Recent content by Drazick

There is a simple and already built in. If you answer a question and you're afraid its context will be changed (Deleted, data will be altered, etc...) just use the Quote button. It can be added to guidelines, someone who answers and Home Work question, please use the Quote button. This works...

Again, in order to prevent people from emptying their "Question" the writer has simple solution - Quote. It is much more elegant. I, for one, don't like being treated as potential run away. I guess other doesn't care. People should own their posts and be able to edit them anytime freely. Those...

Clutter? Any respond by others can include "Quote" if they are afraid the context will be changed. Yet again, those are not legal contracts, can't see situation when someone tries to fail other by editing after responses are made. The forum crowd doesn't seem to be that kind of people.

Why is that? I found a mistake few days later, why not have the ability to edit? Those are not legal contracts.

Would you please allow editing of posts? It is something basic in any forum. Not being able to edit posts is really very harsh thing to do.

Defining ## a \left[ k \right] = {2}^{- \left| k \right|} ##. Moreover, the Auto Correlation function of ## v ## defined as ## {r}_{vv} \left[ k \right] = \left \langle {v}^{\left( 0 \right)}, {v}^{\left( k \right)} \right \rangle = \sum_{n = -\infty}^{\infty} {v}_{n} {v}_{n - k} ##. Pay...

Homework Statement Given ##v = {\left\{ {v}_{i} \right\}}_{i = 1}^{\infty}## and defining ## {v}_{n}^{\left( k \right)} = {v}_{n - k} ## (Shifting Operator). Prove that there exist ## \alpha > 0 ## such that $$ \sum_{k = - \infty}^{\infty} {2}^{- \left| k \right|} \left \langle {v}^{\left (...

vNanIdx = find(isnan(mData)); mData(vNanIdx) = mData(vNanIdx - 1); Remember MATLAB is Column Major, hence if the Previous item is according to the row, permute the array accordingly (Or use something which depends on the dimensions of the array instead 1). Pay attention it won't work if the...

You're saying it is equivalent to show your eigen values inequality to the statement above?

Hi, Could you show your steps? Thank You.

Yea, this is what I tried. I was after something more elegant.

The Condition Number is the division of the largest Eigen Value by the Smallest (Under L2 Norm): https://en.wikipedia.org/wiki/Condition_number The symbol ## \kappa \left( A \right) ## stands for the condition number of ## A ##. Thank You.

Given a Positive Definite Matrix ## A \in {\mathbb{R}}^{2 \times 2} ## given by: $$ A = \begin{bmatrix} {A}_{11} & {A}_{12} \\ {A}_{12} & {A}_{22} \end{bmatrix} $$ And a Matrix ## B ## Given by: $$ B = \begin{bmatrix} \frac{1}{\sqrt{{A}_{11}}} & 0 \\ 0 & \frac{1}{\sqrt{{A}_{22}}}...

I solved more general identity. I'll post it later.

Homework Statement The Identity to prove: Homework Equations Using Integration by parts The Attempt at a Solution I couldn't produce the denominator.