how install kcalc ubuntu

ubuntu

kcalc

simple and scientific calculator
http://www.kde.org/
Install sudo apt install kcalc
Description:

KCalc is a scientific calculator.

KCalc provides:
* Trigonometric functions, logic operations, and statistical calculations
* Calculation in decimal, hexadecimal, octal, and binary bases
* Memory functions for storing results
* A comprehensive collection of mathematical constants
This package is part of the KDE Utilities module.