Esraa Abdelkhaleq
Biophysics Department_ Faculty of Science_ Cairo University
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Awarded to Esraa Abdelkhaleq on 20 Jul 2017
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Question
Why obtaining an error while displaying Runge kutta code
Hello, While I run out the code for Runge_Kutta, an error appears as "not enough input arguments" in line 2. 1 function...
environ 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Why curves don't appear in the numerical solution?
I want to solve an ODE system numerically. The numerical solution for the model equations should give two curves and four hlines...
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
Restoring the previous setting
Hello all, When I was using Matlab, there was one window for several tabs that display the code, but something has happened a...
plus de 7 ans il y a | 1 réponse | 0
0
réponseQuestion
The value of the crossing point between two curves?
How can I determine the exact value for the crossing point between two curves? Please see the attached figure. <</matlabcentr...
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
I want to know another line colors
I know these line colors: 'r', 'b' and 'm' Are there another line colors?
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How to plot the log scale?
If I have the following code: syms t x ai di Kgr dc fc Rc fi_Ri Kei Kec fch_Rch_Nh0 fih_Rih_Nh0 g = @(t,x,ai,di,Kgr,dc,f...
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
Solving a system of ODE
Hello, How can I solve a system of two ODE's as follows, dNcdt= Nc(t)*Kgr- dc*Nc(t)*Ni(t) dNidt= ai*Nc(t) - di*Ni(t) ...
presque 8 ans il y a | 1 réponse | 0
1
réponseQuestion
How to divide the parameters' ranges into subintervals?
If I have amodel equation: dqpldt=fc*Rc*Nc0*exp(Kgr*t)+(fi_Ri*(exp(-di*t)*(Ni0*di-Nc0*ai+Kgr*Ni0))/(Kgr+di))+(Nc0*ai*exp(K...
presque 8 ans il y a | 1 réponse | 0
1
réponseQuestion
A code for performing local sensitivity analysis.
Hello, If I have a model equation containing some parameters, and I want to change the values of each parameter by 10% of the...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
I want to do a parameter sensitivity analysis to my model
Hello, I have a model equation contains some parameters, I want to do a parameter sensitivity analysis to some parameters to ...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Plotting a relation between parameters and time.
If I have a model equation, dqidt=(fi_Ri*Nc0*ai\(Kgr+di))*(exp(Kgr*t)-exp(-di*t))+(fi_Ri*Ni0*exp(-di*t))+fih_Rih_Nih-Kei*qi ...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
how to plot a figure containing multiple curves for the same parameter with different values?
If I have a model equation containing ,for example, 4 parameters and I want to plot 4 figures each one for each parameter with t...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Undefined function when trying to open sensitivity analysis tool
When I try to open the sensitivity analysis tool by typing: ssatool('modelname') as it is mentioned in the documents for t...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Plotting multiple curves for the same parameter on the same graph.
Hello, Unfortunately, I have asked a question about parameters sensitivity analysis, but I did not receive any answer. No...
presque 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Solving an ODE numerically .. What is the problem in my code?
Hello, I want to solve this ODE numerically.. dq_pl/dt=f_plc*R_c*N_c0*exp(K_gr*t)+f_plh*R_h*N_h0-K_el*q_pl(t). Where th...
plus de 8 ans il y a | 1 réponse | 0
1
réponseQuestion
Why 'solve' function does not work with me
I want to solve this Eqn for qpl(s): L(s) = qpl(0) - Kel*qpl(s) - s*qpl(s) + (Nh0*Rh*fplh)/s - (Nc0*Rc*fplc)/(Kgr - s) ...
plus de 8 ans il y a | 1 réponse | 0
1
réponseQuestion
How can I write more than one subscript!
I want to know how can I write the subscripts in the following form: f_(T,0) where T (Capital),0 are subscripts. Thank...
plus de 8 ans il y a | 3 réponses | 0
3
réponsesQuestion
I want to know what does it mean by the term including "laplace" word in Laplace Transform
When I tried to solve an eqn analytically using Laplace Transform, the soln included the term laplace(qpl(t), t, s). I do not...
plus de 8 ans il y a | 2 réponses | 0
2
réponsesQuestion
How can I solve an ODE in Matlab (2008a)
I have an old version of Matlab (2008), when I try to create an ODE function and solve it, it does not work and errors appear as...
plus de 8 ans il y a | 1 réponse | 0
0
réponseQuestion
Solving ODE analytically using Laplace Transform
I want to solve the equation (dq_Pl (t))/dt = f_(Pl,T) R_T (kN_(T,o))/(N_(T,o)+(k-N_(T,o) ) e^(-k_GR t) ) + f_(Pl,H) R_H...
plus de 8 ans il y a | 1 réponse | 0
0
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