Trapezoidal integration in 1 or 2 dimensions
Arguments
- h
A length d numeric vector of grid widths.
- fx
A d-dimensional array (or a vector, if d=1).
Value
The trapezoidal approximation of the integral.
Examples
# 1D example
trapz(h = 1, fx = 1:10)
#> [1] 49.5
# 2D example
trapz(h = c(1,1), fx = matrix(1:10, nrow = 2))
#> [1] 22