>> sqrt(3M) 1.73205080756887729352744634150587E0 >> x = 3.14159265358979323846264338327950M 3.14159265358979323846264338327950E0 >> sqrt(x) 1.77245385090551602729816748334114E0The precision of MPF can be rest by assigning a multiple to global variable global.mpf_ndigits.
The default value of mpf_ndigits is 128, therefore an mpf may have 128 significant binary digits as opposed to 52 for double. The value of mpf_ndigits. can be set to a multiple (at least 2) of 32.
If a number has the suffix L it is treated as a long integer, which can be as big as the computer memory allows. For example
>> 128L ^ 20L 1393796574908163946345982392040522594123776