Precise Scientific Computation with a Microprocessor

Authors:
Oliver Aberth
Affiliations:
Department of Mathematics, Texas A&MUniversity, College Station, TX 77843.
Venue:
IEEE Transactions on Computers
Year:
1984

Citing 6
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Abstract

When a high-level programming language is used for scientific computation, usually one must use standard floating point and choose the precision驴single, double, or higher驴before one's program executes. This paper describes a modified Basic that accommodates the advanced computation techniques of dynamic adjustable precision and interval arithmetic. This language驴Precision Basic or Pbasic驴allows a user to routinely obtain his n decimal place answers accurate to the last decimal place. An interpreter for this modified Basic was recently completed that runs on a Z-80 microprocessor. Some features of the interpreter are described.