# bc
# An arbitrary precision calculator language.
# See also: `dc`.
# More information: <https://manned.org/man/bc.1>.
# Start an interactive session:
bc
# Start an interactive session with the standard math library enabled:
bc --mathlib
# Calculate an expression:
echo '5 / 3' | bc
# Execute a script:
bc path/to/script.bc
# Calculate an expression with the specified scale:
echo 'scale = 10; 5 / 3' | bc
# Calculate a sine/cosine/arctangent/natural logarithm/exponential function using `mathlib`:
echo 's|c|a|l|e(1)' | bc --mathlib
$
cheat.sh
tldr