Let be the expresion(adsbygoogle = window.adsbygoogle || []).push({});

[x]=integer part of x =L**-1R(s) with:

R(s)=2/s**2-1/1-exp(-s) then let,s put x=f(t) so

[f(t)]=1/2Pi*iInt(c+i8,c-i8)R(s)exp(sf(t)) is that correct?...

then for the sum for t=1 to t=N we would have:

Sum(1,N)[f(t)]=1/2Pi*iInt(c+i8,c-i8)R(s)Sum(1,N)exp(sf(t)) where the sum is for t..

with that i have given an expresion to get the sums of the form

Sumn(1,N)[f(t)]

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# Cuyrious sum

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