Functions

Orders of Infinity

The 'Infinitärcalcül' of Paul Du Bois-Reymond

G. H. (Godfrey Harold) Hardy

On Riemann's Theory of Algebraic Functions and their Integrals

A Supplement to the Usual Treatises

Felix Klein

Introduction to Infinitesimal Analysis; Functions of One Real Variable

Oswald Veblen
N. J. (Nels Johann) Lennes

A Course of Pure Mathematics

Third Edition

G. H. (Godfrey Harold) Hardy