CLEO - Circuits Learned by Example Online. On our site you will find over 250 examples covering a two-semester course sequence in engineering linear circuit analysis, including AC and DC circuits, phasors, op amps, transients, power, and Laplace-based analysis. The examples are designed by electrical engineering professors who collectively have 15 years experience teaching circuit analysis. You can browse and search for examples that are similar to your own homework problems, giving you the practice and instruction you’re looking for.
Once you work an example as a practice problem, you can check your answer to get quick feedback about how well you can apply what you have learned in class. When you need help working the example, watch a short video in which the professor works the example in detail and explains each step along the way. If you have speakers or headphones, be sure they are turned on so you can follow the professor’s audio explanation, or you can watch the captioned version. Gyre&Gimble. Division by Zero. What’s new. Annoying Precision. The Unapologetic Mathematician. Not Even Wrong. I’ve just replaced the old version of my draft “spacetime is right-handed” paper (discussed here) with a new, hopefully improved version. If it is improved, thanks are due to a couple people who sent helpful comments on the older version, sometimes making clear that I wasn’t getting across at all the main idea.
To further clarify what I’m claiming, here I’ll try and write out an informal explanation of what I see as the relevant fundamental issues about four-dimensional geometry, which appear even for $\mathbf R^4$, before one starts thinking about manifolds. Spinors, twistors and complex spacetime In complex spacetime $\mathbf C^4$ the story of spinors and twistors is quite simple and straightforward.
Spinors are more fundamental than vectors: one can write the space $\mathbf C^4$ of vectors as the tensor product of two $\mathbf C^2$ spaces of spinors. Real forms While the twistor/spinor story for complex spacetime is quite simple, the story of real spacetime is much more complicated. The n-Category Café. Mathematics under the Microscope. Portal.