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1. Singular feedback functions

Hey guys, good afternoon. Actually im working in cryptography, and reading a paper i found a notation that i cant understand and i´ve been searching a lot but i can´t find the meaning. The paper im reading is A Transformation From the Fibonacci to the Galois NLFSRs (Elena Dubrova). On page 3...
2. Feedback for Algebra 2 Videos

As a way of helping as many as possible with math, I'll be posting videos explaining various concepts on YouTube. You can check out my channel here (Radical Math): https://www.youtube.com/channel/UCS2JSDju0F3xla-GY00wGeg I just launched the channel a couple of days ago, and am constantly...
3. Scaling a Differential Equation: Feedback and Control Systems

Hello everyone. I have been having difficulties with my Feedback and Control Systems coursework, particularly this problem: Problem 3.4: Suppose the input-output behavior of a system is given by the LTI-ODE y''(t) + 3y'(t) + 4y(t) = 6u'(t) + 7u(t) The phenomena described by this...
4. Finding roots of a function using Brook Taylor's method(s) [Feedback]

Finding roots of implicit functions is usually only possible by applying numerical methods that perform iterative calculations starting with a guess or seed value. If such iterative calculations converge towards a values then we assume to have found one of the roots of the underlying function...
5. What is a feedback polynomial good for?

Hi there When I got a linear relation s_{m+2}=s_m-s_{m+1} its characteristic polynomial is x^2+x-1 and its feedback polynomial is -x^2+x+1 but what is the sense of a feedback polynomial? Where is it used? Where is it applied? In engineering or anywhere? Regards
6. feedback coefficient , K

Dear all, I have an equation to solve like below: xdot= Ax+Bu + D u=Kx How to find the feedback coefficient K? A=[1 0 0 0 0 0 0 0 0 0 0;... 0 0 0 0 0 0 0 0 0 0 0;... 0 0 1 0 0 0 0 0 0 0 0;... 0 0 0 0 0 0 0 0 0 0 0;... 0 0 0 0 0 0 0 0 0 0 0;... 0 0 0 0 0 0 0 0 0 0 0...
7. Derivative of arccos (+ feedback :D)

So I posted a lot of questions last night and this morning, I want to say thanks to all those who helped me. I am just back from the exam and yes most of the advice I got from you all was relevant to what came up in it... I believe I will have passed well ONLY because of the advice I got on...
8. closed loop poles and feedback coefficient matrix

I have a matrix equ: syms y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 Ydot = Ay + Bu +H y=[ y2 y3 y4 y5 y6 y67 y8 y9 y10 y11]' u=[u2 u3 u4]' Can someone help me to determine the closed loop poles and feedback coefficient matrix when k =1. A= [k 0 0 0 0 0 0 0 0 0 0;... 0 k 0 0 0 0 0 0 0 0...
9. Optimization, need feedback on my solution please :)

So, here is the link to my "problem" and my solution is there beneath.. Advanced Math Answers | Optimization a lil question, A farmer has a specific amount of area for his sheeps tp sta This is a rather easy example, I just want your opinion please... Do you agree with my solution.. or has...
10. ebay feedback percentages

Hello Im new to the forum and would like to know how to calculate the additional number of sales i need to make in order to increase my feed back from 99.8 to 99.9 ? I cuurently have 887 sales and 2 negatives and the feedback is calculated by 887 / (887+2) = %age feedback. can anyone help ?
11. Looking for Solution Feedback

Could someone please review this problem that I have attempted to simplify. I'm not sure but I believe that I have completed everything correctly. log_{5}\frac{5^{-2x} (25)^y}{\sqrt{125^x}} \Rightarrow\log_{5}5^{-2x}+\log_{5}25^{y}-\log_{5}\sqrt{125^{x}}...
12. Feedback

Hello and thanks for a great forum. I just need some feedback on my calculations. I need to integrate this 1/x^2(1+x)(1+x^2). Was thinking of doing it by factorisation. This is how a proceded. Setting up the coefficients A/x + B/x^2 + C/(1+x) + (Dx + E)/(1+x^2) I multiply the...
13. Request feedback on basic integration concept

In my calculus text I have found something which is either a typo or a basic concept which I'm missing. I'd be grateful for opinions. (By the way, this is not the first such question I've posted. It's not being pedantic; rather, I just want to ensure I'm not learning the wrong thing, or...