2
f := Df *f*p1 + Df *f *p4 + Df *Df*f*p2 + Df *f *p5 + (Df) *f *p3
t 3x 2x x x x 2x x
+ Df*f *p6 + f *p7
3x 5x
with symmetries
f := 0 sSYSTEM & SYMMETRY DO NOT SATISFY MINIMAL REQUIREMENTS!