MATLAB: Represent the result of matrices manipulation as rational numbers

rational

Hi everyone

I need to represent my resultant matrix with rational number rather than decimal point.

for example I have matrix A = [ 1/2 1/3 ; 4 5/6]

B = [ 2 1/4 ; 4 1 ]

C = A+B

how to get C as [ 5/2 7/12 ; 8 11/6]

Best Answer

format rat 
A = [ 1/2 1/3 ; 4 5/6]
B = [ 2 1/4 ; 4 1 ] 
C = A+B

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MATLAB: Matrix manipulation

f = fopen('test.txt');
c = textscan(f,'%f');
fclose(f);
out = reshape(c{:},[],3)'

MATLAB: Matrix Manipulation

A = [1; 1; 3; 1; 2; 1; 1; 1; 3; 1; 1; 1; 1; 2; 1; 1; 1; 1; 1; 3; 1; 1; 1; 2; 1; 1; 1; 1; 1; 2; 2; 1; 1; 1; 2; 1; 1; 2; 1; 1; 1; 1; 1; 1; 3; 1; 1; 3; 2; 1; 1; 1; 1; 1; 1; 1; 2; 2; 4; 1; 1; 2; 1; 1; 1; 1; 2; 2; 1; 1; 1; 3];
a1=find(A==2)-1; %find the index of the 2
a2=find(A==3)-1; %find the index of the 3
a2=repmat(a2,2,1) %duplicate the 3 indexes
B=sort([a1;a2])'; %join and sort the solution, also transpose
%I transposed B because of your B example

Best Answer

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MATLAB: Matrix manipulation

MATLAB: Matrix Manipulation

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