How can I change the format of the answer?

I got the output of the inverse laplace like below.

How can I change this into the equation with the calculated values?

dphi_t =
 
(18231298392664843931137914740085*symsum(exp(t*root(s3^4 + (7222590806255583*s3^2)/1180591620717411303424 + 2261458668024229/309485009821345068724781056, s3, k))/(524288*(2361183241434822606848*root(s3^4 + (7222590806255583*s3^2)/1180591620717411303424 + 2261458668024229/309485009821345068724781056, s3, k)^3 + 7222590806255583*root(s3^4 + (7222590806255583*s3^2)/1180591620717411303424 + 2261458668024229/309485009821345068724781056, s3, k))), k, 1, 4))/288230376151711744 + 38685626227668131840*symsum((exp(root(s3^4 + (7222590806255583*s3^2)/1180591620717411303424 + 2261458668024229/309485009821345068724781056, s3, k)*t)*root(s3^4 + (7222590806255583*s3^2)/1180591620717411303424 + 2261458668024229/309485009821345068724781056, s3, k))/(524288*(2361183241434822606848*root(s3^4 + (7222590806255583*s3^2)/1180591620717411303424 + 2261458668024229/309485009821345068724781056, s3, k)^2 + 7222590806255583)), k, 1, 4)

Answer 1

[Star Strider]

I am not certain what you want.

Try the vpa funciton:

dphi = vpa(dphi, 5)

producing:

dphi =
(1.25e-7*s^2 + 2.0438e-13)/(s^4 + 6.1178e-6*s^2 + 7.3072e-12)

also:

ltx = latex(dphi)

produces:

or with a bit of editing:

[Postit123]

Thank you! This is exactly what I want :)

[Star Strider]

As always, my pleasure!