tldr/pages/common/bc.md

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# bc
> An arbitrary precision calculator language.
> More information: <https://manned.org/bc>.
- Start `bc` in interactive mode using the standard math library:
`bc -l`
- Calculate the result of an expression:
`bc <<< "(1 + 2) * 2 ^ 2"`
- Calculate the result of an expression and force the number of decimal places to 10:
`bc <<< "scale=10; 5 / 3"`
- Calculate the result of an expression with sine and cosine using `mathlib`:
`bc -l <<< "s(1) + c(1)"`