Recent content by SteliosVas

  1. SteliosVas

    System of Equations Homework: 4 Unknowns, 5 Equations

    Yes it made much more sense, I eventually worked it out. Was a lot easier than I thought!
  2. SteliosVas

    Engineering Nodal Analysis of a combo circuit

    Homework Statement Attached is a image of the circuit that I am attempting to analyze:Homework Equations KCL The Attempt at a Solution So I know I should assign a place in the circuit where I should preform KCL after selecting a reference point. I selected the reference point as the 2ohm...
  3. SteliosVas

    System of Equations Homework: 4 Unknowns, 5 Equations

    Sorry about the title. Okay that I know what A equals and that b equals (0,0,0,1). Would I be able to do A^-1 * b to get the solutions of X?
  4. SteliosVas

    System of Equations Homework: 4 Unknowns, 5 Equations

    Yes that does help a little bit. So you are saying if i late out a matrix like this: 1 -1/2 0 0 0 -1/3 1 0 -1 0 -1/3 -1/2 1 0 inverse * 0 1 1 1 1 1 i can solve? Update: I can eliminate equation 4But how can i eliminate it?
  5. SteliosVas

    System of Equations Homework: 4 Unknowns, 5 Equations

    Homework Statement Okay this is the problem it seems so easy but i just cannot for the life of me get it to click into my mind, I have 4 unknowns and 5 equations and i have to put it into a matrix and try solve it matricies or eigenvalues/eigenvectors. The 5 equations are: a= b/2 b=a/3 + d...
  6. SteliosVas

    How do I find the distance between two lines passing through different points?

    Homework Statement Okay thanks everyone for taking the time to read this quesiton. Now I sort of know how to do this question but I am not entirely sure how I should approach it: I have points A(2,1,2) B(3,2,-1) C(-1,2,4) and D(-2,1,3) Now a line passes through points A and B and also C and...
  7. SteliosVas

    Is there a way to verify the correctness of decoupled linear ODE solutions?

    Okay so i have 2 ODE's i need to decouple them and therefore construct two differential equations each containing just one of the functions... I just wanted to know how can you verify you have the correct solution is more so my question du/dt= 4u-5v dv/dt=2u-3v I end up getting for u(t) =...
  8. SteliosVas

    Indefinite integral and proving convergence

    Right now I understand. So the absolute of f(x) is always said to converge but the the opposite isn't always true ? Right do we are performing a comparison test to x/(x^3-1)
  9. SteliosVas

    Indefinite integral and proving convergence

    Therefore using the comparison test should i compare this integral to 1/x3 over the same interval?
  10. SteliosVas

    Indefinite integral and proving convergence

    Homework Statement okay so the equation goes: ∫(x*sin2(x))/(x3-1) over the terminals: b= ∞ and a = 2 Homework Equations Various rules applying to the convergence or divergence of integrals such as the p-test, ratio test, squeeze test etc The Attempt at a Solution Okay so I have tried...
  11. SteliosVas

    Second Order Non linear ode matlab

    Homework Statement Okay the problem is of a free swinging pendulum with dampening which is modeled using the following equation: Damping coefficient: c=1 s−1 Mass: m=1 kg Gravity: g=9.81 ms−1 Link length: l=0.5 m We know θ(0)=90° and θ′(0)=0, solve this equation from t = 0 to t = 10...
  12. SteliosVas

    Solving Rand Function MATLAB Homework

    Essentially what I want to do is generate two random numbers and their product being less than 1e-05. That is all in trying to do.
  13. SteliosVas

    Solving Rand Function MATLAB Homework

    Homework Statement The number of iterations it takes for the product of two random numbers to produce a number less than 1e-5. Homework EquationsThe Attempt at a Solutionwhile z < 1e-05 count1 = count + 1; x = rand(1,1); %rand 1x1 matrix z = floor(a + (b-a+1) * rand(b,1)); if z <...
  14. SteliosVas

    Signum Function Matlab Homework Solution

    Is this simplifying what I had, in the sense it is putting the signum function into a logical statement?
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