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How to remove second digit of first a column

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Vishal Sharma
Vishal Sharma 2017-1-24
关闭： Stephen23 2017-1-24
I have one matrix A = [21 2; 34 3; 13 4] I want to remove first digit of first column, so that result shall be A= [1 2;4 3; 3 4]
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Stephen23
Stephen23 2017-1-24
Duplicate:
https://www.mathworks.com/matlabcentral/answers/321691-how-to-remove-second-digit-of-first-a-column

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KSSV
KSSV 2017-1-24
A = [21 2; 34 3; 13 4] ;
B= [1 2;4 3; 3 4] ;
iwant = A ;
for i = 1:size(A,1)
tmp=str2double(regexp(num2str(A(i,1)),'\d','match')) ;
iwant(i,1) = tmp(2) ;
end
iwant

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