Docs for Boundary value problems: GeneralMIRK4 not defined

[hurak]

The basic example of defining and solving a BVP on https://docs.sciml.ai/DiffEqDocs/stable/tutorials/bvp_example/#Example-1:-Simple-Pendulum, which I copy&paste here

using BoundaryValueDiffEq
using Plots
const g = 9.81
L = 1.0
tspan = (0.0, pi / 2)
function simplependulum!(du, u, p, t)
    θ = u[1]
    dθ = u[2]
    du[1] = dθ
    du[2] = -(g / L) * sin(θ)
end


function bc1!(residual, u, p, t)
    residual[1] = u[end ÷ 2][1] + pi / 2 # the solution at the middle of the time span should be -pi/2
    residual[2] = u[end][1] - pi / 2 # the solution at the end of the time span should be pi/2
end
bvp1 = BVProblem(simplependulum!, bc1!, [pi / 2, pi / 2], tspan)
sol1 = solve(bvp1, GeneralMIRK4(), dt = 0.05)
plot(sol1)

gives this ERROR: UndefVarError: GeneralMIRK4 not defined.

The latest stable version of BoundaryValueDiffEq is used, that is, v4.0.1.

Replacing GeneralMIRK4 with just MIRK4 helps. This is also the option used in the example in README on https://github.com/SciML/BoundaryValueDiffEq.jl. But the above linked tutorial page still uses GeneralMIRK, and not only in the code but also in the text.

[ChrisRackauckas]

Yes it should just be MIRK4 now. @ErikQQY or @avik-pal can you look into this?

[ErikQQY]

Sure, I will update the whole BVP tutorials with the recent development on BoundaryVauleDiffEq.jl

[avik-pal]

This is fixed now in the stable docs