aspline

Akima spline interpolation

Install

All systems
curl cmd.cat/aspline.sh
Debian Debian
apt-get install spline
Ubuntu
apt-get install spline
image/svg+xml Kali Linux
apt-get install spline
Windows (WSL2)
sudo apt-get update sudo apt-get install spline
Raspbian
apt-get install spline

spline

Akima spline interpolation

aspline(1) interpolates an Akima-spline through a series of given points. The Akima-spline interpolation approximates a manually drawn curve better than the ordinary splines, but the second derivative is not continuous. The Akima-spline algorithm is described in "A New Method of Interpolation and Smooth Curve Fitting Based on Local Procedures", H. Akima, J. Assoc. Comput. Mach., 17(4), 1970, pp. 589-602. doi:10.1145/321607.321609