This is a section about Linear algebra!

Linear algebra is a very important subject about which there is a lot to say.

For example, this sentence. And then another one.


Linear algebra

This is a section about Fundamental theorem of calculus!

Fundamental theorem of calculus is a very important subject about which there is a lot to say.

For example, this sentence. And then another one.


Fundamental theorem of calculus

Test data 14

Here's an example of the chain rule. Suppose we want to calculate:
$$
\dv{e^2x}{x}
$$
So we have:
$$
f(x) = e^x \\
g(x) = 2x
$$
and so:
$$
f'(x) = e^x \\
g'(x) = 2
$$
Therefore the final result is:
$$
f'(g(x))g'(x) = e^{2x} 2 = 2 e ^{2x}
$$


Chain rule

Synthetic data

Self-driving car

Data

Information

{c}

https://cirosantilli.com/linux-kernel-module-cheat/#p51 (https://raw.githubusercontent.com/cirosantilli/linux-kernel-module-cheat/a0d6fa15a207cb40cd8ce090c77aa9b55d7605a6/README.adoc[permalink])

* screen: 15.6 inches, 16:9
* 2022-01-04 updated firmward after noticing that <ubuntu 21.10 does not wake up from suspend> seemed to happen every time when not connected to external power. `dmidecode` diff excerpt:
  ``
   BIOS Information
          Vendor: LENOVO
  -       Version: N1UET40W (1.14 )
  -       Release Date: 09/28/2017
  +       Version: N1UET71W (1.45 )
  +       Release Date: 07/18/2018
  ``
  used the "Ubuntu Software" GUI as mentioned at: https://support.lenovo.com/gb/en/solutions/ht510810-how-to-do-software-updates-linux[]. Kudos for making this accessible to newbs.

  After doing that, another update became available to: 0.1.56, clicked it and was much faster than the previous one, and didn't auto reboot. After manual reboot, `dmidecode` diffed again:
  ``
   BIOS Information
          Vendor: LENOVO
  -       Version: N1UET71W (1.45 )
  -       Release Date: 07/18/2018
  +       Version: N1UET82W (1.56 )
  +       Release Date: 08/12/2021
  ``
  plus a bunch of other lines.

* 2021-06-05 upgraded to <Ubuntu> 21.04 with a clean install from an ISO. Selected
  * "Minimal installation"
  * "Erase disk and install Ubuntu". Notably, this erased the <Microsoft Windows> that came with the computer and was never used not even once
  * "Erase disk ans use ZFS"
  * Encrypt the new Ubuntu installation for security
  After this, the GUI felt fast, who would have thought that erasing a bunch of stuff would make the system faster!

  `lsblk` contains:
  ``
  zd0               230:0    0   500M  0 disk
  └─keystore-rpool  253:0    0   484M  0 crypt /run/keystore/rpool
  nvme0n1           259:0    0 476.9G  0 disk
  ├─nvme0n1p1       259:1    0   512M  0 part  /boot/efi
  ├─nvme0n1p2       259:2    0     2G  0 part
  │ └─cryptoswap    253:1    0     2G  0 crypt
  ├─nvme0n1p3       259:3    0     2G  0 part
  └─nvme0n1p4       259:4    0 472.4G  0 part
  ``
  and `lsblk -f`:
  ``
  zd0               crypto_LUKS 2
  └─keystore-rpool  ext4        1.0   keystore-rpool
  nvme0n1
  ├─nvme0n1p1       vfat        FAT32
  ├─nvme0n1p2       crypto_LUKS 2
  │ └─cryptoswap
  ├─nvme0n1p3       zfs_member  5000  bpool
  └─nvme0n1p4       zfs_member  5000  rpoo
  ``

  Then:
  ``
  grep '[rb]pool' /proc/mounts
  ``
  contains:
  ``
  rpool/ROOT/ubuntu_uvs1fq / zfs rw,relatime,xattr,posixacl 0 0
  rpool/USERDATA/ciro_czngbg /home/ciro zfs rw,relatime,xattr,posixacl 0 0
  rpool/USERDATA/root_czngbg /root zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/srv /srv zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/usr/local /usr/local zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/games /var/games zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/log /var/log zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib /var/lib zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/mail /var/mail zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/snap /var/snap zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/www /var/www zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/spool /var/spool zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/AccountsService /var/lib/AccountsService zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/NetworkManager /var/lib/NetworkManager zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/apt /var/lib/apt zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/dpkg /var/lib/dpkg zfs rw,relatime,xattr,posixacl 0 0
  bpool/BOOT/ubuntu_uvs1fq /boot zfs rw,nodev,relatime,xattr,posixacl 0 0
  ``
  which gives an idea of how the above map to mountpoints.

  Had two GUI freezes since installation, a fixed images shows no matter what I do, possibly graphics only, but impossible to tell (next time I'll try SSH access). No <Nvidia> drivers installed yet.

2020-06-06: dropped some lemon juice on the bottom left of touchpad. Bottom left button not working anymore... I'm an idiot. There are many other alternatives, but very aggravating, I'll replace it for sure. Can't find the exact replacement part or any videos showing its replacement online easliy, dang. For the T430: https://www.youtube.com/watch?v=F3lzV9uXRjU Asked at: https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile-Workstations/P51-left-bottom-button-below-trackpad-mouse-left-click-stopped-working-possible-to-replace/m-p/5019903 Also I could not access it because you need to remove the HDD first: https://www.youtube.com/watch?v=5Klawxc7T_Y and I can't pull it out even with considerable force, unlike in the video... And OMG, those button caps are impossible to re-install once removed!!! Then when I put the whole thing back together, the upper buttons were not working anymore. FUUUUUUUUCK. When first opening I pulled on it without properly removing the cap and it came off, but it didn't look broken in any way and I put it back in. Keyboard works thank God, so right black connector is fine, left white one oppears to be the one for upper keys and trackpoint, both of which stopped working. The hardware manual confirms that they are both part of the same device, so basically a mouse :-) TODO can it be bought separately from te keyboard? Doesn't look like it, photo of keyboard part includes those buttons. The manual also confirms that the bottom buttons are one device with the trackpad "trackpad with buttons", thus forming the second entire mouse.

2019-04-17: popup asking about "ThinkPad P51 Management Engine Update" from from 182.29.3287 to 184.60.3561, said yes.

<Ubuntu> 17.10 setup after buying it:

* partition setup: https://askubuntu.com/questions/343268/how-to-use-manual-partitioning-during-installation/976430#976430
* BIOS:
  * for NVIDIA driver:
  * for KVM, required by Android Emulator: enable virtualization extensions
* TODO fix the brightness keys:
  * failed: https://askubuntu.com/questions/769006/brightness-key-not-working-ubuntu-16-04-lts/770100#770100

Battery life shown by Ubuntu battery app after installation:

* before NVIDIA driver setup: 8h
* after: 6.5h


Lenovo ThinkPad P51 (2017) log

Connectome by species

Command line utility

Monophyly

Ciphertext

{tag=Connectome by species}
{tag=Drosophila melanogaster}
{wiki}


Drosophila brain

{tag=Connectome by species}
{tag=Mus musculus}
{title2=Mus musculus}


Mouse brain

Micro black hole

<Ciro Santilli> has felt that perhaps what is missing in 2020's <AGI> research is:
* the interface between:
  * the continuous/noisy level (now well developed under <artificial neural network> techniques of the 2010's)
  * and <symbolic AI> level AI
  The key question is somewhat how to extract symbols out of the space-time continuous experiences.
* more specialized accelerators that somehow interface with more generic <artificial neural networks>. Notably some kind of speialized processing of spacial elements is obviously hardcoded into the brain, see e.g. <grid cell>{full}

Forcing these boundaries to be tested was one of the main design goals of <Ciro's 2D reinforcement learning games>.

In those games, for example:
* when you press a button here, a door opens somewhere far away
* when you touch certain types of objects, a chemical reaction may happen, but not other types of objects
Therefore, those continuous objects would also have "magic" effects that could not be explained by "simple" "what is touching what" ideas.

Bibliography:
* https://mitpress.mit.edu/9780262632683/the-algebraic-mind/


The missing link between continuous and discrete AI

{c}
{title2=Apple's third co-founder}
{wiki}

\Video[https://www.youtube.com/watch?v=1C3Y5L-FYZA]
{title=The Sad Story of Apple's Third Co-Founder by ColdFusion (2022)}


Title	Author	Discussions	Created	Updated
Linear algebra	Donald Trump 29	1	2022-11-02	2023-02-12
Fundamental theorem of calculus	Donald Trump 29	3	2022-11-02	2023-02-12
Test data 14	Ciro Santilli 25	0	2023-01-29	2023-02-12
Chain rule	Donald Trump 29	0	2023-01-15	2023-02-12
Synthetic data	Ciro Santilli 25	0	2023-01-13	2023-02-12
Self-driving car	Ciro Santilli 25	0	2023-01-13	2023-02-12
Data	Ciro Santilli 25	0	2023-01-13	2023-02-12
Information	Ciro Santilli 25	0	2023-01-13	2023-02-12
Lenovo ThinkPad P51 (2017) log	Ciro Santilli 25	0	2023-01-13	2023-02-12
Connectome by species	Ciro Santilli 25	0	2023-01-10	2023-02-12
Command line utility	Ciro Santilli 25	0	2023-01-10	2023-02-12
Monophyly	Ciro Santilli 25	0	2023-01-10	2023-02-12
Ciphertext	Ciro Santilli 25	0	2023-01-10	2023-02-12
Drosophila brain	Ciro Santilli 25	0	2023-01-10	2023-02-12
Mouse brain	Ciro Santilli 25	0	2023-01-10	2023-02-12
Micro black hole	Ciro Santilli 25	0	2023-01-10	2023-02-12
The missing link between continuous and discrete AI	Ciro Santilli 25	0	2023-01-10	2023-02-12
Ronald Wayne	Ciro Santilli 25	0	2023-01-10	2023-02-12
Dutch university	Ciro Santilli 25	0	2023-01-10	2023-02-12
Pivot	Ciro Santilli 25	0	2023-01-10	2023-02-12