Re: standard floating point arithmetic in Mathematica?
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- Subject: [mg132493] Re: standard floating point arithmetic in Mathematica?
- From: David Annetts <david.annetts at iinet.net.au>
- Date: Sun, 30 Mar 2014 04:42:31 -0400 (EDT)
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Hi Richard, The package was NumericalMath`Microscope, the functionality of which, has been included (apparently) in ``ComputerArithmetic. D. On 29/03/2014 14:14, Richard Fateman wrote: > 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. > > > --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com
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- Re: standard floating point arithmetic in Mathematica?
- From: Richard Fateman <fateman@cs.berkeley.edu>
- Re: standard floating point arithmetic in Mathematica?