Cargo Features

[dependencies]
tpntree = { version = "0.5.2", default-features = false, features = ["nalgebra"] }
default = nalgebra

The nalgebra feature is set by default whenever tpntree is added without default-features = false somewhere in the dependency tree.

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

nalgebra default

Enables nalgebra ^0.28