Re: Mathematica 6

*To*: mathgroup at smc.vnet.net*Subject*: [mg80343] Re: [mg80311] Mathematica 6*From*: Curtis Osterhoudt <cfo at lanl.gov>*Date*: Sat, 18 Aug 2007 05:34:18 -0400 (EDT)*Organization*: LANL*References*: <200708170550.BAA00238@smc.vnet.net>*Reply-to*: cfo at lanl.gov

On Thursday 16 August 2007 23:50:10 John wrote: > Just installed Mathematica 6. It opens with a blank page called > Untitled 1, but I can't get it to do anything. > > I typed in the following: > > Mean{{1,2,3}], Variance[{1,2,3}] > > and a few other simple calculations, but nothing happens. > > John Just a few quick checks (perhaps silly, but sillier things have been known to trip up computer users): * Though your Variance input is syntactically correct, the Mean input needs to read Mean[{1,2,3}], with a square bracket instead of a curly bracket. Mathematica returns no explicit error on my machine with the wrong input, but does flag the cell with an orange cell marker, indicating an error. Have you tried something as simple as 2-2 (on its own line)? * Are you pressing the Shift-Enter key combination to evaluate your inputs (while the cursor is anywhere on the line where you input your expressions)? Alternatively, if you have a numeric keypad, the Enter key there (no Shift) should work. * If you use Linux, do you also use the Beryl or Compiz compositing software? If so, sometimes Mathematica interacts strangely with it. In the strange cases, you can see some input and output, but not other input or output. If that's the case, either disable Beryl/Compiz or export "XLIB_SKIP_ARGB_VISUALS=1" before you run Mathematica. -- ========================================================== Curtis Osterhoudt cfo at remove_this.lanl.and_this.gov PGP Key ID: 0x4DCA2A10 Please avoid sending me Word or PowerPoint attachments See http://www.gnu.org/philosophy/no-word-attachments.html ==========================================================

**References**:**Mathematica 6***From:*John <jwa0@lehigh.edu>