http://code.activestate.com/recipes/tags/scipy-black/2010-05-01T18:04:39-07:00ActiveState Code Recipes2010-05-01T18:04:39-07:00Micha Kalfonhttp://code.activestate.com/recipes/users/4173851/http://code.activestate.com/recipes/577213-incremental-pca/

<p style="color: grey"> Python recipe 577213 by <a href="/recipes/users/4173851/">Micha Kalfon</a> (<a href="/recipes/tags/incremental/">incremental</a>, <a href="/recipes/tags/klt/">klt</a>, <a href="/recipes/tags/learning/">learning</a>, <a href="/recipes/tags/numpy/">numpy</a>, <a href="/recipes/tags/pca/">pca</a>, <a href="/recipes/tags/scipy/">scipy</a>, <a href="/recipes/tags/svd/">svd</a>, <a href="/recipes/tags/vision/">vision</a>). </p> <p>An incremental PCA algorithm in python. </p> <p>Incremental PCA allows computing an approximation of the principal components on large data sets as observations are given sequentially.</p>

2009-05-19T05:18:00-07:00alexander bakerhttp://code.activestate.com/recipes/users/4166679/http://code.activestate.com/recipes/576762-newton-raphson-root-finding/

<p style="color: grey"> Python recipe 576762 by <a href="/recipes/users/4166679/">alexander baker</a> (<a href="/recipes/tags/numerical/">numerical</a>, <a href="/recipes/tags/scipy/">scipy</a>). </p> <p>Newton Raphson Root Finding</p>

2009-05-19T05:24:37-07:00alexander bakerhttp://code.activestate.com/recipes/users/4166679/http://code.activestate.com/recipes/576765-quick-numerical-integration/

<p style="color: grey"> Python recipe 576765 by <a href="/recipes/users/4166679/">alexander baker</a> (<a href="/recipes/tags/integration/">integration</a>, <a href="/recipes/tags/scipy/">scipy</a>). </p> <p>Quick Numerical Integration</p>

2009-01-21T15:37:13-08:00David Lamberthttp://code.activestate.com/recipes/users/4167420/http://code.activestate.com/recipes/576625-poor-mans-mgrid/

<p style="color: grey"> Python recipe 576625 by <a href="/recipes/users/4167420/">David Lambert</a> (<a href="/recipes/tags/index/">index</a>, <a href="/recipes/tags/index_tricks/">index_tricks</a>, <a href="/recipes/tags/method/">method</a>, <a href="/recipes/tags/mgrid/">mgrid</a>, <a href="/recipes/tags/numerical/">numerical</a>, <a href="/recipes/tags/numerical_methods/">numerical_methods</a>, <a href="/recipes/tags/numpy/">numpy</a>, <a href="/recipes/tags/scipy/">scipy</a>, <a href="/recipes/tags/trick/">trick</a>). </p> <p>Python 3 code. scipy.mgrid is a useful! This short implementation comes without installing numpy.</p>

2008-10-31T06:25:13-07:00Lorenzo Isellahttp://code.activestate.com/recipes/users/4143130/http://code.activestate.com/recipes/576547-code-to-solve-smoluchowsky-equation/

<p style="color: grey"> Python recipe 576547 by <a href="/recipes/users/4143130/">Lorenzo Isella</a> (<a href="/recipes/tags/email_sending/">email_sending</a>, <a href="/recipes/tags/nonlinear/">nonlinear</a>, <a href="/recipes/tags/pylab/">pylab</a>, <a href="/recipes/tags/scipy/">scipy</a>, <a href="/recipes/tags/smoluchowski/">smoluchowski</a>). </p> <p>This is a research code which solves Smoluchowski equation for coalescing particles. It also can login into a gmail account (login data to be obviously provided by the user) and send an email with one of the generated output pdf files as an attachment.</p>