Scientific calculator on GitHub

Abstract scientific calculator radix mark with umber stem and sand tip on slate paper.
Radix-mark: ink cipher frame with an umber base column for a local scientific calculator install. Cipher Quill original radix-mark geometry for factory-scientific-calculator (not a Qalculate logo).

Qalculate! keeps the scientific calculator library, Windows MSI, and Linux tarball on Qalculate/libqalculate. GTK and Qt UIs live in sibling repositories under the same org.

Which repository to open

Start at Qalculate/libqalculate for licence, security, and the Windows scientific calculator MSI. UI sources are at qalculate-gtk and qalculate-qt.

Homepage and manual: qalculate.github.io. Releases door: releases map.

What the licence means

GPL-2.0 means you can run, study, and redistribute under the licence terms. Cipher Quill does not rehost binaries; download links point at GitHub and verified package managers.

Security reports go through the GitHub Security tab on libqalculate. Do not email mystery binaries to classmates as a “faster scientific calculator”.

Stars, tags, and cadence

Release tags use a v prefix. This guide maps the current stable line shown in release data at build time. Prefer the live tag over a blog post that freezes an old dotted version.

Stars and issue counts change; treat the live repository page as authoritative. Home hub: scientific calculator home.

Issues and support posture

Upstream issues belong on the Qalculate! repositories. Cipher Quill only maps install doors. If an MSI name changes, re-check Releases before filing a mirror complaint.

For classroom images, paste the repository URL into the ticket so the next admin finds the same scientific calculator door.

Related install paths

Windows: Windows install. macOS: macOS install. Linux: Linux install. Safe download: download safely.

First hour after the GUI opens: installed. Safety: is it safe.

Keep GitHub as the source of truth

Review portals scrape READMEs and wrap installers. A scientific calculator ticket that cites Softonic instead of GitHub will drift. Prefer the org you can audit.

When winget, Homebrew, or Flatpak lag a day behind a tag, you can still take the GitHub MSI or tarball directly. Document which door you used.

Clone the UI repos only when you intend to build from source. Everyday users should stay on MSI, bottle, Flatpak, or the self-contained Linux tarball.

Cipher Quill is independent. Upstream remains Qalculate!. About: about.

Checklist for auditors

  • Confirm the org is Qalculate on github.com.
  • Confirm the Windows asset matches qalculate-*-x64.msi.
  • Confirm winget id Qalculate.Qalculate only if you use winget.
  • Confirm brew formulae names before scripting macOS images.

That checklist keeps a scientific calculator deployment boring across labs.

Auditors who need a paper trail should capture the Releases URL, the asset filename, and the package manager id in the same ticket. Do not rely on memory after a semester break. A single markdown note in the image build folder is enough for most classrooms.

If a student machine shows a different publisher string in Apps and features, uninstall and return to the GitHub MSI before troubleshooting expressions. Wrong mirrors are the usual cause, not a broken scientific calculator feature.

Operational notes for teams

Teams that share machines should treat each scientific calculator install like any other approved utility. Write the door on the ticket, name the owner of the next bump, and refuse review-portal wrappers that only rank in search results.

  • After every reimage, evaluate one expression before restoring custom functions.
  • Contractors should receive the GitHub Releases URL in the ticket body.
  • Classroom images should store the MSI beside other approved utilities.
  • Home users can keep a single Downloads note with the filename pattern.

When two people share one laptop, agree which door owns updates before anyone installs a second copy. Mixing MSI and portable zip without a note is how duplicate faces and confused uninstalls start.

If SmartScreen or Gatekeeper warns, return to the URL you typed. Do not chase a second mirror from a sponsored result. Exact publisher strings can vary by Windows SKU, so this guide avoids inventing them.

Related routes

Keep these pages open while you work: the home hub, guides index, releases map, GitHub overview, download-safe habits, first hour, and about.

Say “the current release” in documentation instead of freezing a dotted version string in public HTML. Live tags change. Filename patterns such as qalculate-*-x64.msi stay stable enough for imaging scripts that match by glob. Cipher Quill publishes independent mapping; upstream remains Qalculate! under GPL-2.0. Corrections that include upstream URLs can go through contact after you read how we verify.

Prefer one documented path per machine and leave experimental builds for a separate folder. A second proof expression after every restore keeps Softonic shortcuts from returning through old bookmarks on a shared scientific calculator image.