tohid shamspour

 

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applications

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28 Jun 2006		Genetic Algorithms Application Drawing the largest circle in a space of stars without enclosing any of them using Genetic Algorithm Author: Wesam Elshamy	applications, ga, genetic algorithms, multiobjective, optimization	24	3	3.75 3.8 | 4 ratings

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13 Jul 2007		Non-homogeneous and linear-differential-equation solutions (update:13-07-07) homogen and non-homogen solution Author: Ali OZGUL	differential equation..., linear differential e..., homogeneous, special solution, math	3	3	2.5 2.5 | 2 ratings

Comments and Ratings Matching tohid's Watch List			1-3 of 3
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07 Jul 2008	Non-homogeneous and linear-differential-equation solutions (update:13-07-07) homogen and non-homogen solution	Mohammad Rahman	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% hi all, the following code that i have written is giving error while i run it. can anyone help me to find out the bug? %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% TT = 50*10^-9; a = 0.2; I0 = 6* 10^13; z1 = 1.5*10^7; z2 = 1.65* 10^6; z = 2/(1/z1 + 1/z2); %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% for i=1:1:150 t(i)= -1e-9+i/1e-9; if (t(i) <= TT/2) Ip(i) = I0*t(i)*2/TT ; else Ip(i)= I0 - 2* I0*(t(i) - TT/2)/TT; end sol(i) = Dsolve ('Dl = 2*p/z, D2l = (Ip(i)-(z/2+3/(4*a))*(Dl)^2)/(3*z/(4*a))', 'l(0) = 1e-10, p(0) = 1e5', 't(i)') % Sol(i) = dsolve ('DL(t(i)) = 2*P(t(i))/z', 'DP(t(i))= (Ip-(3*P(t(i))/(2*a)+1)*(L(t(i))))/L(t(i))', 'L(0) = 1.*^-10', 'P(0) = 1.*^5', 't(i)'); %Solution = DSolve [{L'[t] ==2*P[t]/z, P'[t]==(Ip-(3*P[t]/(2*a)+1)*(L' [t]))/L[t], L[0] == 1.*^-10, P[0] == 1.*^5}, {P[t], L[t]}, {t, 0,3*TT}]; %Solution = NDSolve[L'[t] == 2*P[t]/z, L[t], {t, 0, 3*TT}]; end	4
25 Oct 2007	Non-homogeneous and linear-differential-equation solutions (update:13-07-07) homogen and non-homogen solution	riendy setiadi	i think it is awful, sorry but i just give a critic. i think it should be tidy n not make a guest confuse.thx	1
06 Jul 2007	Non-homogeneous and linear-differential-equation solutions (update:13-07-07) homogen and non-homogen solution	Ali Özgül	[1] In homsolution.m sub-function is appearing error: FOR may not be aligned with its matching END. But, this errors not appear my m-lint test and intersting this program running this m-lint error. [2] Example.m main-file appear Help-warning error, But this file in possible, description, example and syntax-line Why this errors appear? Can you send me submission this reason, I will be happy.	Comment only