Re: Newbie

*To*: mathgroup at smc.vnet.net*Subject*: [mg24598] Re: Newbie*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Tue, 25 Jul 2000 00:56:29 -0400 (EDT)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <8l3fu0$l07@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

You may be confusing Mathematica's use of the semicolon as a compound-statement separator (special case of nothing following the semicolon gives Null result) with the use of the semicolon in a number of other "computer algebra systems" where a semicolon MUST terminate the expression for it to be evaluated. Had you used such a system before? WantToKnowPlease wrote: > > I've just started using mathematica.... > When I type a command and press (shift)+(enter) I don't see any output > unless I preceded the command by print command > D[x^2];(shift)+(enter) doesn't do anything !!(at least I can't see what it > does) > Print[D[x^2]];(shift)+(enter) prints 2 x > > any help is greatly appreciated -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. phone 413 549-1020 (H) Univ. of Massachusetts 413 545-2859 (W) Amherst, MA 01003-4515