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I've defined a matrix "a={{1,1},{2,2}}" and I tried finding out its rank by "Matrixrank [a]", however it only gives output "Matrixrank{1,1},{2,2}}". I tried several different matrices, as well as symbolic ones, but it doesn't tell the rank. Also, Matrixform doesn't give matrix in matrix form, if that helps. I'm using Mathematica 12.1 trial version.

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  • $\begingroup$ Try MatrixRank ! $\endgroup$ Commented Oct 11, 2020 at 10:57
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    $\begingroup$ It is MatrixRank not Matrixrank. Case-sensitive. $\endgroup$
    – Edmund
    Commented Oct 11, 2020 at 10:57
  • $\begingroup$ @UlrichNeumann You got me by a few seconds. LOL! $\endgroup$
    – Edmund
    Commented Oct 11, 2020 at 10:59
  • $\begingroup$ Thank you, problem solved! $\endgroup$
    – Svit
    Commented Oct 11, 2020 at 11:00
  • $\begingroup$ @Edmund My answer was a little bit shorter to gain time... ;-) $\endgroup$ Commented Oct 11, 2020 at 11:02

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