Journal Article10.1109/TC.1977.1674753
An Incremental Computer
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TL;DR: A variable high-speed incremental computer that adopts the basic concept underlying a digital differential analyzer (DDA) and includes the following features: floating-point arithmetic, a word-length transfer with the elimination of a residue (R) register, multibit multiplication, and a flexible software scheme of interconnections that includes the use of a stack to avoid redundant operations.
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Abstract: The article describes a variable high-speed incremental computer that adopts the basic concept underlying a digital differential analyzer (DDA). Its structure closely resembles that of a microprocessor and includes the following features: floating-point arithmetic, a word-length transfer with the elimination of a residue (R) register, multibit multiplication, and a flexible software scheme of interconnections that includes the use of a stack to avoid redundant operations. The proposed structure has been simulated by solving a variety of differential equations with distinctly accurate results.
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Citations
Curve generation of implicit functions by incremental computers
TL;DR: Incremental computers are suitable for curve generation of implicit functions by the new method, because the incremental computer can perform more complex algorithms than the analog computer and can calculate faster than the digital computer.
5
Suppressing limit cycles in digital incremental computers
Ian H. Witten,P. McCrea +1 more
TL;DR: This correspondence examines the sources of limit cycle oscillations in Digital Incremental Computers and proposes several different methods for their suppression.
4
Incremental generalized integrator
A I Ahmad Sheikh,A A Kadhom +1 more
TL;DR: A new generalized integrator with an improved performance that has a partially digital architecture and is implemented without precluding neither the direct interfacing of the unit to the analogue computer nor the provision of an economical computing unit.
2
References
Computation of ion trajectories in the monopole mass spectrometer by numerical integration of Mathieu's equation
Abstract: A high speed digital computer used with an off-line curve plotter enabled ion trajectories to be readily obtained in terms of the initial conditions and the parameters appearing in the differential...
42
The Extended Resolution Digital Differential Analyzer: A New Computing Structure for Solving Differential Equations
TL;DR: It is shown that DDA speed and accuracy can be greatly improved by using increment word lengths which are approximately one-half the length of integrand registers providing that integration formulas more accurate than Euler integration are used.
37
Design of a high speed DDA
Mark W. Goldman
- 30 Nov 1965
TL;DR: New techniques in DDA design which were developed in order to meet the solution time objectives are concerns with the digital differential analyzer design.
13
The binary floating point digital differential analyzer
J. L. Elshoff,P. T. Hulina +1 more
- 17 Nov 1970
TL;DR: The digital differential analyzer, DDA, was developed to replace the analog computer in the solution of differential equations and is capable of more accurate results since its accuracy is not bounded by its component characteristics.
11
Electrically alterable digital differential analyzer
Gilbert P. Hyatt,Gene Ohlberg +1 more
- 30 Apr 1968
TL;DR: The Teledyne Electrically Alterable Digital Differential Analyzer (TEADDA), which is a high speed completely parallel "digital analog" of an analog computer, which can overcome accuracy limitation on high speed simulation requirements.
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