Current version of ArtSGraph does not have a function to perform indefinite integration (i.e. finding of function’s antiderivative).
However ArtSGraph has a function for approximate calculation of Definite Integral of a function of one variable. ArtSGraph uses Simpson’s method, which proves to be very accurate in many cases.
To calculate definite integral, use function
I(F,x,a,b)
where
F stands for integrand,
x is the variable of integration,
a and b specify lower and upper limits of integration respectively.
Example
I(sin(x),x,0,pi) ; Result: 2
By default ArtSGraph uses Simpson method with 100 steps. You can specify number of steps explicitly using 5th argument, i.e.
I(F,x,a,b,n)
where n specifies number of steps. Compare
f=x^3
I(f,x,0,1,4)
I(f,x,0,1,10)
I(f,x,0,1,100)
I(f,x,0,1,1000)