How to install step
on openSUSE

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 openSUSE 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

Snap can be installed from the command line on openSUSE Leap 42.3, Leap 15 and Tumbleweed.

You need first add the snappy repository from the terminal. Leap 15 users, for example, can do this with the following command:

Swap out openSUSE_Leap_15.0 for either openSUSE_Leap_42.3 or openSUSE_Tumbleweed if you’re using a different version of openSUSE.

With the repository added, import its GPG key:

Finally, upgrade the package cache to include the new snappy repository:

Snap can now be installed with the following:

You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH. Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands:

sudo systemctl enable snapd sudo systemctl start snapd

Tumbleweed users also need to run the following:

sudo systemctl enable snapd.apparmor sudo systemctl start snapd.apparmor

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.