Fragments: Posts tagged 'pointers'urn:https-www-tfeb-org:-fragments-tags-pointers-html2015-07-21T16:22:16ZCovariance and contravarianceurn:https-www-tfeb-org:-fragments-2015-07-21-coco2015-07-21T16:22:16Z2015-07-21T16:22:16ZTim Bradshaw
<p>Physicists seem still to be taught about tensors as being, essentially, multidimensional arrays with special transformation rules which must be learned by rote. So I wrote a document which tries to present a more useful approach.</p>
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<p>The aim of this document was to present a more modern, ‘geometrical’ approach, while not requiring too much background in differential geometry. I don’t suppose anyone read it when I posted pointers to it on reddit, and certainly no-one will read it now, but <a href="/texts/2015/coco.pdf">here it is</a><sup><a href="#2015-07-21-coco-footnote-1-definition" name="2015-07-21-coco-footnote-1-return">1</a></sup>.</p>
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<li id="2015-07-21-coco-footnote-1-definition" class="footnote-definition">
<p>This URL might change (and has already changed: it used to be on Dropbox). <a href="http://www.tfeb.org/fragments/2015/07/21/coco/">This post itself</a> is a better link to remember as I will update the pointer if I move the document. <a href="#2015-07-21-coco-footnote-1-return">↩</a></p></li></ol></div>