Overview of the itp package
Supplying to itp an R function | Well-behaved functions | Lambert: $f(x) = x e^x - 1$ | Trigonometric 1: $f(x) = \tan(x - 1 / 10)$ | Ill-behaved functions | Polynomial 3 (non-simple root): $f(x) = (10^6 x - 1) ^ 3$ | Staircase (discontinuous): $f(x) = \lceil 10 x - 1 \rceil + 1/2$ | Warsaw (multiple roots): $f(x) = I(x > -1)\left(1 + \sin\left(\frac{1}{1+x}\right)\right)-1$ | Supplying to itp an external pointer to a C++ function | C++ function itp_c | Plot method | References