Official Reusable public libraries for KatLang.

Usage

In the KatLang web page, you can open libraries stored under ./libraries using URLs such as:

open 'https://katlang.org/libraries/vec.kat'

Library authors may organize .kat files in subfolders. The folder path is included in the library URL.

For example:

open 'https://katlang.org/libraries/examples/algorithm.kat'

Example

open 'https://katlang.org/libraries/plane-vec.kat', Math

InitialSpeed = 30.3 // the approximate speed of a soccer ball when being kicked by a professional soccer player, 70 mph in m/s
InitialAngle = Pi / 6 // Assuming an initial angle of 30°
u = Vector(InitialSpeed * Cos(InitialAngle), InitialSpeed * Sin(InitialAngle))
a = Vector(0, -9.8)
v = u.Add(a.Scale(t))
s = u.Scale(t).Add(a.Scale(0.5*t^2))

DisplayDecimals = 3

'velocity and displacement at time = 0'
v(0)
s(0)

'velocity and displacement at time = 2.0'
v(2.0)
s(2.0)

'time, velocity and displacement at highest point'
t_highest = v(0).Y / Abs(a.Y)
t_highest
v(t_highest)
s(t_highest)

'time, velocity and displacement when hitting back to the ground'
t_final = 2 * t_highest
t_final
v(t_final)
s(t_final)

Output

velocity and displacement at time = 0
26.241, 15.150
0.000, 0.000
velocity and displacement at time = 2.0
26.241, -4.450
52.481, 10.700
time, velocity and displacement at highest point
1.546
26.241, 0.000
40.566, 11.710
time, velocity and displacement when hitting back to the ground
3.092
26.241, -15.150
81.132, 0.000

Contribution Guidelines

If you would like to contribute a KatLang library, please fork this repository, add your library as a .kat file in ./lib; and edit the libraries.json, adding in your library details at the bottom. Finally, create a pull request for your changes.

The .kat file should be named in the kebab case.

New libraries will adapt the MIT license, which the KatLang language is using.

If you have any queries, welcome to open an issue.