Basic Examples 
(1)
 

Get the additional trees that are necessary for a fourth-order method, assuming that the quadrature conditions through order 4 and the row and column simplifying assumptions of order 1 hold:
In[33]:=
[◼]
ButcherTreeSimplify
[4,1,1]
Out[33]=
{{f.[f.f.[f.]]}}

Properties and Relations 
(1)
 
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