delta = angdiff(alpha,beta) calculates the difference between the angles alpha and beta. This function subtracts alpha from beta with the result wrapped on the interval [-pi,pi]. You can specify the input angles as single values or as arrays of angles that have the same number of values.

delta = angdiff(alpha) returns the angular difference between adjacent elements of alpha along the first dimension whose size does not equal 1. If alpha is a vector of length n, the first entry is subtracted from the second, the second from the third, etc. The output, delta, is a vector of length n-1. If alpha is an m-by-n matrix with m greater than 1, the output, delta, will be a matrix of size m-1-by-n.