The Prostaphaeretic Multiplier

Table of Contents

The Prostaphaeretic Multiplier
David B. Sher and Dean Nataro
Mat/Sta/CMP Dept.
Nassau Community College
sherd@polar.sunynassau.edu natarod@nov1.cmp.sunynassau.edu

Prostaphaeresis Introduction

Prostaphaeretic Formulae

Late 16th Century

Multiplication

Division

Using Cos to Multiply

Similar triangles

Web Page Simulator

Email: sherd@polar.sunynassau.edu

Home Page: http://www.matcmp.sunynassau.edu/~sherd