## ---- include = FALSE---------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

## ----setup--------------------------------------------------------------------
library(calculus)

## -----------------------------------------------------------------------------
hermite(order = 2)

## -----------------------------------------------------------------------------
hermite(order = 2, sigma = diag(2), var = c("x1", "x2"))

## -----------------------------------------------------------------------------
hermite(order = 2, sigma = diag(2), var = c("x1", "x2"), transform = c('x1+x2','x1-x2'))