Recent content by The Rev

Does anyone know anything about this? http://tv.yahoo.com/news/wwn/20050912/112653720001.html I'd love to hear what people who know what they're talking about, physics-wise, have to say about this. \phi The Rev

Well, he lost me at Lagrangian, but I did get the feeling that renormalization isn't about cancelling out infinities with simple division. (I know nothing of this higher level math, yet.) I was impressed, however, that singer Joan Baez is also an expert on Quantum Mechanics. \psi

Is this how they cancel out infinities in renormalization in QM?

Is it a reasonable statement to say either: 1) \frac{\infty}{\infty} = 1 ? 2) \frac{0}{0} = 1 ? \phi The Rev

Tensors, eh? Well, that's a ways off. Thanks! \psi The Rev

I was thinking of a matrix like the one above, with rows and columns (x & y vertices) AND some kind of z vertex (depths?) so the matrix formed a cube instead of a square (or a hypercube, etc.). Is this what you mean? (I'm inferring from your post that you're a few textbooks ahead of where I am...

What about Beelzebob? :smile: The Rev

But few means. I run into the same thing. When I ask a question, often the answer is more descriptive than creative, and I get the impression that many people here do not ask themselves anything really off the wall about their areas of expertise. \psi The Rev

Sweet. :smile: The Rev

I've been learning about 2D matrices in algebra, like the one below, and was wondering if there were matrices in higher maths that used 3 or more dimensions, and if someone would describe or provide an example. Just curious. \left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]...

If we could work \phi and \frac{1}{137} in there somehow, we might have the meaning of life. (Wouldn't it be cool if the resulting equation solved to 42?) -0 The Rev

No, sorry. I just love elegant stuff like that, so I place it between the end of my post and my name. It's a self-indulgence thing. \phi The Rev

When you solve a problem incorrectly, what's the usual culprit? Is it a "stupid mistake" (such as accidentally adding when you should have subtracted, etc.) or is it a misapplication of a skill? For myself, as I go along in my learning, whenever I get into trouble in an equation, 9 times out...

Thanks for the clarification! \phi The Rev

I'm graphing equations, and I ran into a snag. I assumed that the graph would be the same for both of the following: y=x^2 and y=-x^2 since any negative number squared is equal to it's absolute value squared. However, the book showed equation 2 as having an inverted graph of equation...