tldr/pages/common/calc.md

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# calc
> An interactive arbitrary-precision calculator in the terminal.
> More information: <https://github.com/lcn2/calc>.
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- Start `calc` in interactive mode:
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`calc`
- Perform a calculation in non-interactive mode:
`calc '{{85 * (36 / 4)}}'`
- Perform a calculation without any output formatting (for use with pipes):
`calc -p '{{4/3 * pi() * 5^3}}'`
- Perform a calculation and then switch to [i]nteractive mode:
`calc -i '{{sqrt(2)}}'`
- Start `calc` in a specific permission [m]ode (0 to 7, defaults to 7):
`calc -m {{mode}}`
- View an introduction to `calc`:
`calc help intro`
- View an overview of `calc`:
`calc help overview`
- Open the `calc` manual:
`calc help`