qalc 命令

常用示例

说明

qalc is the command-line interface to the Qalculate library, providing a powerful calculator with support for mathematical expressions, unit conversions, currency exchange, and symbolic computation. It handles everything from basic arithmetic to complex expressions involving trigonometric functions, logarithms, integrals, and physical constants. A standout feature is built-in awareness of physical units and currencies, allowing natural expressions like "5 kilometers to miles" or "100 USD to EUR". Exchange rates can be updated automatically. In interactive mode, qalc provides a persistent session with command history and tab completion.

参数

-t, --terse

Reduce output to just the result.

-f _FILE_, --file _FILE_

Execute commands from a file first.

-e, --exrates

Update exchange rates.

-b _BASE_, --base _BASE_

Set the number base for results.

-c, --color

Use colors to highlight expressions and results.

-i, --interactive

Start in interactive mode.

-l _TERM_, --list _TERM_

List matching variables, functions, units, and prefixes.

-s _"OPTION VALUE"_, --set _"OPTION VALUE"_

Set a configuration option (e.g., -s "base 16").

-p _BASE_, --prog _BASE_

Start in programming mode with base conversion.

-n, --nodefs

Do not load any functions, units, or variables from file.