Display double number with 6 digits exactly

Hello,

I would like to create a string that will contain a double number. This number should be represented with 6 digits exactly.

For example:

x = 12.45;
str_x = sprintf('The number is %f\n', x);

should output 12.4500

Answer 1

[Stephen23]

sprintf('The number is %#.6g', 12.45)

ans = 'The number is 12.4500'

sprintf('The number is %#.6g', 2)

ans = 'The number is 2.00000'

[Askic V]

Thank you Stephen!