TY - JOUR TI - Kaczmarz algorithm revisited AU - Sznajder, Roman TI - Kaczmarz algorithm revisited AB - In 1937, Stefan Kaczmarz proposed a simple method, called the Kaczmarz algorithm, to solve iteratively systems of linear equations Ax = b in Euclidean spaces. This procedure employs cyclic orthogonal projections onto the hyperplanes associated with such a system. In the case of a nonsingular matrix A, Kaczmarz showed that his method guarantees convergence to the solution of Ax = b. The Kaczmarz algorithm was rediscovered in 1948 and became an important tool in medical engineering. We briefly discuss generalizations of this method and its ramifications, including applications in computer tomography, image processing and contemporary harmonic analysis. VL - 2015 IS - Nauki Podstawowe Zeszyt 2-NP (20) 2015 PY - 2016 SN - 0011-4561 C1 - 2353-737X SP - 247 EP - 254 DO - 10.4467/2353737XCT.15.220.4425 UR - https://ejournals.eu/czasopismo/czasopismo-techniczne/artykul/kaczmarz-algorithm-revisited KW - Kaczmarz method KW - systems of linear equations KW - computer tomography KW - image reconstruction