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non-linear ODE need solution
I need to solve an equation of the form a(y')^2+by'+c(y'*exp(-y))/r^2+d=0 where y' is the derivative of y with respect to r. Ple...
9 years ago | 0 answers | 0
0
answersQuestion
Solving for a function
I am trying to solve for n_{H0} in the following physical equation:
9 years ago | 0 answers | 0
0
answersQuestion
Solving for a function, quite confounding
I am trying to solve for n_{H0} in the following physical equation:
9 years ago | 1 answer | 0
1
answerQuestion
invalid permutation index trapz
I would appreciate help on this. When I run the following: tAU_e=zeros(1,1000); %iconism II; z=linspace(0,15,1000...
10 years ago | 1 answer | 0
1
answerQuestion
minor integrative trapz assistance
I try the following: c=3e8; eta=zeros(1,31); for xx=linspace(0,30,31); x=0:xx; if x==0 ...
10 years ago | 1 answer | 0
1
answerQuestion
small trapz clarification needed
I would appreciate some clarification. I attempt the following: zz=zeros(1,31); for xx=linspace(0,30,31); x=0:xx...
10 years ago | 1 answer | 0
1
answerQuestion
Error Message: Subscript indices must either be real positive integers or logicals. This occurs when running the for loop for the very last value of a. Perhaps someone may be able to assist me.
sigma_lam=.7; sigma_m=.3; sigma_k=1-sigma_m; intgr=ones(1,1101); z=0:1100; zint=(z+1).^(-1); D_1=((sigma_lam*((z+1).^(-3))...
10 years ago | 1 answer | 0
1
answerQuestion
I am having a tad of difficulty with a MUPad error which I do not really understand. In the trapezoidal integration portion, my purpose is to integrate f within the interval I and place the corresponding values in Approx. I should appreciate help.
% Simplistic analysis of the filling factor zeta=48.8; f_col=erfc(1.69/sqrt(2)*7); C=24.466*exp((-.114*6)+(.00132822*36)); Q_...
10 years ago | 0 answers | 0
0
answersQuestion
I am having a tad of difficulty with a MUPad error which I do not really understand. In the trapezoidal integration portion, my purpose is to integrate f within the interval I and place the corresponding values in Approx. I should appreciate help.
% Simplistic analysis of the filling factor zeta=48.8; f_col=erfc(1.69/sqrt(2)*7); C=24.466*exp((-.114*6)+(.00132822*36)...
10 years ago | 0 answers | 0
0
answersQuestion
Using e-mail with matlab
Hi, I would truly appreciate it if anyone may help me with this. I would like to know what, perhaps, is wrong with the colle...
11 years ago | 1 answer | 0