Please find the mistake in this code.
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
AVINASH SAHU
am 8 Jul. 2022
Bearbeitet: Torsten
am 8 Jul. 2022
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1059170/image.png)
syms x lambda
warning off
alpha = -0.1;
sigma = 0.1;
eps = -0.1;
e = 0.2;
M = 10;
a = 2;
figure
psi_list = [10, 20, 30, 40. 50];
for i = 1:numel(psi_list)
psi = psi_list(i);
hbar = @(x) a - a.*x + x;
A1 = eps + alpha^3 + (3 * sigma^2 * alpha);
B1 =@(x,lambda) (-3 * lambda * M) * ((hbar(x).^2) + (2 .* hbar(x) .* alpha) + (sigma^2) + (alpha^2));
a1 =@(x) tanh(M .* hbar(x));
b1 =@(x) 1 - ((tanh(M .* hbar(x))).^2);
c1 = (M * alpha) - ((M^3 * A1)/3);
d1 = @(lambda) 2 * (M^2) * (1 + lambda);
C1=@(x) a1(x) + (b1(x) .* c1);
D1 =@(x,lambda) d1(lambda) .* ((hbar(x).^3) + (3 .* (hbar(x).^2) .* alpha) + (3 .* hbar(x) .* (alpha)^2) + (3 .* hbar(x) .* (sigma)^2) + eps + (3 * alpha * (sigma^2)) + (alpha^3));
f1 =@(x,lambda) B1(x,lambda) + (3 * lambda .* C1(x) .* hbar(x)) + (3 * lambda .* C1(x) .* alpha) + (D1(x,lambda) .* C1(x));
f2 =@(x,lambda) 12 * (M^2) * (1 + lambda) .* C1(x);
f3 = psi * (e^3);
f4 = @(lambda) (1 + lambda) *180 * ((1 - e)^2);
f5 =@(lambda) 1/(2 + lambda);
F = @(x,lambda) ((f5(lambda) .* f1(x,lambda))./f2(x,lambda)) + (f3/f4(lambda));
q1 =@(x,lambda) hbar(x) ./ (2 .* F(x,lambda));
Q1 = int(q1,x,0,1); % integration with respect to "x" limit 0 to 1
q2 = @(x,lambda) 1./(F(x,lambda));
Q2 = int(q2,x,0,1); % integration with respect to "x" limit 0 to 1
Q = @(lambda) Q1(lambda)/Q2(lambda); % Q is a function of "lambda"
p1 = @(x,lambda) (1./F(x,lambda)) .* ((0.5 .* hbar(x)) - Q(lambda));
P = @(x,lambda) int(p1,x); % integration with respect to "x" limit 0 to x
% W is obtained by integrating "P" with respect to x limit to x is 0 to
% 1
W =@(lambda) int(P,x,0,1);
fplot(@(lambda) W(lambda))
end
legend(num2str(psi_list'))
ylim([0 1])
xlim([0 4])
set(gca, 'ytick', 0:0.1:1);
set(gca, 'xtick', 0:0.2:4);
xlabel('lambda')
ylabel('W(lambda)')
6 Kommentare
Sam Chak
am 8 Jul. 2022
Can you plot the lines manually one by one? You'll definitely find out what went wrong then.
Akzeptierte Antwort
Torsten
am 8 Jul. 2022
Bearbeitet: Torsten
am 8 Jul. 2022
alpha = -0.1;
sigma = 0.1;
eps = -0.1;
e = 0.2;
M = 10;
a = 2;
%figure
psi_list = [10, 20, 30, 40, 50];
lambda = 0:0.2:4;
for i = 1:numel(psi_list)
psi = psi_list(i);
hbar = @(x) a - a.*x + x;
A1 = eps + alpha^3 + (3 * sigma^2 * alpha);
B1 =@(x,lambda) (-3 * lambda * M) * ((hbar(x).^2) + (2 .* hbar(x) .* alpha) + (sigma^2) + (alpha^2));
a1 =@(x) tanh(M .* hbar(x));
b1 =@(x) 1 - ((tanh(M .* hbar(x))).^2);
c1 = (M * alpha) - ((M^3 * A1)/3);
d1 = @(lambda) 2 * (M^2) * (1 + lambda);
C1=@(x) a1(x) + (b1(x) .* c1);
D1 =@(x,lambda) d1(lambda) .* ((hbar(x).^3) + (3 .* (hbar(x).^2) .* alpha) + (3 .* hbar(x) .* (alpha)^2) + (3 .* hbar(x) .* (sigma)^2) + eps + (3 * alpha * (sigma^2)) + (alpha^3));
f1 =@(x,lambda) B1(x,lambda) + (3 * lambda .* C1(x) .* hbar(x)) + (3 * lambda .* C1(x) .* alpha) + (D1(x,lambda) .* C1(x));
f2 =@(x,lambda) 12 * (M^2) * (1 + lambda) .* C1(x);
f3 = psi * (e^3);
f4 = @(lambda) (1 + lambda) *180 * ((1 - e)^2);
f5 =@(lambda) 1./(2 + lambda);
F = @(x,lambda) ((f5(lambda) .* f1(x,lambda))./f2(x,lambda)) + (f3./f4(lambda));
q1 =@(x,lambda) hbar(x) ./ (2 .* F(x,lambda));
Q1 = @(lambda)integral(@(x)q1(x,lambda),0,1,'ArrayValued',true); % integration with respect to "x" limit 0 to 1
q2 = @(x,lambda) 1./(F(x,lambda));
Q2 = @(lambda)integral(@(x)q2(x,lambda),0,1,'ArrayValued',true); % integration with respect to "x" limit 0 to 1
Q = @(lambda) Q1(lambda)./Q2(lambda); % Q is a function of "lambda"
p1 = @(x,lambda) (1./F(x,lambda)) .* ((0.5 .* hbar(x)) - Q(lambda));
P = @(x,lambda) integral(@(y)p1(y,lambda),0,x,'ArrayValued',true); % integration with respect to "x" limit 0 to x
% W is obtained by integrating "P" with respect to x limit to x is 0 to
% 1
W =@(lambda) integral(@(x)P(x,lambda),0,1,'ArrayValued',true);
%fplot(@(lambda) W(lambda))
plot(lambda,W(lambda))
hold on
end
legend(num2str(psi_list'))
ylim([0 1])
xlim([0 4])
set(gca, 'ytick', 0:0.1:1);
set(gca, 'xtick', 0:0.2:4);
xlabel('lambda')
ylabel('W(lambda)')
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!