Re: Question about exponent shorthand

*To*: mathgroup at smc.vnet.net*Subject*: [mg83831] Re: [mg83803] Question about exponent shorthand*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Sun, 2 Dec 2007 04:02:35 -0500 (EST)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <200712011038.FAA28030@smc.vnet.net>*Reply-to*: murray at math.umass.edu

That makes sense to me: I would no more expect to be able to use, say 12.(34) for "readability" yet standing for 12.34 -- actually, Mathematica would interpret the former as a product of 12. with 34 -- than I would be able to use 1*^(-5). The direct, explicit notation for a number doesn't allow parenthesis punctuation within in. But if you don't want to sacrifice the readability of parentheses, you could of course use 10^(-5). Or, better yet, use superscripts on 10 in StandardForm input for powers. Curtis Osterhoudt wrote: > Hi, all, > > I've just got used to using the character shortcut *^ to stand for "times > 10 to the power of". As expected, these two expressions work: > 1*^5 --> 100000 > 1*^-5 --> 1/100000 > > But putting parentheses around the exponent (as I'd prefer to do for > readability) leads to > > Input: 1*^ (-5) > > Output: Syntax::sntxb:Expression cannot begin with "1.(-5)". > > Syntax::tsntxi:"1.^" is incomplete; more input is needed. > > Syntax::sntxi:Incomplete expression; more input is needed. > > > This is on > > In[45]:= $Version > > Out[45]= "6.0 for Linux x86 (32-bit) (June 19, 2007)" > > > Any clues? > > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Question about exponent shorthand***From:*Curtis Osterhoudt <cfo@lanl.gov>