is lol
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:54:32
What do I do since there are no numbers? Is it literally just N(t) = p_0 e^(rt)
1
0
189,360,428,298,666,000
shred
1973
shred
false
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:02
idk assuming this is right then those constants define the model
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:16
p_0 is some initial population that scales e^r0 = 1
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:19
to go through the init pop
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:55:20
Oh wait, do they mean t(N) since it is "N as a function *of* t"?
1
0
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:32
then the rate constant scales the growth
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:36
yea
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:38
no
0
1
558,954,763,190,927,360
safin
5892
safin
false
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:41
N(t)
0
1
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:55:54
Number of mosquitos is a function of time
0
1
558,954,763,190,927,360
safin
5892
safin
false
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:56:04
Okay, makes more sense your way 👍
1
0
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:56:04
although it is one to one :catThink:
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:56:10
oh no
1
0
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:56:14
so the number of mosquitos could be used to measure time
0
1
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205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:56:18
if you are very fast at counting
0
1
189,360,428,298,666,000
shred
1973
shred
false
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:56:22
lol
1
0
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:56:35
Thank you!
1
0
null
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null
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null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
331,558,346,333,224,960
jan Niku
01/22/2022 21:56:37
np
0
1
null
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null
null
205,591
help-1
8149a9e6e7804f87902fa33cc624ba35
708,376,683,031,298,200
Aurelia Rose
01/22/2022 21:57:54
.close
1
0
null
null
null
null
null
205,592
help-1
a270113f22ad4987bc742760432707f9
757,043,579,779,809,300
pennepasta
01/22/2022 22:06:53
Hello! I am having trouble with this problem. I keep getting the same answer whenever I go back and check my answer which is 6 but it seems to be wrong. Am i setting up my equation wrong?
https://cdn.discordapp.c…t_7.04.34_PM.png
Screen_Shot_2022-01-22_at_7.04.34_PM.png
1
0
null
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null
205,592
help-1
a270113f22ad4987bc742760432707f9
757,043,579,779,809,300
pennepasta
01/22/2022 22:07:23
https://cdn.discordapp.c…457/IMG_1445.jpg
IMG_1445.jpg
1
0
null
null
null
null
null
205,592
help-1
a270113f22ad4987bc742760432707f9
312,559,012,346,331,140
xdk1235
01/22/2022 22:10:06
the integral seems right
0
1
null
null
null
null
null
205,592
help-1
a270113f22ad4987bc742760432707f9
312,559,012,346,331,140
xdk1235
01/22/2022 22:10:13
maybe you made a mistake somewhere while evaluating it?
0
1
null
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null
205,592
help-1
a270113f22ad4987bc742760432707f9
757,043,579,779,809,300
pennepasta
01/22/2022 22:13:28
Should I be evaluating from 4 to -4 instead?
1
0
null
null
null
null
null
205,592
help-1
a270113f22ad4987bc742760432707f9
485,903,210,272,391,200
dldh06
01/22/2022 22:13:48
You did math wrong
0
1
null
null
null
null
null
205,592
help-1
a270113f22ad4987bc742760432707f9
485,903,210,272,391,200
dldh06
01/22/2022 22:13:57
I used a calculator and did not get 6
0
1
395,300,498,552,651,800
stμ₂dying
9923
sebbb
false
205,592
help-1
a270113f22ad4987bc742760432707f9
757,043,579,779,809,300
pennepasta
01/22/2022 22:16:51
Arighty! Thank you!
1
0
null
null
null
null
null
205,592
help-1
a270113f22ad4987bc742760432707f9
757,043,579,779,809,300
pennepasta
01/22/2022 22:17:01
.close
1
0
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:26:15
Matrix M minus the Identity matrix equal to P matrix
1
0
395,300,498,552,651,800
stμ₂dying
9923
sebbb
false
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:26:41
M - I = p
0
1
null
null
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:26:50
:this:
1
0
null
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null
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:27:07
That form you gave is augmented matrix form
1
0
null
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205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:27:11
^
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:27:19
technically if p is a vector
0
1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:27:31
it's used to solve (M-I)x = p
0
1
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null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:27:42
omg
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:27:46
It's equal
1
0
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:27:51
idk how
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:28:33
https://cdn.discordapp.c…5666/unknown.png
unknown.png
1
0
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:28:39
I just found that from google
1
0
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:28:49
Above is the equation form
1
0
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:28:52
I get that
0
1
null
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null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:28:57
Bottom is augmented form
1
0
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:29:18
So this here is augmented form
1
0
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:29:22
not sure why you guys sad equal then
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:29:27
ah wait sorry disregard M-I = p
0
1
null
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null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:29:33
what is the order of operations
0
1
null
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:29:37
i meant to say equivalent
0
1
null
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:29:44
there's no operation, that's the matrix as is
0
1
null
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null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:29:56
no you write M-I on the left side
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:30:04
and augment p to the right
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:30:15
idk how that is supposed to work
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:30:20
compute M-I
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:30:24
augment p to the right
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:30:47
you can augment p first too, sure
0
1
null
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null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:30:49
So my graphic that I sent, the values on the left of that vertical bar is M - I
1
0
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null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
485,903,210,272,391,200
dldh06
01/22/2022 22:31:01
On the right, would be p
1
0
395,300,498,552,651,800
stμ₂dying
9923
sebbb
false
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:31:16
[(M-I)|p]
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:31:19
ok
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:31:21
let me try
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:32:43
some books dont write []
0
1
null
null
null
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:32:48
it's really just a notation
0
1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:33:18
umm i would say the question isnt valid but
0
1
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help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:33:20
you can just think yes yeah
0
1
null
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:36:12
nope
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:36:16
wtf
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:36:25
what are you implementing
0
1
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help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:38:01
numpy?
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:38:13
and sympy
0
1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:38:15
both
0
1
null
null
null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:38:22
sympy to row reduce
0
1
null
null
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null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:38:42
[M-I|p] is the broken part?
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1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:38:49
yes
0
1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:39:00
how did you implement it
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1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:39:26
wrong
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1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:39:33
there really is no other way of saying it
0
1
null
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null
null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:39:36
nothing works
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1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:40:53
```python >>> import numpy as np >>> M = np.array([[1, 2], [3, 4]]) >>> n = np.array([5, 6]) >>> M array([[1, 2], [3, 4]]) >>> n array([5, 6]) >>> np.concatenate((M, n[:, np.newaxis]), axis=1) array([[1, 2, 5], [3, 4, 6]]) ```
0
1
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null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:40:57
does that help
0
1
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null
null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:41:22
umm you just have to copy paste my code
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1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:41:57
let me try
0
1
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null
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:42:13
you can do `np.hstack((M, n[:, np.newaxis]))` too but i personally hate hstack
0
1
395,300,498,552,651,800
stμ₂dying
9923
sebbb
false
205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 22:44:05
I mean the code runs
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1
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205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:50:54
`np.concatenate((M - np.eye(2), p[:, np.newaxis]), axis=1)`
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1
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205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
312,559,012,346,331,140
xdk1235
01/22/2022 22:59:46
whats your M and p
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1
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205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 23:02:19
M is correct
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1
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205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 23:02:31
p is
0
1
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205,593
help-1
65d70bec43b84cdb9431cf291a290a2f
321,074,029,291,372,540
Jason_Bjorn
01/22/2022 23:03:16
I got p to be
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1
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