converting double to string
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I am making a vigenere cipher function with a varying alphabet, with inputs (message,key,alphabet)
e.g ('AVECAESAR','ROME','A':'Z')
I presume I have to convert alphabet to string, and then work the cipher out from there, but I don't know how to do this. I can't seem to get anything but 0 from alphabet.
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Answers (3)
Thomas
on 27 Mar 2012
function vigenere(message,key,alphabet)
message
key
alphabet
y=double(alphabet)
end
Where are you getting stuck?
>> vigenere('AVECAESAR','ROME','A':'Z')
message =
AVECAESAR
key =
ROME
alphabet =
ABCDEFGHIJKLMNOPQRSTUVWXYZ
y =
Columns 1 through 5
65.00 66.00 67.00 68.00 69.00
Columns 6 through 10
70.00 71.00 72.00 73.00 74.00
Columns 11 through 15
75.00 76.00 77.00 78.00 79.00
Columns 16 through 20
80.00 81.00 82.00 83.00 84.00
Columns 21 through 25
85.00 86.00 87.00 88.00 89.00
Column 26
90.00
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C.J. Harris
on 27 Mar 2012
To convert string to double:
x = 'AVECAESAR';
y = double(x);
To convert double to string:
x = [65 86 69 67 65 69 83 65 82];
y = char(x);
3 Comments
Jonathan Sullivan
on 27 Mar 2012
It doesn't give me a "little box." It gives me ABCDEFGHIJKLMNOPQRSTUVWXYZ.
C.J. Harris
on 27 Mar 2012
Try this, I can assure you it will not give you any kind of Euclidean shape:
double(char('A':'Z'))
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