Talk:Damm algorithm: Difference between revisions

Revision as of 23:55, 26 January 2015

Revision as of 19:42, 11 February 2015

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<blockquote>

Assuming a number …with digits numbered left to right <i>d₁d₂d₃d₄</i> . . . and a "working“working digit"digit” <i>w</i> we then –

# Set <i>w</i> = 0

# Successively set <i>w</i> = <i>M[w, d_i]</i>, working from the left (row <i>w</i>, column <i>d_i</i> of the matrix).

# Append the final <i>w</i> as the check digit.

</blockquote>