MATLAB: How to write this summation in matlab form ∑_(u=1)^(su-2)

equationMATLAB

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?

Best Answer

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)

Related Solutions

MATLAB: How to represent the mathematical parameter in matlab

Is this a question about a symbolic computation, or a numerical one?

   x = randn(100,1);
   % sum of x for elements 10 to 30
   sum(x(20:30))

Symbolic

syms k
% sum of k from k =1 to k= 10
symsum(k,1,10)

MATLAB: How to write exponential integral in equation

You can use expint() function

N = 1;
U = 2;
r = log2(exp(1))*exp(N/U)*expint(N/U)

Result

>> r
r =
    1.3315

If you have symbolic toolbox, you can write the symbolic expression

syms U N
r = log2(exp(sym(1)))*exp(N/U)*expint(N/U)

Result from the live script

Best Answer

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