# Matrix multiplication
**URL:** https://openfhe.discourse.group/t/matrix-multiplication/180
**Category:** Show & Tell
**Created:** [October 26, 2022, 4:02pm UTC](https://openfhe.discourse.group/t/matrix-multiplication/180 "2022-10-26T16:02:54Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@FMazzone](https://openfhe.discourse.group/u/FMazzone)
#### Post date: [October 26, 2022, 4:02pm UTC](https://openfhe.discourse.group/t/matrix-multiplication/180/1 "2022-10-26T16:02:54Z")
Hi all,
While waiting for the next OpenFHE release, I implemented some methods to perform inner product and vector-matrix multiplication using OpenFHE, such as column/row-based packing and alternate packing from POSEIDON (Sav et al.).
You can find the code/poc/draft here [GitHub - FedericoMazzone/openfhe-ml](https://github.com/FedericoMazzone/openfhe-ml)
This is my first attempt at using OpenFHE (and actually C++), so be aware that the code is quite messy.
---
### Author:  [@FMazzone](https://openfhe.discourse.group/u/FMazzone)
#### Post date: [December 6, 2022, 1:46pm UTC](https://openfhe.discourse.group/t/matrix-multiplication/180/2 "2022-12-06T13:46:39Z")
For those interested, I’ve added:
- [an example of inference for a small NN model](https://github.com/FedericoMazzone/openfhe-ml/blob/main/src/ml_inference.cpp);
- [a proof of concept for BFV threshold boostrapping, Enc2Share, Share2Enc](https://github.com/FedericoMazzone/openfhe-ml/blob/main/src/threshold_bootstrap_BFV.cpp) (by Mouchet et al.).