Recent content by williamrand1

Sorry i made a typo in my function above.. f(x) = -Ln(x/n)/n

Im not sure about a polynomial function. I believe I've come up with a function that works. It a density function got from integrating the following logarithmic function, f(x) = -Ln(x/n). x is position. 1 is first place, 2 is second place etc. n is the total number of payouts. The...

Hi did you solve this problem?? I think i understand what you want to do. Do you want the payout to decrease exponentially from first position down to last payout position?

Thanks JJ Is there an exact solution to this?

Thanks pasmith Could you explain why it is not possible?

Hi everyone, Im looking for an autonomous first order ode that has the following properties. For dependent variable x: x(t=∞)=0 x(t=-∞)=0 and the function x(t) has one maximum. Any help would be great. Rgds...

Problem Solved! The problem used a discrete system, not a continuous one. So the linearized solution is y=a^k. so in polar form a=r*exp(iθ) then y=r^k * exp(iθk) so the period would be T=2pi/θ.

Thanks Ibix. I emailed the author of the paper, hopefully he can explained it to me. Ill let you know the result...

Sorry, in the equation for T it should be d not b. Any help would be great. Thanks..

Thanks Ibix. I understand ur point. Im reading a paper and in it a linear stability analysis is done on a model. The characteristic eqt turns out to be, a^2 -(2-d)*a +1=0, a is the eigenvalue and d is a constant from the jacobian matrix. In the paper they say the period of the cycle of the...

The solution to a linear differential equation is, y=exp(ax). If a is complex ,say a=b+ic, then the period is T=2pi/c. My question is, if a is in polar form, a=r*exp(iθ), how is the period then T=2pi/θ. Any help would be great, Thank, Will

Ive figured it out lads so thanks anyway...

Soory for the delay. The language is matlab.

Hi all, Im having a problem with the for loop. Any help would be great! The code is simple, x = -3:0.5:3; For i = x q(i) = i^2; end q The error seems to be the negative index in the statement of the for loop. Hope this is clear. Thanks!

Hi Matt My last post to nasu explains the problem in more detail