The binary floating point digital differential analyzer

Abstract

Twenty years ago the digital differential analyzer, DDA, was developed to replace the analog computer in the solution of differential equations. Although the DDA is slower than the analog computer, the DDA is capable of more accurate results since its accuracy is not bounded by its component characteristics. The cost of solving differential equations with the DDA is quite low compared with other methods such as a general purpose machine, since the DDA is a more simple device.