[Scilab-users] How do I write a summation notation in scilab?

[CRETE Denis]

You probably also to look at "fft", which will be faster.
Denis

-----Message d'origine-----
De : users-bounces at lists.scilab.org [mailto:users-bounces at lists.scilab.org] De la part de CRETE Denis
Envoyé : vendredi 21 septembre 2012 08:06
À : International users mailing list for Scilab.
Objet : Re: [Scilab-users] How do I write a summation notation in scilab?

Hello,
n=-10:10; // n is a row vector
sum(cos(x+0.09*n*x)) // if x is a scalar;
sum(cos(ones(n')*x+0.09*n'*x),'r') // x is a row vector (or scalar) sum(cos(ones(n')*x'+0.09*n'*x'),'r')' // or equivalently
sum(cos(x*ones(n)+0.09*x*n),'c') // if x is a column vector (or scalar) s=[]; for n=-10:10, s=s+cos(x+0.09*n*x); end; // in all cases including hypermatrices HTH Denis -----Message d'origine----- De : users-bounces at lists.scilab.org [mailto:users-bounces at lists.scilab.org] De la part de bkpsusmitaa Envoyé : vendredi 21 septembre 2012 06:21 À : users at lists.scilab.org Objet : [Scilab-users] How do I write a summation notation in scilab?

Dear friends,
How do I write the following function in scilab:
<http://mailinglists.scilab.org/file/n4024860/summation.jpeg>
I searched the help files in scilab but did not come across such equations or functions inolving sigma.
Regards.



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