Decimal to binary and unary

Please help me to write matlab code for decimal to both binary and unary.I need to make decimal to binary and unary which is used in rice codes.

[Walter Roberson]

Which unary coding? http://en.wikipedia.org/wiki/Unary_coding

And do you need to include negative values? How about fractional values?

[Pooja]

Yes this unary coding.Actually the concept is over there in http://en.wikipedia.org/wiki/Golomb_coding. Shouldnt need fractional and negative values.

[Walter Roberson]

Do you want the end-of-string marker to be 0's or 1's?