how to write this summation in matlab form ∑_(u=1)^(su-2)?

in this summation..the lower limit is u=1 and the upper limit is su-2. how can i write this summation limits in matlab form?

[Greg Heath]

Please write the complete mathematical command that is to be translated to MATLAB code

Answer 1

[Walter Roberson]

If you have the symbolic toolbox, use symsum()

syms u
symsum(YourExpression, u, 1, su-2)

If you do not have the symbolic toolbox, then either use a for loop that accumulates the results, or else use an expression that calculates each term independently and then sum() them together. You could also consider using arrayfun()

arrayfun(@(u) YourExpression, 1:su-2)

[Dhines]

i'm using MATLAB R2009b. in this symbolic toolbox is present r not?

[Walter Roberson]

The Symbolic Toolbox is an optional extra-cost add-in for all MATLAB licenses, with the exception that the Student Version includes the license for the Symbolic Toolbox (which is not necessarily installed by default.)

[Dhines]

thanks

[Rajnish kumar]

But symsum shows error if we have summation of h(k)x(n-k) for k=1 to L; let L=10; Undefined function 'symsum' for input arguments of type 'double'.

Error: y(n)=symsum(h(r).*x(n-r),r,1,L);

[SARSKOLIN FOSSO]

yes i had this error.....it is because symsum became the function

Answer 2

[Sudhanshu Gaurav]

min K k=1 n +1 i=0 n +1 j=0 cijxijk

[Walter Roberson]

I am not sure why your post did not show up; I will ask staff.

You posted

min K k=1 n +1 i=0 n +1 j=0 cijxijk