I have a function like this: U = coth(s/100)/(s^3 + a*s + b) and i use ilaplce(U,s,t) to find invers laplace transform, but matlab can not give me the answer.
>> syms t x s
>> U = coth(s/100)/(s^3 + s^2 + 1);
>> u = ilaplace(U,s,t)
u =
ilaplace(coth(s/100)/(s^3 + s^2 + 1), s, t)
i try doing inverse of another function of coth(), but i receive the same result.
>> K = coth(s);
>> k = ilaplace(K,s,t)
k =
ilaplace(coth(s), s, t)
>>
i try to do it with maple, but there is still no answer:
> with(inttrans);
> invlaplace(coth(s), s, t);
invlaplace(coth(s), s, t)
So what should i do ? thanks for answer !
InverseLaplaceTransform[Coth[s/100]/(s^3 + s^2 + 1), s, t]in Mathematica 9 finds no solution as well. – horchler Jun 8 '13 at 15:09