https://fr.mathworks.com/help/fuzzy/linzmf.html
linzmf - Linear z-shaped saturation membership function - MATLAB
This function computes fuzzy membership values using a linear z-shaped membership function.
linear zshapedsaturationmembershipfunction
https://www.sciencenews.org/archive/linear-collider-makes-z
Linear Collider Makes a Z | Science News
a zlinearcollidermakesscience