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.

Current version: 8.

[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)].