Manuals/calci/PENTADIAGONAL

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MATRIX("PENTADIAGONAL",order)


  • is the size of the Pentadiagonal matrix.

Description

  • This function gives the pentadiagonal matrix of order 3.
  • A pentadiagonal matrix is a matrix that is nearly diagonal.
  • So it is a matrix in which the only nonzero entries are on the main diagonal, and the first two diagonals above and below it.
  • The form of pentadiagonal matrix is:

.

  • When n is the size of the matrix, a pentadiagonal matrix has atmost 5n-6 nonzero entries.
  • Here MATIRX("pentadiagonal") is showing the penta diagonal matrix of order 3 with the integer numbers.
  • Also in Calci users can get a deimal values with positive and negative numbers.
  • The syntax is to get the decimal penta diagonal matrix is MATRIX("pentadiagonal:negative") and MATRIX(pentadiagonal:positive")