enlarge the numbers in matlab

how to enlarge the numbers in matlab exemple: 3/54 =0.0556 but i need just this result 3/54 =0.056 what can i do pleace help me, thank you in advence

Answer 1

[per isakson]

See roundn(x,n) returns x rounded to n digits in the File Exchange.

In a comment of that contribution there are links to some more.