6 citations · 12 across the 7 of their papers we have counts for
7 papers
The Reconstructions of Konrad Zuse's Z3 Computer
Raul Rojas
This paper reviews the various reconstructions of Konrad Zuse's Z3 computer, built in 1941. The first is the reconstruction made by Zuse himself in the 1960s, which is now housed a…
The First Computer Program
Raúl Rojas
In 1837, the first computer program in history was sketched by the renowned mathematician and inventor Charles Babbage. It was a program for the Analytical Engine. The program cons…
Development and Experimental Validation of a Viscosity Meter for Newtonian and Non-Newtonian Fluids
Raúl O. Rojas, Juan C. Quijano, Claudia P. Tavera Ruiz +1
The study of viscosity, in the area of fluid physics at a university level, is of great importance because of the various applications that are presented in the different fields of…
The Keynesian Model in the General Theory: A Tutorial
Raul Rojas
This small overview of the General Theory is the kind of summary I would have liked to have read, before embarking in a comprehensive study of the General Theory at the time I was…
The Design Principles of Konrad Zuse's Mechanical Computers
Raul Rojas
Konrad Zuse built the Z1, a mechanical programmable computing machine, between 1935/36 and 1937/38. The Z1 was a binary floating-point computing device. The individual logical gate…
The Z1: Architecture and Algorithms of Konrad Zuse's First Computer
Raul Rojas
This paper provides the first comprehensive description of the Z1, the mechanical computer built by the German inventor Konrad Zuse in Berlin from 1936 to 1938. The paper describes…
The straight line, the catenary, the brachistochrone, the circle, and Fermat
Raul Rojas
This paper shows that the well-known curve optimization problems which lead to the straight line, the catenary curve, the brachistochrone, and the circle, can all be handled using…