how to center a string

The goal of this question is to create a function named padLine which inputs a string (char, 1 × N) and a linewidth (integer, scalar). The function then pads the string with spaces (if N<linewidth) in an attempt to center the string the function should output the padded string (char,1xlinewidth).

for example

out=padline('2',9);

disp(out)

xxxx2xxxx

where x is a space

Answer 1

[Peng Li]

function out = padline(c, n) if n > length(c) n2add = floor((n - c) / 2); out = [repmat(‘ ‘, 1, n2add) c repmat(‘ ‘, 1, n - length(c) - n2add)]; else out = c; end

typed using cell phone. You may need to replace the ‘ with the correct symbol. Try it.

You may also interested in pad function that works with strings. You can add space to both sides of a string (defined by “ instead of ‘) or a string array.

Answer 2

[Stephen23]

str = '23';
num = 9;
tmp = (num-numel(str))/2;
out = sprintf('%*s%*s',fix(tmp)+numel(str),str,ceil(tmp),'')