Jimmy, thank you for the tip! i went there and added my modest suggestions to the proposal. https://github.com/golang/go/issues/19623
Tamás, you make a very important point. It is one that GRI did a very good job of in big.Float. The question of how to specify precision for variable-precision floating point math is tricky. He does it by making each variable carry a precision, allows users to change this, and has rules for the precision of results of operations between values of same or differing precisions. One implication of this issue is in handling something like 1/3. I have software that converts such expressions to big.rat and then once the target big.float exists with its chosen precision, does the conversion. In one of these cases I have three different extended precisions going in the same application, one for parameters (50 digits plus guard digits), one for computation (less or more depending on dynamic precision needs), and one fast and tuned doubled-precision (128-bit float) for very intensive inner computations. Situations like this make it a little complicated for fractions and also for constants (Pi, Tau, E, ...), which are no longer constants but must be functions since they need to work more or less based on the precision of the desired result. A little messy. On Sat, Aug 19, 2017 at 10:03 AM, Tamás Gulácsi <tgulacs...@gmail.com> wrote: > What is an arbitrary precision float? 1/3, Pi, ✓2 ? > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- Michael T. Jones michael.jo...@gmail.com -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
