How to take an integral symbolically and then convert it to type double?
1 次查看(过去 30 天)
显示 更早的评论
How do I take the following integral symbolically? And convert it to double? I have a 1000 x 1 numeric vector of type double for A(t).
The following takes a minute or two to run and I'm not sure how to plot it to check.
syms t omega real
int(A*sin(omega*t),0,2*pi/omega)
6 个评论
Walter Roberson
2023-5-16
format long g
syms t omega real
A = rand(5,1)
Asym = sym(A);
symbolic_result = int(Asym*sin(omega*t),0,2*pi/omega)
omega = abs(randn())
numeric_result = integral(@(t) A .* sin(omega.*t), 0, 2*pi./omega, 'Arrayvalued', true)
Zero to within round-off error.
采纳的回答
VBBV
2023-5-16
编辑:VBBV
2023-5-16
syms t omega real
A = rand(1000,1);
% specify the integration variable t as the argument
I = double(vpa(int(A.*sin(omega*t),t,0,2*pi/omega),2))
1 个评论
VBBV
2023-5-16
Assuming some random data, you can specify the integration variable t as the argument and do symbolic integration
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Assumptions 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!