Re: Printing numbersDavid Bailey,dbaileyconsultancy.co.uk

*To*: mathgroup at smc.vnet.net*Subject*: [mg54702] Re: Printing numbersDavid Bailey,dbaileyconsultancy.co.uk*From*: Steve Gray <stevebg at adelphia.net>*Date*: Sun, 27 Feb 2005 01:29:44 -0500 (EST)*References*: <cvhhj7$rdr$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Actually PaddedForm is closest to what I wanted. I wasn't aware of it due to conscientious but not quite adequate searching in Help and in 4 books. Thanks to everyone who answered. Steve Gray On Wed, 23 Feb 2005 09:15:19 +0000 (UTC), David Bailey <dave at Remove_Thisdbailey.co.uk> wrote: >Steve Gray wrote: >> 1. Can anyone tell me why these results are what they are? Neither answer is what I would expect, >> which is 10. The two strings are the same length. >> >> Print[StringLength[ToString[123.456789]], " ", >> StringLength[ToString[1234567.89]]]; >> 7 22 >> >> 2. Is there a simple, easily available or self-evident way to get numbers printed out such that the >> total number of spaces occupied by the print before the decimal point is some fixed, user-specified >> amount, the number of spaces occupied after the decimal point is a different user-specified amount, >> and the number of spaces following the number is a third user-specified amount. The goal is to >> easily produce aligned columns of numerical printing, which would seem to be the most trivial task >> in neat number printing. >> For example if the function is called fprint, fprint[345.678,4,5,6] would print 4 spaces >> followed by 5 character positions to the left of the point (00345 or (2 spaces)" 345", specified by >> another argument), and 6 to its right. So fprint[345.678,4,5,6] would print (4 spaces)(2 >> spaces)"345.678"(3 spaces), or if desired (4 spaces)(2 spaces)"345.678000"(no spaces), the total >> taking up 16 positions. Also fprint[-345.678,4,5,6] would print (4 spaces)(1 space)"-345.678"(3 >> spaces), also taking 16 positions, with the decimal points aligned with the first example. >> Help is not that helpful, implying that I have to write one or find it somewhere. As I >> recall, C provides an easy way to do this by setting arguments to Print. >> Leads would be appreciated. >> >> Steve Gray >> >> > >Lookup NumberForm, ScientificForm and EngineeringForm > > >David Bailey >dbaileyconsultancy.co.uk