# Numerically Solving Integrals

For basic multidimensional quadrature we can construct and solve a IntegralProblem:

using Integrals
f(x,p) = sum(sin.(x))
prob = IntegralProblem(f,ones(2),3ones(2))
sol = solve(prob,HCubatureJL(),reltol=1e-3,abstol=1e-3)

If we would like to parallelize the computation, we can use the batch interface to compute multiple points at once. For example, here we do allocation-free multithreading with Cubature.jl:

using Integrals, Cubature, Base.Threads
function f(dx,x,p)
sol = solve(prob,CubatureJLh(),reltol=1e-3,abstol=1e-3)
If we would like to compare the results against Cuba.jl's Cuhre method, then the change is a one-argument change:
using IntegralsCuba
sol = solve(prob,CubaCuhre(),reltol=1e-3,abstol=1e-3)