Here is a list of all documented files with brief descriptions:

a.h	Algorithm library
avl.h	Adelson-Velsky and Landis self-balancing binary search tree
buf.h	Basic buffer library
complex.h	Complex number
crc.h	Cyclic Redundancy Check
fuzzy.h	Fuzzy operator
hash.h	Hash function
hpf.h	High Pass Filter
linalg.h	Linear algebra functions
line2.h	Two-dimensional line
line3.h	Three-dimensional line
list.h	Circular doubly linked list implementation
lpf.h	Low Pass Filter
math.h	Mathematical algorithm library
mf.h	Membership function
notefreqs.h	A note frequency table
pid.h	Proportional integral derivative controller
pid_fuzzy.h	Fuzzy proportional integral derivative controller
pid_neuro.h	Single neuron proportional integral derivative controller
plane.h	Three-dimensional plane
point2.h	Two-dimensional point
point3.h	Three-dimensional point
poly.h	Polynomial
que.h	Basic queue library
rbt.h	Red–black self-balancing binary search tree
regress.h	Regression
regress_linear.h	Linear regression
regress_simple.h	Simple linear regression
slist.h	Singly linked list implementation
str.h	Basic string library
tf.h	Transfer function
trajbell.h	Bell-shaped velocity trajectory
trajpoly3.h	Cubic polynomial trajectory
trajpoly5.h	Quintic polynomial trajectory
trajpoly7.h	Hepta polynomial trajectory
trajtrap.h	Trapezoidal velocity trajectory
utf.h	Unicode Transformation Format
vec.h	Basic vector library
vector2.h	Two-dimensional vector
vector3.h	Three-dimensional vector
version.h	Algorithm library version