Studies in evolution of Abacal arithmetic
- CA MUA MG 4248-1-06.04
- File
- undated
This file contains research on studies in evolution of Abacal arithmetic. This includes Study 1 Theodorus epoch-making lecture delivered at Athens on Pythagorean power notation and generalisation on the pectilinear abacus with a foreword on the earlier spiral or circular abacus of common counting.