denis-bz

Poisson2 - 4 I: nice test matrices for linear solvers and eigensolvers

Purpose: a simple generator of test matrices for linear solvers and eigensolvers

Keywords: sparse-matrix, linear-solver, eigensolver, arpack, nullspace, python

poisson2( n ) below generates sparse $n^2 \ x \ n^2$ matrices $A$ with $A$ symmetric (aka Hermitian) and positive-definite; solving $A \ x = b$ is then relatively easy. $A_4 = A - 4 I$ is more interesting: there are $n$ vectors $z_i$

johnathanmay

Logitech MX Master 3 Extras for Linux With logiops

The Logitech Options program isn't available for Linux, but by a nice guy on GitHub (PixlOne) created an open source project that lets you obtain some of that functionality. It's called logiops. It works in conjunction with the Solaar project as well, which I find especially handy since that shows your available battery life in the system tray and lets you pair/unpair devices with the Logitech Unifying Receiver.

Here are some additional pages with info that I used to generate this documentation:

• https://github.com/PixlOne/logiops/wiki/Configuration
• https://github.com/PixlOne/logiops/blob/master/logid.example.cfg
• https://github.com/torvalds/linux/blob/master/include/uapi/linux/input-event-codes.h

GiulioRomualdi

How to install CasADi + IPOPT + HSL

The tutorial has been moved in: https://github.com/ami-iit/ami-commons/blob/master/doc/casadi-ipopt-hsl.md

Click me if you are interested in the original tutorial

This guide should help you to install CasADi with IPOPT and HSL support.

stefanovazzocell

#!/usr/bin/env bash

echo 'Adding Dell repository...'
# https://www.dell.com/community/XPS/XPS-13-9300-Does-fingerprint-reader-work-on-linux/td-p/7514958

sudo sh -c 'cat > /etc/apt/sources.list.d/focal-dell.list << EOF
deb http://dell.archive.canonical.com/updates/ focal-dell public
# deb-src http://dell.archive.canonical.com/updates/ focal-dell public
deb http://dell.archive.canonical.com/updates/ focal-oem public
# deb-src http://dell.archive.canonical.com/updates/ focal-oem public

br3ndonland

Getting the Gist of GitHub Actions

Tutorial and tips for GitHub Actions workflows

Table of Contents

• Introduction
• Workflows and actions

gngdb

import torch
import torch.nn as nn
import torch.optim as optim
import torch.nn.functional as F

import numpy as np
from scipy import optimize

from obj import PyTorchObjective

traversaro

Articles:

• https://www.tldp.org/HOWTO/C++-dlopen/thesolution.html
• https://www.linuxjournal.com/article/3687
• https://github.com/knusbaum/CPP-Dynamic-Class-Loading
• https://www.reddit.com/r/cpp/comments/6gbv6c/designing_a_plugin_framework_for_an_application/

Libraries:

• https://github.com/dlfcn-win32/dlfcn-win32
• https://github.com/robotology-playground/sharedlibpp
• https://github.com/OSVR/libfunctionality

tomwwright

# perform a fresh install of Ubuntu 17.10

# upgrade the kernel to v4.13.10
mkdir ~/kernel-v4.13.10
cd ~/kernel-v4.13.10
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13.10/linux-headers-4.13.10-041310_4.13.10-041310.201710270531_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13.10/linux-headers-4.13.10-041310-generic_4.13.10-041310.201710270531_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13.10/linux-image-4.13.10-041310-generic_4.13.10-041310.201710270531_amd64.deb
sudo dpkg -i *.deb

DanielArnett

This tutorial will guide you through the setup of the HTC Vive Tracker in Python 3.6 on Ubuntu 14.04.

Prerequesites

Up to date graphics drivers

x86 architecture

SteamVR requires >4GB disk space

edsiper

Kubernetes Commands

Helper setup to edit .yaml files with Vim:

• VIM Setup for Yaml files

List of general purpose commands for Kubernetes management:

• PODS
• Create Deployments