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def get_second_area_moment(breadth, depth):
    return breadth * depth**3/12


def get_natural_frequency(youngs_modulus, sam, mass, length, eigenvalue):
    return eigenvalue * ((youngs_modulus * sam)/(mass * length**4))**(1/2)


def get_light_beam_stiffness(length, youngs, sam):
    return (3 * youngs * sam)/(length**3)

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#!/usr/bin/env bash

find "*.rtf" -type f -exec flatpak run org.libreoffice.LibreOffice --headless --invisible --norestore --convert-to pdf {} +

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[ 5280.541836] ------------[ cut here ]------------
[ 5280.541839] WARNING: CPU: 3 PID: 42835 at fs/btrfs/extent-tree.c:3068 __btrfs_free_extent+0x747/0x1140 [btrfs]
[ 5280.541894] Modules linked in: ext4 mbcache jbd2 vfat fat mousedev hid_logitech_hidpp uhid snd_seq_dummy snd_hrtimer snd_seq snd_seq_device exfat rfcomm nvidia_uvm(POE) nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) cmac algif_hash algif_skcipher af_alg qrtr joydev sg st sr_mod bnep snd_soc_avs snd_hda_codec_realtek snd_soc_hda_codec snd_hda_codec_generic snd_hda_ext_core ledtrig_audio snd_soc_core snd_hda_codec_hdmi snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel iwlmvm intel_rapl_msr snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec intel_rapl_common snd_hda_core btusb mac80211 snd_hwdep intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp snd_pcm libarc4 btrtl btbcm snd_timer btintel btmtk snd soundcore coretemp bluetooth ecdh_generic crc16 kvm_intel iwlwifi iTCO_wdt intel_pmc_bxt kvm iTCO_vendor_support irqbypass ppdev ee1004 cfg

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gnome-shell

Relavant links:

• Core Dumps
• Getting Traces
• Journal
• debuginfod

I have an interesting but I want to fix on my system. Whenever I wake up my computer the display manager crashes and a new session appears.

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nov. 29 21:02:15 matebook systemd-logind[537]: Lid closed.
nov. 29 21:02:15 matebook systemd-logind[537]: Suspending...
nov. 29 21:02:15 matebook NetworkManager[541]: <info>  [1669752135.3030] manager: sleep: sleep requested (sleeping: no  enabled: yes)
nov. 29 21:02:15 matebook NetworkManager[541]: <info>  [1669752135.3031] device (p2p-dev-wlan0): state change: disconnected -> unmanaged (reason 'sleeping', sys-iface-state: 'managed')
nov. 29 21:02:15 matebook NetworkManager[541]: <info>  [1669752135.3036] manager: NetworkManager state is now ASLEEP
nov. 29 21:02:15 matebook NetworkManager[541]: <info>  [1669752135.3037] device (wlan0): state change: activated -> deactivating (reason 'sleeping', sys-iface-state: 'managed')
nov. 29 21:02:15 matebook dbus-daemon[536]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.3' (uid=0 pid=541 comm="/usr/bin/NetworkManager --no-daemon")
nov. 29 21:02:15 matebook systemd[1]: St

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%{
octave:4> help obsv
'obsv' is a function from the file /usr/share/octave/packages/control-3.4.0/obsv.m

 -- Function File: OB = obsv (SYS)
 -- Function File: OB = obsv (A, C)
     Return observability matrix.

     *Inputs*
     SYS

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Printer setup at NTNU for manjaro

usermod -aG sys $USER
pacman -S manjaro-printer system-config-printer cups
systemctl enable cups --now

relogin to make group changes take effect.

start system-config-printer and follow instructions on NTNU's website

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#!/bin/bash

SOURCE_DIRS=('./Private' './Public' './Library')
FILE_EXTENSION="*.php"

for dir in "${SOURCE_DIRS[@]}"; do
    files="$(find "$dir" -name "$FILE_EXTENSION";)"
    for file in $files; do
        base_name="$(basename $file)";
        new_name=$(sed "s/$base_name/${base_name^}/g" <<< $file)

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echo "<?php\n\ndeclare(strict_types=1);\n\nnamespace\n\n\\App;" | tee -a $(find ./ -name "*.php")

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sudo ss -tlpn