error Conversion to double from function_handle is not possible.

t = 0:0.01:10;
nt = length(t);
% Inicialización de u y u'
u = zeros(size(t));
p = zeros(1,nt);
for i = 1:nt
p(i) = @(t) (10./(t(i)+1));
u(i) = integral(@(tau) p(t(i)-tau)*h(tau),0,t(i));
end
me aparece el error Conversion to double from function_handle is not possible.
p(i) = @(t) (10./(t(i)+1));
como solucionarlo?

 采纳的回答

The ‘p’ function was incorrect, and the ‘h’ funciton is completely missing (so I created it).
Try this (with the correct ‘h’ function) —
t = 0:0.01:10;
nt = length(t);
% Inicialización de u y u'
u = zeros(size(t));
p = zeros(1,nt);
p = @(t) (10./(t+1));
h = @(x) x; % Create Function
for i = 1:nt
u(i) = integral(@(tau) p(t(i)-tau).*h(tau),0,t(i));
end
u
u = 1×1001
0 0.0005 0.0020 0.0045 0.0079 0.0123 0.0177 0.0239 0.0312 0.0393 0.0484 0.0584 0.0693 0.0811 0.0937 0.1073 0.1217 0.1369 0.1531 0.1700 0.1879 0.2065 0.2260 0.2463 0.2674 0.2893 0.3120 0.3355 0.3598 0.3849
.

2 个评论

p = zeros(1,nt);
p = @(t) (10./(t+1));
Why bother to initialize p with zeros there?
It was initially written as:
p(i) = @(t) (10./(t(i)+1));
and I didn’t catch the preallocation when I corrected the ‘p’ function. (I was concentrating on it and the absent ‘h’ function.)

请先登录,再进行评论。

更多回答(1 个)

Here is the corrected solution:
t = 0:0.01:10;
nt = length(t);
% Inicialización de u y u'
u = zeros(size(t));
p = zeros(1,nt);
p = @(t) (10./(t+1));
Pval=p(t);
% Note that your include h() is unknown. Thus it is removed from the
% formulation. Predefine it if it is to be included.
for i = 1:nt
u(i) = integral(@(tau) Pval(i)*(t(i)-tau).*(tau),0,t(i));
end

类别

帮助中心File Exchange 中查找有关 Programming 的更多信息

产品

版本

R2023a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by