|  | name | - identifier for method | 
|  | order | - approximation order of method | 
|  | s | - number of stages, this is the dimension of the matrices below | 
|  | At | - Butcher table of stage coefficients for stiff part (dimension s*s, row-major) | 
|  | bt | - Butcher table for completing the stiff part of the step (dimension s; NULL to use the last row of At) | 
|  | ct | - Abscissa of each stiff stage (dimension s, NULL to use row sums of At) | 
|  | A | - Non-stiff stage coefficients (dimension s*s, row-major) | 
|  | b | - Non-stiff step completion table (dimension s; NULL to use last row of At) | 
|  | c | - Non-stiff abscissa (dimension s; NULL to use row sums of A) | 
|  | bembedt | - Stiff part of completion table for embedded method (dimension s; NULL if not available) | 
|  | bembed | - Non-stiff part of completion table for embedded method (dimension s; NULL to use bembedt if provided) | 
|  | pinterp | - Order of the interpolation scheme, equal to the number of columns of binterpt and binterp | 
|  | binterpt | - Coefficients of the interpolation formula for the stiff part (dimension s*pinterp) | 
|  | binterp | - Coefficients of the interpolation formula for the non-stiff part (dimension s*pinterp; NULL to reuse binterpt) |