# MATLAB: How to get symbolic subexpressions

expressionsubexpressionsymbolic

Hi
How to get individual subexpressions from symbolic expression if expression is in form of collect output. For example i got following expression from collect():
u1*(2.794181081*u2^2 – 2.3381963*u2^4 + 0.46413*u2 – 0.5202912702) – 2.636996736*u2 + 0.3739*u1^4
The expression contains three terms. I would like to obtain each term individualy. Is there any built in function for such operation?
My only idea is to transform it to char and make syntax analysis.

• syms u1 u2z = vpa(u1*(2.794181081*u2^2 - 2.3381963*u2^4 + 0.46413*u2 - 0.5202912702) - 2.636996736*u2 + 0.3739*u1^4,10);[t k]=coeffs(z,u1)out = t.*k