Florian Cajori’s , first published in 1928–1929, is the definitive reference for the origin and evolution of mathematical symbols. Because of its immense detail, it is best used as an encyclopedia rather than a straight-through read. Core Structure
: It identifies three major phases of notation: Rhetorical : Purely verbal math with no symbols. Syncopated : Abbreviations for commonly used words. A History of Mathematical Notations
Florian Cajori's History of Mathematical Notations - MAA.org Florian Cajori’s , first published in 1928–1929, is