Help with Summation in Matlab
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Adrian Rodgers
il 14 Ago 2020
Commentato: Walter Roberson
il 14 Ago 2020
Hi guys i have the follwoing code that I am stuggling to get running.
Any help would be appreaciated?
% The Given Data
x_1=4; %Assign Initial Values of x
y_1=0; %Assign Initial Values of y
t_j =Data(:,1); %assign Values of t
V_xj= Data(:,2); %Assign Values of V_xj
V_yj= Data(:,3); %Assign Values of V_yj
k = (1:4);
syms(1j)
x_k= symsum(V_xj(t_j+1 - t_j)+x_1,1i,1,k-1); %Calculate values of x_k
y_k= symsum(V_yj(t_j+1 - t_j)+y_1,1i,1,k-1); %Calculate values of y_k
3 Commenti
Walter Roberson
il 14 Ago 2020
My guess is that
x_k = symsum(V_xj(t_j+1 - t_j)+x_1,1i,1,k-1)
is intended to represent
Risposta accettata
Walter Roberson
il 14 Ago 2020
My guess:
x_k = sum(diff(t_j(1:k)) .* V_xj(1:k-1) + x_1);
but the x_1 does not make sense to me in that location: why would you want to add it for each k value?
... When k = 1, is x_k intended to refer to the same place thing as x_1 ?
2 Commenti
Walter Roberson
il 14 Ago 2020
It would make more sense to me if you were adding instead of -- though in that case you would have to work iteratively.
It looks to me as if can be created from as
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