numpy.tril(a, k=0) : Returns copy of array with lower part of the triangle w.r.t k
Parameters :
a : input array
k : [int, optional, 0 by default]
Diagonal we require; k>0 means diagonal above main diagonal or vice versa.
Returns :
Lower triangle of a, having same shape and data-type as a.
# Python Programming illustrating # numpy.tril method import numpy as geek # string input a = geek.matrix([[1, 21, 30], [63 ,434, 3], [54, 54, 56]]) print("Main Diagonal elements : \n", geek.tril(a), "\n") print("Diagonal above main Diagonal elements : \n", geek.tril(a, 1), "\n\n") print("Main Diagonal elements : \n", geek.tril(a, -1)) |
Output :
Main Diagonal elements : [[ 1 0 0] [ 63 434 0] [ 54 54 56]] Diagonal above main Diagonal elements : [[ 1 21 0] [ 63 434 3] [ 54 54 56]] Main Diagonal elements : [[ 0 0 0] [63 0 0] [54 54 0]]
References:
https://docs.scipy.org/doc/numpy/reference/generated/numpy.tril.html#numpy.tril
Note :
These NumPy-Python programs won’t run on online IDE’s, so run them on your systems to explore them
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