Application of U BASIC to Chemical Calculations

Yoshio NARUSAWA* and Yuichi MIYAMAE

Department of Chemistry, College of Science, Rikkyo(St.Paul's) University
3-34-1, Nishi-Ikebukuro, Toshima-ku, Tokyo 171 JAPAN

(Received: February 8, 1993, Accepted: April 30, 1993)

We have examined the differences of computational errors and abilities of UBASIC, N88BASIC and FORTRAN's curve-fitting programs by calculating the leastsquares method. As a result, the maximum orders of polynomials possible for N88BASIC and MS-FORTRAN was 11th, and for Sun-FORTRAN was 23rd. UBASIC could calculate up to 50th. Calculation of FORTRAN programs made clear to be meaningless in the higher order of polynomials, because of precisional errors.

Keywords: Application of UBASIC, Least squares method, Curve fitting, FORTRAN

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