cmatrix.Matrix.nth_diagonal

Matrix.nth_diagonal()

Get the nth diagonal from the current matrix and given n as a list.

Parameters

Type

Description

n

int

the diagonal index to xtract

mode

int
mode define the profile of algorithm between :

  • 0 => ascendant

  • 1=> descendent

rec

boolean

Recursion manager
Returns
List

the list containing the expected n-th diagonal

See also

size_r()
nth_diagonal()
mirror_mat()
get_ij()
reverse()

Examples

>>> m=rand(4)
>>> print(m)
| +13.000 | +6.000 | +9.000 | +9.000 |
| +12.000 | +16.000 | +2.000 | +13.000 |
| +3.000 | +8.000 | +5.000 | +2.000 |
| +12.000 | +11.000 | +11.000 | +9.000 |
printed
>>> for i in range(0,7):
...     print(m.nth_diagonal(i,0))
...
[13.0]
[6.0, 12.0]
[9.0, 16.0, 3.0]
[9.0, 2.0, 8.0, 12.0]
[13.0, 5.0, 11.0]
[2.0, 11.0]
[9.0]
>>> for i in range(0,7):
...     print(m.nth_diagonal(i,1))
...
[12.0]
[3.0, 11.0]
[12.0, 8.0, 11.0]
[13.0, 16.0, 5.0, 9.0]
[6.0, 2.0, 2.0]
[9.0, 13.0]
[9.0]