Beamforming is a signal processing technique where an array of antenna elements can be steered to transmit and receive radio signals in a specific direction. The usage of millimeter wave (mmWave) frequencies and multiple input multiple output (MIMO) ...

We present a system [1] that allows wireless smartphones to be used for mathematics communication, that is, for the creation and exchange of mathematical formulas, diagrams, and text between two or more participants. The system enables two or more persons ...

We present a computer algebra framework to automatically derive and implement algorithms for digital signal processing. The two main parts of the framework are AREP, a library for symbolic manipulation of group representations and structured matrices, ...

A central problem in signal processing is the filtering of signals. In the design of digital filters with the aid of the bilinear transform REDUCE [1] can be used with great benefit. A filter - as used in signal processing - is a circuitry or a ...

REDUCE is a well known computer algebra system invented by Anthony C. Hearn. While every effort was made to improve the system's algebraic capabilities, the readability of the output remained poor by modern typesetting standards. Although a pretty-...

Comparing the speed of computation in algebra systems is a perennial occupation of system designers, algorithm implementors, and, more recently, marketing personnel. At least some people have observed that for many problems, the choice of a system makes ...