
Re: standard floating point arithmetic in Mathematica?
Posted:
Mar 29, 2014 2:15 AM


On 3/27/2014 2:00 AM, Alan wrote: > I would like to illustrate some limitations with floating point > calculations. Can I force Mathematica to do floating point > computations at a standard float size and the display the full > results (as the same size float)? > > E.g., if I enter 0.1+0.2 I would like to see 0.30000000000000004 > > Thanks, Alan Isaac >
If you are looking at the IEEE 754 binary standard, you would probably be better off looking at the hexadecimal representation because the decimal conversion adds complications and sometimes mystery.
There is (or used to be) a floating point calculator online that provided these operations. I can't spot it right now, but it provided single/double hex/binary/decimal add/mult etc.
It seems to me that Mathematica had some kind of package to extract fraction/exponent etc from IEEE numbers, and I expected someone to point this out.

