Arizoftx

Two games: ‘Code Cracker 1’ and ‘Tic-Tac-Toe’. Variable skill levels. All ages. 16K.

Analytical and record keeping system for chess players. Displays a chessboard upon which pieces can be moved, eight positions stored and recalled, sixteen commands provide flexibility. Filetape5.0 (included) permits storage on tape of six positions per file. 16K.

Solves set of linear system equations of up to twenty real, or ten complex-valued unknowns. Uses Gaussian elimination with partial pivoting to minimize effects of round-off error. Returns measure of sensitivity of solution to element value perturbations. 16K.

Accepts up to 99 pairs of data points and computes parameters of straight line having best Least-Mean-Square fit to data. Menu selected operations enter data, compute and display parameters, compute and display RMS error and correlation co-efficient, and calculate y-values from input x-values using linear equation. 16K.

Drill program for addition, multiplication, subtraction, division. Program grades responses, displays answers. Guide included. For grades 1-6. 16 or 64K.

Play against the computer in this simple board game. 16K.

An adaptive quadrature numerical integration routine based upon a Newton-Cotes eight panel formula. Sub-interval sizes automatically adjust to meet accuracy requirements, thereby greatly enhancing the routines efficiency. User supplies integrand function as subroutine. Returns indicator of solution reliability. 16K.

Improve reading speed and understanding using the tachistoscope method. 16K.

Battle Zorxian fighters, space cruisers, killer satellites and neutron bombs amid black holes. 16K.