November 1964 - Vol. 7 No. 11
Features
An inductive approach to language translation
The possibility of natural language translation by means of fixed operations on example translation is considered. The conception of sentence translation which motivates…
Rounding problems in commercial data processing
A common requirement in commercial data processing is that the sum of a set of numbers, rounded in a generally understood manner, be equal to the sum of the numbers…
Multiple-precision arithmetic and the exact calculation of the 3-j and 9-j symbols
Described in this paper is a system of general-purpose multiple-precision fixed-point routines and their use in subroutines which calculate exactly the quantum-mechanical…
The Vocabulary Subcommittee of the International Standards Organization's Technical Committee on Computers and Information Processing (ISO/TC97/SC1) held its third…
A technique for reading gapless tapes makes electrocardiograph analysis feasible on the IBM 7090
To study arrhythmias and higher frequency components of the electrocardiogram, long series of patient heart cycles must be examined before valid comparison of different…
Estimation of heart parameters using skin potential measurements
A fundamental problem of vectorcardiography is the estimation of the state of the heart on the basis of skin potential measurements.…
An executive system implemented as a finite-state automaton
The 473L command and control system used by the Air Force permits many operators to access large data files through the use of a computer. The man-machine interface is…
Time sharing in a traffic control program
The Toronto traffic-signal control system consists of a variety of logically distinct computer programs, all competing for machine time. To satisfy these demands, a…