Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.soft-sys.math.mathematica > #16705

Re: standard floating point arithmetic in Mathematica?

From David Reiss <dbreiss@gmail.com>
Newsgroups comp.soft-sys.math.mathematica
Subject Re: standard floating point arithmetic in Mathematica?
Date 2014-03-28 07:30 +0000
Message-ID <lh38fg$s0h$1@smc.vnet.net> (permalink)
References <lh0pbt$m4l$1@smc.vnet.net>
Organization Time-Warner Telecom

Show all headers | View raw


Both CForm and FortranForm will do what you illustrate:

In[1]:= CForm[0.1+0.2]
Out[1]//CForm=
0.30000000000000004
In[2]:= FortranForm[0.1+0.2]
Out[2]//FortranForm=
0.30000000000000004



On Thursday, March 27, 2014 5:00:45 AM UTC-4, 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

Back to comp.soft-sys.math.mathematica | Previous | NextPrevious in thread | Next in thread | Find similar


Thread

standard floating point arithmetic in Mathematica? Alan <alan.isaac@gmail.com> - 2014-03-27 09:00 +0000
  Re: standard floating point arithmetic in Mathematica? "Nasser M. Abbasi" <nma@12000.org> - 2014-03-28 07:31 +0000
  Re: standard floating point arithmetic in Mathematica? Kevin <kjm@KevinMcCann.com> - 2014-03-28 07:31 +0000
  Re: standard floating point arithmetic in Mathematica? David Reiss <dbreiss@gmail.com> - 2014-03-28 07:30 +0000
  Re: standard floating point arithmetic in Mathematica? Richard Fateman <fateman@cs.berkeley.edu> - 2014-03-29 06:15 +0000
  Re: standard floating point arithmetic in Mathematica? David Annetts <david.annetts@iinet.net.au> - 2014-03-30 08:42 +0000

csiph-web