Mathematical and Logical Methods and Tools

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Speedmath:

•  SpeedMath— Training program to improve mental math skills.
•  Mental Math— Techniques for improving mental math skills. And see
•  BEATCALC: Beat the Calculator!— Techniques and exercises.
•  Curious and Useful Math— Still more techniques.
•  Casting Out Nines, Jim Loy— Useful technique for checking arithmetic calculations.

Logic tools:

•   Logical Fallacies— July, 1998.

Math tools:

•  Quantitative Analysis History— Survey of the elements of the subject.
•  Nonlinear Regression Analysis on a Spreadsheet, by Paul H. Ricketts— Most spreadsheets have the capability of performing a polynomial regression analysis of any order.
•  Multiple Regression— Discussion of tools to analyze the relationship between several independent or predictor variables and a dependent or criterion variable.
•  NLREG— Statistical analysis program that performs linear and nonlinear regression analysis, surface and curve fitting, and serves as a good educational tool for the subject.
•  Elements, Euclid (~325-265 BCE) — Classic text on Euclidean geometry, never exceeded.
•  Strategy and Conflict: An Introductory Sketch of Game Theory, by Roger A. McCain— Beginnings of a textbook on the subject.
•  Set theory and physics— Discusses mathematical foundations of the field.
•  Quantum Logic and Probability Theory — Discusses connection between the fields.
•  Regression Analysis of Time Series (RATS)— Econometrics/time-series analysis software package used worldwide by economists and others for analyzing time series and cross sectional data, developing and estimating econometric models, forecasting, and much more.