sum of products to a series and a function

2015 2 1
2 个回答
更新时间：2015 2 4
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0 个投票

Hello,
I wanted to find a series of 'h' starting from 1 to "p" for the expression:
where H(m) is a known series of p values; erfc is complementary error function, u is a known parameter. I have written the expression in Mupad successfully and could evaluate the series in Matlab by copying the expression from Mupad to matlab command window since H(m)is located in Matlab worksplace. This is tedious when the series gets longer and needs to change the value of "u".
I appreciate your help. Thank you. maharjan

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回答（2 个）

Maharjan
Maharjan 2015-2-4

0 个投票

syms m p
k=u/sqrt(p-m+1);
q= erfc(k);
h=symsum(q,m,1,p);
f=symfun(h,p);
for i=(1:1:20)
a(i)=f(i);
b(i)=eval(a(i));
end
I got up to the above limit but still could not figure out how to multiply by "m"th term of H. I am getting sym/subsindex error. Bear in mind that as size of "p" changes numbers of "m" changes. Any help is appreciated.

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提问:

Maharjan
Maharjan
2015-2-1

回答：

Maharjan
Maharjan
2015-2-4

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