Integration (AUC)

This software estimates the area under curve (AUC) of function f(x) by the trapezoidal rule

picture from wikipedia

Manual :

1- install R programming language

2- download the software

3- edit the integration_0-01.r file you will see this part at the begining of the file :

# is a comment

# Edit a and b

a <- 1

b <- 5

# Edit the accuracy n = number of trapezes

n <- 5000

my_function <-function(x) {

# edit your function here y=f(x)

y <- -3*x^2 + 2*x+5

return(y)

}

4- modify the values for a and b and n.

5- modify the line y <- -3*x^2 + 2*x+5 to match you equation

6- start R program.

7- load the equation software using the command <source("path to the programme file")>

for example : source("integration_0-01.r")

the program will calculate the AUC automatically :)