# How to install OrdinaryDiffEq?
**URL:** https://discourse.julialang.org/t/how-to-install-ordinarydiffeq/118572
**Category:** General Usage
**Tags:** question, package, ordinarydiffeq
**Created:** [August 24, 2024, 5:47pm UTC](https://discourse.julialang.org/t/how-to-install-ordinarydiffeq/118572 "2024-08-24T17:47:57Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [August 24, 2024, 5:47pm UTC](https://discourse.julialang.org/t/how-to-install-ordinarydiffeq/118572/1 "2024-08-24T17:47:57Z")
I heard that this package was split into many smaller packages.
How can I install less solvers? I only need:
- DFBDF
- DImplicitEuler
- KenCarp4
Any idea?
---
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [August 24, 2024, 6:35pm UTC](https://discourse.julialang.org/t/how-to-install-ordinarydiffeq/118572/2 "2024-08-24T18:35:06Z")
`using OrdinaryDiffEqBDF, OrdinaryDiffEqSDIRK` is all you need.
We’re releasing a new set of docs rather soon which will cover the split.
---
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [August 24, 2024, 6:55pm UTC](https://discourse.julialang.org/t/how-to-install-ordinarydiffeq/118572/3 "2024-08-24T18:55:42Z")
And how can I then replace these lines:
```julia
import OrdinaryDiffEq.init
import OrdinaryDiffEq.step!
```
---
### Author:  [@Oscar\_Smith](https://discourse.julialang.org/u/Oscar_Smith)
#### Post date: [August 24, 2024, 8:33pm UTC](https://discourse.julialang.org/t/how-to-install-ordinarydiffeq/118572/4 "2024-08-24T20:33:46Z")
Those will be `OrdinaryDiffEqCore.init!` etc.