outputting a double to n decimal places

[DanielG]

is there any command to do this? or is the only way to write a function specifically for it?

[SJ]

use printf

http://www.cplusplus.com/reference/clibrary/cstdio/printf.html

[wtd]

Using printf is exactly the wrong answer. "printf" is a C function. You're using C++, so you need to be using iostreams and setprecision.

[DanielG]

Thanks