|0.3.14||Feb 22, 2021|
|0.3.13||Jan 30, 2021|
|0.3.9||Dec 28, 2020|
|0.2.2||Dec 9, 2020|
|0.1.10||Jun 14, 2020|
#15 in Math
258 downloads per month
Kalk is a calculator (both program and library) that supports user-defined variables, functions, and units (experimental, limited). It runs on Windows, macOS, Linux, Android, and in web browsers (with WebAssembly).
- Operators: +, -, *, /, !
- Groups: (), ⌈⌉, ⌋⌊
- Pre-defined functions and constants
- User-defined functions and variables.
f(x, y) = xy,
x = 5
- User-defined units (experimental).
unit m = cm/100,
50cm to m
- Understands fairly ambiguous syntax. Eg.
2sin50 + 2xy
- Syntax highlighting
- Special-symbol completion on tab. Eg. write
sqrtand 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=
- 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.
- Misc: separate expressions by a semicolon to write them on the same line, use the
ansvariable to get the value of the previously calculated expression.
There are currently three different libraries related to kalk.
- kalk: The Rust crate that powers it all.
kalk. This lets you use it in the browser, thanks to WebAssembly.
- @paddim8/kalk-component: A web component that acts as a frontend to
@paddim8/kalk, which lets you use kalk in the browser with a command line-like interface.
Pre-compiled binaries for Linux, Windows, and macOS (64-bit) are available in the releases page.
Minimum rust version: v1.36.0. Make sure you have
m4 installed. If you use windows: follow the instructions here (don't forget to install
mingw-w64-x86_64-rust in MSYS2).
cargo install kalk_cli
- Go into the
cargo build --release
- Grab the binary from
A more complete reference can be found on the website
Defining: name(parameter1, parameter2, ...) = expression
f(x) = 2x+3
Using: name(argument1, argument2)
Defining: name = expression
x = 3
Note: You only need to define the relationship between two units once. You will be able to convert between both of them.
unit name = expression
unit deg = (rad*180)/π
Using: Use them freely in expressions.
2 m to cm