How to write a Function that returns a matrix

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Sarah Sadeq
Sarah Sadeq 2016-9-30
评论： Walter Roberson 2016-10-3
Write a function named checkerBoard that will receive a positive integer n as an input argument. The function will return an n-by-n matrix made up of alternating ones and zeros as shown in the example below. The first element of the matrix returned (first row, first column: ans(1,1) ) should be 1. I'm stuck on how to write the for loop?
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Sarah Sadeq
Sarah Sadeq 2016-10-3
编辑：Walter Roberson 2016-10-3
I tried this right her
function [ mat ] = checkboard(n)
mat=zeros(n,n);
if rem(n+1,2)==0
mat(1:2:end,2)=1;
mat(2:2:end,2)=1;
else
mod(n,n);
mat(1:2:end)=1;
end
end
However, it doesn't work
Walter Roberson
Walter Roberson 2016-10-3
mod(n,n); doesn't do anything useful. It calculates a value and then throws the value away.

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回答（1 个）

Chi-Hsien Tang
Chi-Hsien Tang 2016-9-30
编辑：Chi-Hsien Tang 2016-9-30
Maybe try checkerboard(1,2,2)==0?

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