2003-05-20 06:27:26 -04:00
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<?xml version="1.0"?>
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<document>
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2003-05-21 11:11:54 -04:00
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<properties>
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<title>Tasks: Done And To Do</title>
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</properties>
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2003-05-20 06:27:26 -04:00
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2003-05-21 11:11:54 -04:00
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<body>
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<section name='Aim'>
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<p>
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This page aims to be a handy reference not only of the work done but
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also of work pending for the next planned release. Users who want new
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features should submit patches to this page in the unclassified section
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of this document. Developers who want to lend a hand can grab tasks from
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this page. Everyone can see the progress which is being made.
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</p>
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</section>
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2003-05-20 06:27:26 -04:00
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2003-05-21 11:11:54 -04:00
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<section name="TODO list">
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<p>
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The following is a list of items still <code>TODO</code> for
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Math. Contributions are welcome!
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</p>
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2003-05-20 06:27:26 -04:00
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2003-05-21 11:11:54 -04:00
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<subsection name="High priority">
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<ul>
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<li>
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<strong>Fill Me In!</strong>
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With A High Priority Task
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</li>
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</ul>
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</subsection>
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2003-05-20 06:27:26 -04:00
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2003-05-21 11:11:54 -04:00
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<subsection name="Medium priority">
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<ul>
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<li>
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<strong>Fill Me In</strong>
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With A Medium Priority Task
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</li>
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</ul>
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</subsection>
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2003-05-20 06:27:26 -04:00
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2003-05-21 11:11:54 -04:00
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<subsection name="Low priority">
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<ul>
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<li>
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<strong>Fill Me In</strong>
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With A Low Priority Task
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</li>
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</ul>
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</subsection>
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<subsection name="Unclassified priority">
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Tasklist is based on an email from Phil Steitz on May 21, 2003
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<ul>
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<li>
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Add quantiles (1,5,10,25,50,75,90,95,99) to all Univaraite
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implementations and bootstrap confidence intervals to StoredUnivariate
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implementations.
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</li>
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<li>
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Add higher order moments to StoredUnivariate (UnivariateImpl
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if possible).
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</li>
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<li>
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t-test statistic needs to be added and we should probably add the
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capability of actually performing t- and chi-square tests at fixed
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significance levels (.1, .05, .01, .001).
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</li>
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<li>
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numerical approximation of the t- and chi-square distributions to
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enable user-supplied significance levels.
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</li>
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<li>
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The RealMatrixImpl class is missing some key method implementations.
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The critical thing is inversion. We need to implement a numerically
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sound inversion algorithm. This will enable solve() and also
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support general linear regression.
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</li>
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<li>
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ComplexNumber interface and implementation. The only tricky thing
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here is making division numerically sound and what extended value
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topology to adopt.
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</li>
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<li>
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Bivariate Regression, corellation. This could be done with simple
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formulas manipulating arrays and this is probably what we should aim
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for in an initial release. Down the road, we should use the
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RealMatrixImpl solve() to support general linear regression.
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</li>
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<li>
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Binomial coefficients An "exact" implementation that is
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limited to what can be stored in a long exists. This should be
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extended to use BigIntegers and potentially to support logarithmic
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representations.
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</li>
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<li>
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Newton's method for finding roots
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</li>
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<li>
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Exponential growth and decay
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</li>
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<li>
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Polynomial Interpolation (curve fitting)
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</li>
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<li>
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Sampling from Collections
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</li>
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<li>
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Addition of a Arithmetic Geometric Mean
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</li>
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</ul>
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</subsection>
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</section>
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<section name='Completed'>
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<subsection name='Since Conception'>
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<ul>
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</ul>
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</subsection>
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</section>
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</body>
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2003-05-20 06:27:26 -04:00
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</document>
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