# kht++

kht++ is a program for calculating the Khovanov and Bar-Natan homology of links and tangles [3] [1].

kht++ was primarily written for the purpose of computing tangle invariants in Khovanov theory, in particular the immersed multicurve invariants and for four-ended tangles from the monograph [4]. One may also use it for computing the invariants for knots and links, and any derived invariants, such as Rasmussen's s-invariant [8]. While it is reasonably fast and resource friendly, kht++ has not been optimized as much as some other programs; if you are only interested in Khovanov invariants of knots and links, you might want to consider one of these programs first.

## Contact

For feedback, questions, and bug reports, please send an email to cbz20@posteo.net.