calc
The "calc" command line tool is a builtin calculator utility available in several operating systems, including Windows and Linux. It provides a simple and convenient way to perform mathematical calculations directly from the command line interface.
Here are some key features and functionalities of the "calc" command line tool:

Mathematical operations: You can use the "calc" command to perform various mathematical operations such as addition, subtraction, multiplication, division, and more.

Expression evaluation: It allows you to evaluate complex mathematical expressions by using operators, parentheses, functions, and constants. You can enter expressions using standard mathematical notation.

Precision and scientific notation: The "calc" tool provides high precision and supports scientific notation for working with very large or very small numbers.

Unit conversions: It includes builtin functions for converting between different units of measurements, such as length, time, frequency, temperature, etc.

Memory functionality: The calculator also has a memory feature that enables you to store and recall values for future calculations.

Customization: Some implementations of the "calc" tool allow for customization, enabling you to set different options, adjust the precision, control output formatting, and more.
Overall, the "calc" command line tool offers a convenient and efficient way to perform various mathematical calculations directly from the command line interface, making it useful for both quick calculations and more advanced mathematics.
List of commands for calc:

calc:tldr:43c6b calc: View an overview of `calc`.$ calc help overviewtry on your machineexplain this command

calc:tldr:74e33 calc: Start `calc` in interactive mode.$ calctry on your machineexplain this command

calc:tldr:a5b21 calc: Perform a calculation in noninteractive mode.$ calc '${85 * (36  4)}'try on your machineexplain this command

calc:tldr:b4248 calc: Perform a calculation and then switch to [i]nteractive mode.$ calc i '${sqrt(2)}'try on your machineexplain this command

calc:tldr:b7efd calc: View an introduction to `calc`.$ calc help introtry on your machineexplain this command

calc:tldr:d62fc calc: Start `calc` in a specific permission [m]ode (0 to 7, defaults to 7).$ calc m ${mode}try on your machineexplain this command

calc:tldr:d77d6 calc: Perform a calculation without any output formatting (for use with pipes).$ calc p '${43 * pi() * 5^3}'try on your machineexplain this command