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Mathematics of Computation

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Angstl's mechanism for checking wellformedness of parenthesis-freeformulae

Author: F. L. Bauer
Journal: Math. Comp. 31 (1977), 318-320
MSC: Primary 02-04; Secondary 68A15
MathSciNet review: 0419156
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Abstract: In 1950, H. Angstl invented a mechanical device, the design of which was the functional basis of a later construction of a relay calculator for logical formulae in polish notation. The principles of this device are illustrated.

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Article copyright: © Copyright 1977 American Mathematical Society

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