tldr/pages/common/bc.md

# bc

> Calculator.

- Run calculator in interactive mode using the standard math library:

`bc -l`

- Calculate the result of an expression:

`bc <<< "(1 + 2) * 2 ^ 2"`

- Calculate expression and force number of decimal places to 10:

`bc <<< "scale=10; 5 / 3"`

- Calculate expression with sine and cosine using mathlib:

`bc -l <<< "s(1) + c(1)"`
bc: add page 2015-12-12 22:37:45 +02:00			`# bc`

			`> Calculator.`

simplification * merged lines about interactive mode and mathlib 2016-11-21 09:33:08 -07:00			`- Run calculator in interactive mode using the standard math library:`
Added a line about interactive usage with mathlib Usually `bc` isn't very useful if it doesn't return have floating point number where appropriate. e.g., 3/4 returns 0 when started with `-i` but for most users they would expect 0.75 to be returned so the argument `-l`does what the user would generally want. 2016-10-31 17:37:05 -06:00
			`bc -l`

Formatted all pages according to guidelines. 2016-01-07 18:31:27 +01:00			`- Calculate the result of an expression:`
bc: add page 2015-12-12 22:37:45 +02:00
			`bc <<< "(1 + 2) * 2 ^ 2"`

Changing wording in scale example * 'decimal places' used instead of 'precision' * Implicit example of using scale 2017-02-25 16:48:24 -07:00			`- Calculate expression and force number of decimal places to 10:`
bc: add page 2015-12-12 22:37:45 +02:00
			`bc <<< "scale=10; 5 / 3"`

Formatted all pages according to guidelines. 2016-01-07 18:31:27 +01:00			`- Calculate expression with sine and cosine using mathlib:`
bc: add page 2015-12-12 22:37:45 +02:00
			`bc -l <<< "s(1) + c(1)"`