Easy Z Mount
Piggy back as many as 3 modules with no further loose mounting problems. Also allows for quick mounting or removal.
Timex/Sinclair 1000
Financial Analyzer
Home and personal financial calculations. Mortgage principal pre-payment; projected IRA value; true yield on investment; standard interest rate calcuations. 16K.
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Information 1000
Store names, complete addresses and phone numbers. Number of entries is limited only by free RAM. Provides search facility, output to printer, 10 options. 16K.
Insurance Records
Complete record-keeping of household/business belongings. Keeps track of costs, dates purchased, descriptions, serial numbers, assessed values, etc. Combine with photos of small items for complete recovery in case of fire or burglary. 16K.
Ionisation
Plots ionisation energies for input groups/periods as required for chemistry courses. Important patterns are shown graphically. 10-12th grade. 16K.
Linearsystems3.0
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.
Linreg4.0
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.
Numerint4.0
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.
ROM Reader
Translates the contents of the Sinclair BASIC operating system into Z80 mnemonics, hexadecimal of codes, and “nn” data from the PEEKed decimal values. 16K.
SIFT I
Statistical Interactive system for the Timex/Sinclair 1000 and ZX81 computers, Vol I. Sixteen 2K statistical routines such as: Linear and Multiple Linear Regression with transformations; One-Way, Two-way and Latin Square Analysis of Variance; and T-tests, plus other Non-Parametric two sample tests. A user’s manual (82 pages) with worked out examples and interpretation is included. 2K.
Statistical Programs
Regression, ANOVA, Complete Block, Randomized Block, and Latin Squares.
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