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The Flash Forum resource shows velocity and acceleration vectors for an arbitrary parametric curve in space, and provides built in examples. Flash source code is provided.

Functions Grapher

Graph functions, zoom on points, and find points of intersection of multiple graphs.

Exploring the Goodness of Fit in Linear Models

An article on the use of dynamic tools in Excel to explore goodness of fit of linear models

The Probability/Statistics Object Library

A Developers' Area article about a library of reusable applets for instructional materials in probability and statistics

Guidelines for Loci Authors

ABO Blood Group Frequencies

A Bioquest ESTEEM module in the Genetics Category. The purpose of this workbook is to compare several methods for calculating allele frequencies for ABO blood groups.

Editor's Notes, October 2004

Update from the Editor on the latest materials published in JOMA

Seashells: the Plainness and Beauty of Their Mathematical Description

In this article, a very simple model is used to describe and generate many types of seashell shapes.

Split Decomp

A Biological ESTEEM module in the Phylogenetics Category. This worksheet performs split decomposition on a set of four DNA sequences and their associated amino acid sequences.

Dealing with Data: A 'Simple' Linear Fit

A module for exploring the best linear fit to a set of two-dimensional data