digits(n)

The digits command controls the number of digits for floating point numbers. The default and minimum is 15, in which case double precision floating point numbers are used. Any higher value invokes software floating point routines which operate in base-10.

Examples

# hardware floating point
0.1 + 0.2 - 0.3;
	1.110223e-16

# software floating point
digits(20);
0.1 + 0.2 - 0.3;
	0