Constructs a new BigFloatEnv.
new BigFloatEnv(prec?, rndMode?)
prec optional
The precision in bits. If not given, taken from the current global floating point environment.
rndMode optional
The rounding mode. If not given, the rounding is RNDN.
BigFloat.div(123.456l, 0.6l, new BigFloatEnv(16, BigFloatEnv.RNDA))
205.76171875