Matrix manipulation

• Shape tests
  • iscolumn — check if a variable is a column
  • ismatrix — checks if an object is a non-empty 1D or 2D matrix or array
  • isrow — check if a variable is a row
  • isscalar — check if a variable is a scalar.
  • issquare — check if a variable is a square matrix
  • isvector — check if a variable is a vector
• cat — concatena vários arrays
• flipdim — reverses the order of (blocks of) rows, columns, pages.. of an array
• matrix — Muda a forma de vetores ou matrizes
• permute — permutes the dimensions of an array
• pertrans — matriz pertransposta
• resize_matrix — trim or/and extend (and cast) a matrix or hypermatrix
• squeeze — remoção de dimensões singletons