Mathematica - how to simplify an output formula

[Safinaz]

Mathematica -- how to simplify an output formula

Hi all,

Is there any more options to simplify an out put Mathematica formula. I used //Simplify but the expression still
complicated and //FullSimplify too slow and didn't work.

Bests,
Safinaz

 

[ChristinaJ]

Please provide your code.

 

[Safinaz]

Hi,
Here is that:1/s^2 266.428 GG^4 (-1. MSR^4 + s (1.69 - 1. t) -
1. (-1.69 + t) (-1.69 + t) +
MSR^2 (-3.38 + 2. t)) + (-8.5683 MSR^8 +
s^3 (3.62011 - 2.14208 t) +
MSR^6 (74.2122 + 8.5683 s + 24.6339 t) +
s^2 (-71.8863 - 5.43016 t - 5.89071 t^2) -
3.74863 (61.6102 - 3.38 t + t^2) (2.8561 - 3.38 t + t^2) -
7.49726 s (-1.69 + t) (26.5209 - 2.43421*10^-16 t + t^2) +
MSR^4 (-2.14208 s^2 + s (-66.0669 - 29.4535 t) -
27.3115 (0.639919 + t) (4.46322 + t)) +
MSR^2 (s^2 (7.24021 + 12.8525 t) +
14.9945 (-1.69 + t) (19.1767 + 4.34571 t + t^2) +
s (177.421 + 86.8826 t + 23.5628 t^2)))/((1.69 -
1. t)^2 (1.69 + 2. MSR^2 - 1. s -
1. t)^2 v45^4) + (GG^2 (-1383.72 + 71.6685 MSR^6 +
MSR^4 (-242.24 - 35.8343 s - 143.337 t) +
s^2 (-60.5599 - 35.8343 t) + 1637.54 t - 484.479 t^2 -
35.8343 s (-1.69 + t) (11.83 + t) +
MSR^2 (71.6685 (-1.69 + t) (11.83 + t) +
s (242.24 + 143.337 t))))/(s (1.69 - 1. t) (-1.69 -
2. MSR^2 + s + t) v45^2)

Where GG, v45, MSR,t , s are free varibles I 'd like to leave them as unknowns.

Safinaz