Developed to determine whether two noisy

The Rybicki–Press algorithm is a fast algorithm for inverting a matrix whose entries are given by , where and where the are sorted in order. The key observation behind the Rybicki-Press observation is that the matrix inverse of such a matrix is always a tridiagonal matrix, and tridiagonal systems of equations can be solved efficiently. It is a computational optimization of a general set of statistical methods developed to determine whether two noisy, irregularly sampled data sets are, in fact, dimensionally shifted representations of the same underlying function. The most common use of the algorithm is in the detection of periodicity in astronomical observations, such as for detecting quasars.

Frank Sinatra Sings the Select Rodgers & Hart is a 1995 compilation album by Frank Sinatra. In this album, Sinatra sings his renditions of Richard Rodgers and Lorenz Hart.