how to ➢get zeros beneath the pivot in each column.

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Ahmed
Ahmed 2020-11-17
回答： Monisha Nalluru 2020-11-20
function [x] = g_elimination( A,b )
[M,N] = size(A);
if M ~= N
error('Matrix A is not a square') ;
end

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回答（1 个）

Monisha Nalluru
Monisha Nalluru 2020-11-20
Hi Ahmed,
From my understanding, you want to add a row of zeros to matrix. This can be done in many ways,
First create a zeros matrix of required 1 by N where N is number of columns. After use direct assignment or cat function
As an example
A=[1 2 3; 3 4 5; 6 7 8];
Z=zeros(1,3);
newarray=[A;Z]
or
newarray= cat(1,A,Z)

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