what is the meaning of? K*(i-1):end

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loredana
loredana 2014-12-30
编辑： Matt J 2014-12-30
i have a function: c_t(i,1+K*(i-1):end)=..... i don't undestrand the meaning of K*(i-1):end

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回答（2 个）

Youssef Khmou
Youssef Khmou 2014-12-30
c_t(i,1+K*(i-1):end) means selecting elements identified by 1+K(i-1) to end from matrix c_t in the row i, generally X(a:b) picks elements of positions a,a+1,a+2,...b.
Matt J
Matt J 2014-12-30
编辑：Matt J 2014-12-30
If what's confusing is the use of END, then here, it is the same as
L=size(c,2);
c_t(i,1+K*(i-1):L)=....
More info at http://www.mathworks.com/help/matlab/ref/end.html

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