itp: The Interpolate, Truncate, Project (ITP) Root-Finding Algorithm
Implements the Interpolate, Truncate, Project (ITP) root-finding
algorithm developed by Oliveira and Takahashi (2021) <doi:10.1145/3423597>.
The user provides the function, from the real numbers to the real
numbers, and an interval with the property that the values of the function
at its endpoints have different signs. If the function is continuous over
this interval then the ITP method estimates the value at which the function
is equal to zero. If the function is discontinuous then a point of
discontinuity at which the function changes sign may be found. Tuning
parameters of the ITP algorithm can be set by the user. Default values are
set based on arguments in Oliveira and Takahashi (2021).
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