Replace images that represent a formula with a proper formula.
See:
- Polynomial/classPolynomialTraits__d_1_1PolynomialSubresultants.html
- Polynomial/classPolynomialTraits__d_1_1SturmHabichtSequence.html
- Polynomial/classPolynomialTraits__d_1_1Resultant.html
In the file `Polynomial/group__PkgPolynomialFunctions.html#ga0148f1612807b08b433f96c3ce07f2be` we see for the function `number_of_real_roots` in the advanced section that all formulas except 1 are nicely shown as (MathJax) formulas and that one is an image of which the background color is incorrect.
Replacing the image with a proper formula makes all consistent and proper.
In the file Polynomial/doc/Polynomial/CGAL/Polynomial.h we see some spurious backslashes resultin in the file Polynomial/classCGAL_1_1Polynomial.html in:
```
The template argument Coeff must be at least a model of IntegralDomainWithoutDivision. For all operations naturally involving division, an IntegralDomain is required. Polynomial offers a full set of algebraic operators, i.e.\ binary +, -, *, / as well as +=, -=, *=, /=; not only for polynomials but also for a polynomial and a number of the coefficient type. (The / operator must only be used for integral divisions, i.e.\ those with remainder zero.) The operations are implemented naively: + and - need a number of Coeff operations which is linear in the degree while * is quadratic. Unary + and - and (in)equality ==, != are provided as well.
```
Update of documentation in respect of code fragments
- making code fragments work in footnotes
- placing some words in in code tags
- completing some words to code tags
- removing some `#` as they are not necessary
- don't show obfuscation code in email
That's less likely to break if the C++20 rules get reverted
This class is strange, it uses boost operators, but still provides some
operators that boost already provides (and the boost ones have
priority).
right after the merge of 4.14 release branch
+ manual fix on one line in:
* Arrangement_on_surface_2/include/CGAL/IO/Arr_text_formatter.h
* .travis/generate_travis.sh