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Gloust


Active since 2012

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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

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Solving for a function
I am trying to solve for n_{H0} in the following physical equation:

9 years ago | 0 answers | 0

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Question


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

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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

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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

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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

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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

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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

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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

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