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Binary to decimal using recursion

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Rick on 12 Aug 2014
Hello, I'm trying to figure out how to write a function that will convert binary to decimal using recursion. BA is a 1 x n array of binary digits
function y = Bin2dec(BA)
n = length(BA);
if n == 1
y = BA;
y = Bin2dec(BA(n-1));
but I can't figure out the recursive part

Answers (1)

Salaheddin Hosseinzadeh
Salaheddin Hosseinzadeh on 12 Aug 2014
Hi Rick,
You're aware of the MATLAB built in bin2dec function ain't u?
I've no idea if it's possible to call "Bin2dec" function from "Bin2dec" function?!!!
change the function name so that it won't interfere with matlab function
function y = _bin2dec(BA)
y = 0; BA = num2str(BA);
for n = 1:length(BA)
y = y + str2num(BA(n))^n-1;
hopefully that will do! ;)
Good Luck


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