tldr/pages/common/dc.md

dc

An arbitrary precision calculator. Uses reverse polish notation (RPN).

• Run calculator in interactive mode:

dc

• Execute dc script in file:

dc -f {{file}}

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

echo "4 5 * 17 - p"| dc

• Set number of decimal places to 10 [k 7], calculate 5 divided by -3 [5 _3 /] and [p]rint (using dc -e):

dc -e "7 k 5 _3 / p"

• To 100 decimal places [100 k], calculate the golden ratio, phi: sqrt(5) [5 v] plus 1 [1 +], divided by 2 [2 /], and [p]rint result:

dc -e "100 k 5 v 1 + 2 / p"