Arithmetical symbols are written diagrams and geometrical figures are graphic formulas.


Mathematical Problems, Bulletin of the American Mathematical Society, Volume 8, July 1902, (p. 443)


Arithmetical symbols are written diagrams and geometrical figures are graphic formulas.

Arithmetical symbols are written diagrams and geometrical figures are graphic formulas.

Arithmetical symbols are written diagrams and geometrical figures are graphic formulas.

Arithmetical symbols are written diagrams and geometrical figures are graphic formulas.