Recent content by fluxions

Here's a quote of Norbert Wiener: "It is not essential for the value of an education that every idea be understood at the time of its accession. Any person with a genuine intellectual interest and a wealth of intellectual content acquires much that he only gradually comes to understand...

What, exactly, are your marketable skills? The 'social skills' thing is your fault. You need to get out there and learn how to interact with 'commoners.' The first step is to realize that people don't care to hear how great you think you are. I suggest you find a job in the food service...

By your own admission, you have no marketable skills, no social skills, no friends, no family to help you, no money, and a frail constitution. You are nearly homeless. This seems like fairly strong evidence that your life strategy needs to be revised.

Has a member of the Tea Party ever been bullied so relentlessly that their only (perceived) recourse was to commit suicide? And yes, kids can be quite cruel; that is clearly not unique to kids though. I think this may be a perversion of the 'tit-for-tat' morality that a lot of people...

One can write \vec{r} = r \hat{r} . You are given that the length is always 1, so what can you conclude about r? Then note that \vec{r} \cdot \vec{r} = r \hat{r} \cdot r \hat{r} = r^2 . Insert the value of r you figured out above, and differentiate this expression with respect to time. You...

Perhaps. I haven't looked into the matter. In any case, it is evident that it is possible to be bullied for being a member of a group without publicly self-identifying as a member of that group. This is in contrast to your claim in post #36 wherein you essentially (at least this is how I...

Some kids are bullied just for being perceived as gay.

I figured it out while sleeping. The singular values of T are the eigenvalues of \sqrt{T^*T} which is a self-adjoint operator, and therefore has real eigenvalues. So s_i = \overline{s_i} for each i. The desired relation follows.

Homework Statement Let T be a linear transformation over V, a finite-dimensional complex inner product space (with inner product < , >). Suppose T has the singular value decomposition Tv = \sum_j^n s_j \left\langle v,e_j \right\rangle f_j where s_1, ... s_n are the singular values of T and...

Homework Statement A star of mass M and radius R is moving with velocity v through cloud of particles of density \rho . If all the particles that collide with the star are trapped by it, show that the mass of the star will increase at a rate \frac{dM}{dt} = \pi \rho v \left(R^2 +...

Still stuck on this problem. I can write, using the expression for x given in the link and the relation between u,v,w, and alpha x = \frac{2}{g} v^2 \sin\alpha \cos\alpha - \frac{8 \gamma}{3 g^2} v^3 \cos\alpha \sin^2\alpha Maximizing this function wrt. to v doesn't lead to the...

Then start programming and stop worrying about your IDE having pretty colors.

The standard 'introductory' book on algorithms is https://www.amazon.com/dp/0262033844/?tag=pfamazon01-20. But attempting to read that book before having some basic programming experience and sufficient mathematical sophistication is futile. When you're ready, there is an OCW based on the book...

I use IDLE, which comes with the Python distribution. It should work just fine for you while you are still learning the basics.