Array Sections - Visualisation

Given,

    REAL, DIMENSION(1:6,1:8) :: P

Consider the following assignments,

• P(1:3,1:4) = P(::2,::2) and
  P(1:3,1:4) = 1.0 are valid.
• P(2::2,:7:3) = P(1:3,1:4) and
  P(2::2,:7:3) = P(2:5,7) are not.
• P(2:5,7) is a 1D section whereas
  P(2:5,7:7) is a 2D section

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