-trbdfErrorMethod method

specifies the which approach is used to estimate the local truncation error and which norm is used. The available methods are dd/pointwise (divided differences for LTE estimate with a pointwise norm to measure the error), dd/global (divided differences for the LTE estimate with a global norm to measure the error), and milne, which uses a Milne's device to estimate the LTE and a pointwise norm to measure the error. The Milne approach uses a second TR step over the second half of the interval (and, hence an expensive third nonlinear solve). The default is dd/pointwise.