mirror of
https://github.com/PaddiM8/kalker.git
synced 2024-12-12 17:40:52 +01:00
69 lines
3.0 KiB
Markdown
69 lines
3.0 KiB
Markdown
# kalk
|
|
[](https://crates.io/crates/kalk_cli)
|
|
[](https://github.com/PaddiM8/kalk/blob/master/LICENSE)
|
|
[](https://docs.rs/kalk/latest/kalk/)
|
|
|
|
|
|
|
|
Kalk is a calculator (both program and library) that supports user-defined variables, functions, and units (experimental).
|
|
[Project kanban board (Kolan)](https://kolan.strct.net/Board/4RAdMjLDz)
|
|
|
|
Website: [kalk.strct.net](https://kalk.strct.net)
|
|
|
|
|
|
|
|
## Features
|
|
* Operators: +, -, \*, /, !
|
|
* Groups: (), ⌈⌉, ⌋⌊
|
|
* [Pre-defined functions and constants](https://github.com/PaddiM8/kalk/blob/master/kalk/src/prelude.rs)
|
|
* User-defined functions and variables. `f(x, y) = xy`, `x = 5`
|
|
* User-defined units (experimental). `unit m = cm/100`, `2m/50cm`, `50cm to m`
|
|
* Understands fairly ambiguous syntax. Eg. `2sin50 + 2xy`
|
|
* Syntax highlighting
|
|
* Special-symbol completion on tab. Eg. write `sqrt` and press tab. It will be turned into `√`.
|
|
* Sum function: `sum(start, to, expression)` Eg. `sum(1, 3, 2n+1)` is the same as `2*1+1 + 2*2+1 + 2*3+1` = `15`
|
|
* Load a file including predefined functions and constants. For example, if you're going to use Kalk for physics, you load up your file with physics functions/constants when starting Kalk. `-i file`
|
|
* Misc: separate expressions by a semicolon to write them on the same line, use the `ans` variable to get the value of the previously calculated expression.
|
|
|
|
## Installing
|
|
### Binaries
|
|
Pre-compiled binaries for Linux, Windows, and macOS (64-bit) are available in the [releases page](https://github.com/PaddiM8/kalk/releases).
|
|
### Compiling
|
|
**Minimum rust version: v1.36.0**. Make sure you have `diffutils` `gcc` `make` and `m4` installed. **If you use windows:** [follow the instructions here](https://docs.rs/gmp-mpfr-sys/1.2.3/gmp_mpfr_sys/index.html#building-on-windows) (don't forget to install `mingw-w64-x86_64-rust` in MSYS2).
|
|
|
|
#### Cargo
|
|
Run `cargo install kalk_cli`
|
|
|
|
#### Manually
|
|
1. Go into the `kalk_cli` directory.
|
|
2. Run `cargo build --release`
|
|
3. Grab the binary from `targets/release`
|
|
|
|
## Syntax
|
|
A more complete reference can be found on [the website](https://kalk.strct.net)
|
|
|
|
### Functions
|
|
__Defining:__ name(parameter1, parameter2, ...) = expression
|
|
**Example:** `f(x) = 2x+3`
|
|
|
|
__Using:__ name(argument1, argument2)
|
|
**Example:** `f(2)`
|
|
|
|
### Variables
|
|
__Defining:__ name = expression
|
|
**Example:** `x = 3`
|
|
|
|
__Using:__ name
|
|
**Example:** `x`
|
|
|
|
### Units (experimental, are likely to not work properly)
|
|
*Note: You only need to define the relationship between two units once. You will be able to convert between both of them.*
|
|
__Defining:__ `unit` name = expression
|
|
**Example:** `unit deg = (rad*180)/π`
|
|
|
|
__Using:__ Use them freely in expressions.
|
|
**Example:** `2m/50cm`
|
|
|
|
__Converting:__ expression `to` unit
|
|
**Example:** `2 m to cm`
|