
## Duals

![Parity check and repetition codes are dual](/img/Uni/CaC/ECC/dual_parity.png)

## Systematic form

![Systematic form](/img/Uni/CaC/ECC/systematic_form.png)

## Parity check matrix

![Parity Check Matrix](/img/Uni/CaC/ECC/pc_matrix.png)

You can use the knowledge of these two values to then find out the value of $k$


Linear codes

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