[OS X TeX] colorbox

[Alain Schremmer]

On Jul 30, 2008, at 2:22 PM, Peter Dyballa wrote:

>
> Am 30.07.2008 um 18:59 schrieb Bruno Voisin:
>
>> Yellow fraction line:
>> $\color{yellow}\dfrac{\color{black}a}{\color{black}b}$.
>
>
> I don't think that Schremmer wants to change the colour of this  
> line, he rather wants to emphasise on this particle and build a  
> relation between a negative exponent (starting with a line like -)  
> and dividing 1 exponent times by the number, i.e., 1 over (another  
> line) number \times number \times number ... And similarly for  
> positive exponents.

Indeed. Highlighting, as you would with a yellow marker.
>
> He is writing a schoolbook ... or one for kindergarten use?

No way! With kindergarten children, I could do, as I have done, real  
mathematics. This text is for the mathematical victims of a peculiar  
American institution called Developmental Education.

Here is the recipe for creating Developmental Students: You severely  
maim kindergarten children with a few well honed techniques, you then  
let them stew for 12 years in school and, "voilà" as my colleagues  
would say in English: They are ready for Developmental Education.

> Working title: Magnus Opium.

Well, that's for the cognoscenti.

The more modest title is:

 From Arithmetic to Differential Calculus in Three Semesters with a  
Chance of Passing the Sequence Significantly Higher Than the Current  
Pass Rate of Less Than One Quarter of One Percent in the Traditional  
Six Semester Sequence.

Regards
--schremmer


P.S. Since this is severely off topic, I would suggest that any  
response occur as "comments" on http://www.freemathtexts.org/Notes/  
(The list there is still at the conceptual stage.)