How to install step
on Arch Linux

step

step

KDE Verified account

Simulate physics experiments

Step is an interactive physical simulator. It allows you to explore the physical world through simulations. It works like this: you place some bodies on the scene, add some forces such as gravity or springs, then click Simulate and Step shows you how your scene will evolve according to the laws of physics. You can change every property of the bodies/forces in your experiment (even during simulation) and see how this will change evolution of the experiment. With Step you cannot only learn but feel how physics works!

Features:

  • Classical mechanical simulation in two dimensions
  • Particles, springs with damping, gravitational and coulomb forces
  • Rigid bodies
  • Collision detection (currently only discrete) and handling
  • Soft (deformable) bodies simulated as user-editable particles-springs system, sound waves
  • Molecular dynamics (currently using Lennard-Jones potential): gas and liquid, condensation and evaporation, calculation of macroscopic quantities and their variances
  • Units conversion and expression calculation: you can enter something like "(2 days + 3 hours) * 80 km/h" and it will be accepted as distance value (requires libqalculate)
  • Errors calculation and propagation: you can enter values like "1.3 ± 0.2" for any property and errors for all dependent properties will be calculated using statistical formulas
  • Solver error estimation: errors introduced by the solver is calculated and added to user-entered errors
  • Several different solvers: up to 8th order, explicit and implicit, with or without adaptive timestep (most of the solvers require GSL library)
  • Controller tool to easily control properties during simulation (even with custom keyboard shortcuts)
  • Tools to visualize results: graph, meter, tracer
  • Context information for all objects, integrated wikipedia browser
  • Collection of example experiments, more can be downloaded with KNewStuff
  • Integrated tutorials

Details for step

License
GPL-2.0+
Last updated
13 August 2019

Enable snaps on Arch Linux and install step

Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.

Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.

Enable snapd

On Arch Linux, snap can be installed from the Arch User Repository (AUR). The manual build process is the Arch-supported install method for AUR packages, and you’ll need the prerequisites installed before you can install any AUR package. You can then install snap with the following:

git clone https://aur.archlinux.org/snapd.git cd snapd makepkg -si

Once installed, the systemd unit that manages the main snap communication socket needs to be enabled:

To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:

Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.

Install step

To install step, simply use the following command:

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Get the snap store

Browse and find snaps from the convenience of your desktop using the snap store snap.

Learn more about snaps

Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.