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# Akhtar Jan

### UET Peshawar KP Pakistan

Last seen: 2 mois il y a Actif depuis 2021

PhD. Scholar in Mathematics

Programming Languages:
MATLAB

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Question

Some one check this code of solving ODEs . Is it correct or not?
n = 500; tmin = 0; tmax = 8; h = tmax/n; t = linspace(tmin, tmax, n) E = 1; x = zeros(1, n); x(1) = 8; y = zeros(1, n); ...

2 mois il y a | 1 réponse | 0

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where is the fault the code is not running as it has two delays with four variables?
function sol = exam4 options = ddeset('Events',@exam4e); sol = dde23(@exam4f,[1, 10],[5; 0.1; 1],[0, 40],options); xe = sol.x...

5 mois il y a | 1 réponse | 0

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How can I draw a bifurcation diagram for the given code?
clc close all k1 = 3; k_1 = 1; k2 = 2.5; k3 = 1; k_3 = 1; k4 = 2; k5 = 1; E1 = 1; E2 = 2; K1 = (k_1+k2)/k1; K2 = (k_...

5 mois il y a | 1 réponse | 0

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Question

How to plot the solution?
clc close all syms L e = exp(sym(1)); lags = 0; k1 = 3; k_1 = 1; k2 = 2.5; k3 = 1; k_3 = 1; k4 = 2; k5 = 1; E1 = 1; ...

6 mois il y a | 1 réponse | 0

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Question

where is the fault the code is not running?
clc close all lags = 0.6; k1 = 3; k_1 = 1; k2 = 2.5; k3 = 1; k_3 = 1; k4 = 2; k5 = 1; E1 = 1; E2 = 2; K1 = (k_1+k2)/...

6 mois il y a | 1 réponse | 0

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Question

How to find L from the given code?
clc close all lags = 0.6; k1 = 3; k_1 = 1; k2 = 2.5; k3 = 1; k_3 = 1; k4 = 2; k5 = 1; E1 = 1; ...

6 mois il y a | 2 réponses | 0

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Question

I want to draw a bifurcation diagram for system of four delay differential equations
clc lags = 0.6; sol = dde23(@ddex1de,lags,@ddex1hist,[0,8]); t = sol.x; y = sol.y; plot(t,y(1,:)); function dydt = ddex1de...

7 mois il y a | 1 réponse | 1

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Question

How can I run this code I don't know where is the fault?
clc close all clf k1 = 2; k_1 = 1; k2 = 1; k3 = 2; k_3 = 1; k4 = 1; St = 100; K1 = (k_1+k2)/(k1*St); K2 = (k_3+k4)/(k...

10 mois il y a | 1 réponse | 0

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Question

how can i run this code need help?
%its about Solving PDEs by Asymmetric MQ Collocation the above code is already given in the book which %i have %pasted below ...

11 mois il y a | 1 réponse | 0

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Question

I want to run this code?
shape = 2.5; N = 30; Np = N^2; [X,Y] = meshgrid(linespace(0,1,N),linespace(0,1,N)); x = reshape(X,N^2,1); y = reshape(Y,N^2...

11 mois il y a | 1 réponse | 0

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Question

How can I plot the the graph of Hill Equation for cooperativity Velocity vs. Substrate concentration in MATLAB
k1 = 3 k_1 = 1; k2 = 3; k3 = 0.6; k_3 = 1; k4 = 3; E0 = 2; K1 = (k_1+k2)/k1; K2 = (k_3+k4)/k3; (k2*K2+k4.*S(i))*E0.*S(i...

environ un an il y a | 1 réponse | 0

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Question

How can I add Direction arrows in this Phase Portrait I mean arrows in the Direction of velocity
clear clc clf close all k1 = 3; k_1 = 1; k2 = 3; k3 = 0.6; k_3 = 1; k4 = 3; f = @(t,a) [k_1*a(2)-k1*a(1)-k3*a(1)*a(...

environ un an il y a | 1 réponse | 0

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How can I plot the graph of three non-linear coupled ODE's vs. time in xy-plane in MATLAB. I want to use x-axis for time while y axis for x(1),x(2),x(3) thanks
My ODE's are: k_1*x(2)-k1*x(1)-k3*x(1)*x(2)+k_3*x(3); k1*x(1)-(k_1+k2)*x(2)-k3*x(1)*x(2)+(k4+k_3)*x(3); k3*x(1)*x(2)-(k4+k_3)...

environ un an il y a | 1 réponse | 0

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How can i draw the phase portrait in my code for 3 non-linear coupled ODEs in 3D plane
function SC1C2 clear clc clf close all %==== parameters ===== k1 = 1.5; k_1 = 0.5; k2 = 1; k3 = 2; k_3 = 1; k4 =...

environ un an il y a | 1 réponse | 1

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