how to divide a matrix by its norm in for loop

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Sunil Ojwani 2019-10-25

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评论： Sunil Ojwani 2019-10-25

i want s/|s|

s=[x(2)+x(1);x(1)+x(3)];

i write as it

for i=1:n

s1(i)=x2(i)+x1(i);

s2(i)=x1(i)+x3(i);

sm(:,i)=[s1(i);s2(i)];

if ( x(i)~=0 )

u1(i)=s2(i)/norm(sm(:,i));

u2(i)=-0.1*s1(i)/norm(sm(:,i));

end

pleae help me

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回答（1 个）

Steven Lord 2019-10-25

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There's no need for a for loop here. Just use the norm function and divide. If you were trying to divide each row or each column of the matrix by its vector norm instead of dividing the whole matrix by its matrix norm, use the vecnorm function instead.