pwlapprox2d approximates continuous univariate functions
using adaptive piecewise linear regression. It produces a piecewise
linear approximation of a function over a specified domain until the
desired accuracy is reached.
You can install the package from your local folder during development using:
```r install.packages(“devtools”) devtools::install(“C:/Users/alasd/OneDrive/Documents/R/Packages/pwlapprox2d”)