Recent content by quacam09

Thanks EnumaElish. Is an analytical solution impossible? If there is a method to obtain an analytical solution, can you suggest me?

Thanks for your help and sorry for unclear things. u^2 is a cross product. It means \[ u^2 (t) = \left[ {\begin{array}{*{20}c} {x_1^2 (t)} \\ {x_2^2 (t)} \\ \end{array}} \right] \\ \] And C(t) C(t) =...

Hello, Can you give some suggestions to solve the following system of 1st order nonlinear differential equations? Thank you. \[ \begin{array}{l} u'(t) = Au^2 (t) + B(t)u + C(t) \\ u(t) = \left[ {\begin{array}{*{20}c} {x_1 (t)} \\ {x_2 (t)} \\ \end{array}} \right] \\ A = \left[...

Thank you.

Thank you.

Thank you for your response. Are there any method to solve approximately it? Can you give me a suggestion?

Hi all, Do you know how to solve the following inequations? \ln \left( {\frac{{x + a}} {{x + b}}} \right) \leq cx + d \ln \left( {\frac{{x + a}} {{x + b}}} \right) \geq \frac{{x^3 + cx^2 + dx + e}} {{ux^2 + vx}} a, b, c, d, e, u, v are constants. x is a variable. Can you suggest...

Thank you. As your suggestion, I found the solution.

Hi all, I have a question about probability. Can you help me? There are 2 events: - Customer A arrives the system B in accordance with a Poisson process with rate Lambda1 - Customer A arrives the system C in accordance with a Poisson process with rate Lambda2. Given that Poisson...

OK. Thank you for your help!

Sorry, "At least one customer" mean we can have one, two, ...or N customer arrive by time t. N processes are mutually independent and homogeneous Poisson processes with rate Lamda. So at time t, we can have two customers arriving.

Thank you for your response! Can you explain your idea in detail? Is the following solution correct? Consider the queueing system, there are n customers 1, 2, ...N. Customer 1 arrives in accordance with a Poisson process with rate Lamda, customer 2 arrives in accordance with a Poisson...

Hi all, I have a probability problem. Can you help me? Thank you! Here is the problem: Consider the queueing system, there are n customers 1, 2, ...N. Customer 1 arrives in accordance with a Poisson process with rate Lamda, customer 2 arrives in accordance with a Poisson process with rate...