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dc — An arbitrary precision calculator. Uses reverse polish notation (RPN). See also: `bc`, `qalc`. More

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Problem

How to use the dc command: An arbitrary precision calculator. Uses reverse polish notation (RPN). See also: bc, qalc. More information: <https://www.gnu.org/software/bc/manual/dc-1.05/html_mono/dc.html>.

Solution

dc — An arbitrary precision calculator. Uses reverse polish notation (RPN). See also: bc, qalc. More information: <https://www.gnu.org/software/bc/manual/dc-1.05/html_mono/dc.html>.

Start an interactive session:
dc


Execute a script:
dc {{path/to/script.dc}}


Calculate an expression with the specified scale:
dc {{[-e|--expression]}} '{{10}} k {{5 3 /}} p'


Calculate 4 times 5 (4 5 *), subtract 17 (17 -), and [p]rint the output:
dc {{[-e|--expression]}} '4 5 * 17 - p'


Specify the number of decimal places to 7 (7 k), calculate 5 divided by -3 (5 _3 /) and [p]rint:
dc {{[-e|--expression]}} '7 k 5 _3 / p'


Calculate the golden ratio, phi: set number of decimal places to 100 (100 k), square root of 5 (5 v) plus 1 (1 +), divided by 2 (2 /), and [p]rint result:
dc {{[-e|--expression]}} '100 k 5 v 1 + 2 / p'

Code Snippets

Start an interactive session

dc

Execute a script

dc {{path/to/script.dc}}

Calculate an expression with the specified scale

dc {{[-e|--expression]}} '{{10}} k {{5 3 /}} p'

Calculate 4 times 5 (4 5 *), subtract 17 (17 -), and [p]rint the output

dc {{[-e|--expression]}} '4 5 * 17 - p'

Specify the number of decimal places to 7 (7 k), calculate 5 divided by -3 (5 _3 /) and [p]rint

dc {{[-e|--expression]}} '7 k 5 _3 / p'

Context

tldr-pages: common/dc

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