Problem in summation with floor function

I would like to compute the summation involving ''floor function'' as the limit of the sum. Below I have the code. But when I run that some error is apparing which is beyond my understanding. Please somebody help me to solve that issue.

" Error using symengine

Nonnegative integer or a symbol expected.

Error in sym/symsum (line 70)

rSym = mupadmex('symobj::map',fsym.s,'symobj::symsum',x.s,a.s,b.s);

Error in floorfu (line 43)

s23p=symsum(symsum(ss3p.*s2p,l,0,m),k,0,n);"

clc;
syms  theta k l p q

W=1.0;
g=0.0001;
lm=0.1;

assume(k>=0);
assume(l>=0);
assume(p>=0);
assume(q>=0);

n=6;
m=6;

t1=floor((k+1)./2);  %%%%%%%%%%%%% Floor fun
t2=floor(l./2);      

theta=pi./3;

om=sqrt(((W).^2)-(4.*(g.^2)));

mu=sqrt((W+om)./(2.*om));

nu=((W-om)./(2.*g)).*mu;

eta=(((lm)./((2.*g)+W)).*(1+((W-om)./(2.*g)))).*mu;

tau= mu + nu.*cos(2.*theta);

d=k+l-2.*p-2.*q-2;

ag= eta.*cos(theta)./(sqrt(mu.*tau));


s1p=(mu./tau).*((-1).^m).*((1i)^(m+n)).*(2.*eta.*(mu-nu)./(sqrt(2.*mu.*nu))).^(m+n);

s2p=(((nu./2.*eta).*sqrt(mu.*tau)./(mu-nu)).^(k+l)).*factorial(k).*factorial(l).*nchoosek(n,k).*nchoosek(m,l).*exp(1i.*theta.*(k-l));

s3p= ((2./nu.*tau).^(p+q)).*factorial(2.*p + 2.*q +1 -k -l)./(factorial(p).*factorial(q)).*nchoosek(p,k-p).*nchoosek(q,l-q).*exp(-2.*1i.*theta.*(p-q)).*hermiteH(d,ag);

ss3p=symsum(symsum(s3p,q,t2,m),p,t1,n); %%%%%%%%% Actually in this line that error is coming

s23p=symsum(symsum(ss3p.*s2p,l,0,m),k,0,n);

sumout=s1p.*s23p

[Ameer Hamza]

Can you show your equations in mathematical form?

[AVM]

Thanks for your reply. Here the math. Equation in written form as an attachment.

[AVM]

@Ameer: Is there any way to solve that error? Please let me know.

[Ameer Hamza]

The equations are quite complex, to it is difficult to see where the error is happening. However, I suggest you use floating-point math in this case instead of symbolic equations. Try creating a vector with all the terms and then use sum() function.

[AVM]

Thanks for your information. But how to use floating-point math ? Pl show me the corresponding command for that with an example.

[AVM]

So,in this case shall I have to convert the entire equation in ''matlabFunction''?

[Ameer Hamza]

For example, if you have a summation like this

following shows how to use symbolic toolbox or the sum() function using floating-point numbers

syms k
n = 10;

y = k^2*sin(k);
y1 = double(symsum(y, k, 1, n));

kv = 1:n;
y2 = sum(kv.^2.*sin(kv));

[AVM]

Thanks for your reply. Okay, with this I must try.