Date: May 21, 2013 4:21 AM
Author: Bob Hanlon
Subject: Re: setting highlight color and font size


(1) I don't know.

(2) An easy thing to do is to change the display magnification at the
bottom of the workbook window or use the menu command

Window | Magnification


(3) Until assigned a value, what you type is a Symbol.


Head /@ {word, 2, Pi, Pi // N, 3.14, 1/4, "str"}


{Symbol, Integer, Symbol, Real, Real, Rational, String}


#[word] & /@ {Head, StringQ, NumericQ}


{Symbol, False, False}


word = 2;


#[word] & /@ {Head, StringQ, NumericQ}


{Integer, False, True}


word = "str";


#[word] & /@ {Head, StringQ, NumericQ}


{String, True, False}


word =.


#[word] & /@ {Head, StringQ, NumericQ}


{Symbol, False, False}



Bob Hanlon


On Tue, May 21, 2013 at 12:04 AM, Dushan Mitrovich <dushanm@nnips.net>wrote:

> I'm running Mathematica 9.01 under Mountain Lion X.8.3, and have 3
> questions to
> which I haven't been able to find answers:
>
> * When some text, or a cell is selected the highlight background color
> is now a light blue; where do I change that default? I don't recog-
> nize anything in Option Inspector that does that.
>
> * The Input command produces a box into which one can type something;
> I would like to change the default font and size of what is typed
> to something more easily readable. Where is that done?
>
> * In the Input box, if I type in some word, Mathematica does not consider
> that to be either a string or numeric (StringQ and NumericQ both
> produce 'False'). So what is it, and how does one learn an object's
> type other than by testing?
>
> Thanks for the help.
>
> - Dushan
> [ reverse the middle word of address to reply ]
>
>