Yuji Kida <kida@rkmath.rikkyo.ac.jp>.
An extension of
BASIC for
symbolic mathematics and
number theory.
UBASIC supports bignums, fractions, complex numbers,
polynomials and integer factorisation. It runs under
MS-DOS
and is written in
assembly language.
Latest version: 8.
ftp://ftp.simtel.com/math/utk/software/msdos/number.theory/ubasic/.
[Review, W.D. Neumann, Notices of AMS 36 (May/June 1989)]
["A math-oriented high-precision BASIC", Notices of the A.M.S,
38 (Mar 1991)].