Element-By-Element Operations using Matlab
4 次查看(过去 30 天)
显示 更早的评论
I wonder how to calculate the following sum using Element-By-Element Operations Matlab:
∑_(i=1)^4(u_i.[min(0,A_i.x-b_i )]^2)
i=1:4
u_i is a scalar
A_i is a (1,4) vector
b_i is a scalar
and
x is a (4,1) vector
0 个评论
采纳的回答
更多回答(1 个)
Biswajit M
2013-11-25
hope this helps:
u(1)*(min(0,min(A(1,:)))*x-b(1)) .^2+u(2)*(min(0,min(A(2,:)))*x-b(2)) .^2+u(3)*(min(0,min(A(3,:)))*x-b(3)) .^2+u(4)*(min(0,min(A(4,:)))*x-b(4)) .^2
I tried it this way :
clear all; clc
u=[1,2,3,4]; A=[1,2,3,4;5,6,7,8;1,2,3,4;5,6,7,8]; x=[5;6;7;8]; b=[4;5;6;7]; min(0,min(A(1,:)))
u(1)*(min(0,min(A(1,:)))*x-b(1)) .^2+u(2)*(min(0,min(A(2,:)))*x-b(2)) .^2+u(3)*(min(0,min(A(3,:)))*x-b(3)) .^2+u(4)*(min(0,min(A(4,:)))*x-b(4)) .^2
The output comes like:
ans =
370
370
370
370
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!