simp {StreamMetabolism}

Numeric Integration Using Simpson's method

Description

Numeric Integration using the Simpson Method

Usage

simp(y, a = NULL, b = NULL, x = NULL, n = 200)

Arguments

y

y values to integrate

x

x values to integrate over

a

NULL

b

NULL

n

number of divisions defaults to 200

Value

Numeric Value of the integration

Author(s)

Rolf Turner

Examples

# 4-x^2-y^2
fun <- function(x, y){
	a <- 4
	b <- x^2
	d <- y^2
	z <- a-b-d
	return(z)
	}
	
a <- fun(seq(-1000,1000,1), seq(-1000,1000,1))
simp(a, x=-1000:1000, n=1000)