{(v=root_of(v_**6 + v_ + 1,v_,tag_1),v=1)}
{{x= - y,y=(1+f(x, g(h(i,j))))/(1 - f(x, g(h(i,j))))},
{x= - y,y=(1+f(x, g(h(i,j))))**2/(1 - f(x, g(h(i,j))))**2}}
{{q=myfun1(p^2+1,exp(r)), p=cos(r), r=m_y2f(p,r,s)},{
q=m(p^2+1,exp(r)), p=cos(-r), r=m_y2f(d+e)}}
