[MacPorts] #48590: armadillo @5.300.4_0: update to 5.400.2

[MacPorts]

#48590: armadillo @5.300.4_0: update to 5.400.2
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 Reporter:  mschamschula@…       |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.3.3
 Keywords:  haspatch maintainer  |       Port:  armadillo
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 armadillo has been updated to version 5.400.2:
 * added find_unique() for finding indices of unique values
 * added diff() for calculating differences between consecutive elements
 * added cumprod() for calculating cumulative product
 * added null() for finding the orthonormal basis of null space
 * expanded interp1() to handle repeated locations
 * expanded unique() to handle complex numbers
 * faster flupud()
 * faster row-wise cumsum()
 * fix for k-means clustering in gmm_diag class

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Ticket URL: <https://trac.macports.org/ticket/48590>
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