KCalc has everything you would expect from a scientific calculator, plus:
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!
We released a new version of К‑калк!