Talk:Spark (mathematics)

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Definition in case of full column rank[edit]

The article says, "If all the columns are linearly independent, $\mathrm {spark} (A)$ is usually defined to be $m+1$ ". However, I'm questioning this claim. For instance, I wonder if it "should" instead be e.g. $n+1$ . The two supporting references do not seem relevant; the Princeton Companion to Applied Mathematics article does not consider the full-column-rank case, and the Industrial Mathematics and Complex Systems chapter does not apply. Thatsme314 (talk) 22:18, 8 May 2024 (UTC)[reply]

I agree. There is an m+1 lower in the article that actually does make sense, and I imagine that this m+1 occurred as an accidental result of copying that other m+1. Other sources like this one say that it should be n+1, and that makes much more sense. 76.11.97.150 (talk) 17:56, 4 June 2024 (UTC)[reply]