MATLAB: Convert an array of alphabet letters into numbers ; A =a1, B =2, C = 3 etc.

convert an array of alphabet letters into numbersMATLAB

Hi everyone can you have me solve this problem
i have a code change numbers into letters is 
Alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
numbers = [3,6,12,1,1,3]
letters = Alphabet(numbers)
Can you give me a code change letters into numbers ?
Thanks you very much

Best Answer

Alphabet = ['C      F      L      A      A      C' ];
[ii, lo] = ismember(Alphabet, 'A':'Z');
Numbers = lo(ii)
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