Different websites suggest using one of those two packages.
\usepackage{graphicx}
\usepackage{graphics}
What are differences between them? Which is better?
[Tex/LaTex] Packages: graphics vs graphicx
graphicspackages
Related Solutions
For powerful graphics I would recommend Asymptote. It has a C++ type object orientated syntax and is not that difficult to learn (I can still not figure out any the tricks of TikZ ;-) I would say some of the main strong points are (but look at the gallery on the webpage):
- Full math and linear algebra engin
- Full 3D including active 3D pictures in PDF
- Use LaTeX to set all text and math
- It can be inlined in Latex but is normaly better to use it for standalone graphics.
It is also very good with large data sets and the manupulation thereof. I have used one graph template for all the graphs in my PhD to obtain the same sizes, line thickness, markers, etc. It is also fairly easy to do the figure below where the data was imported from a Discrete element Simulation and manipulated in Asymptote
I didn't use these packages (I have written my own, which I'm redesigning now, and I had a talk about it during EuroBachoTeX 2011 - you can download the slides from http://www.gust.org.pl/bachotex/2011/program#section-5), but I've skimmed through their docs and this is what I can say:
With exercise you can typeset exercises (possibly split in parts) with answers. You can hide (= not typeset) exercises or answers, or typeset exercises or answers in another part of the document (although they are remembered in a vbox, which is imho one of the worst ways usually). With each exercise you can associate its origin and difficulty (and typeset them if you wish). You can customize the way an exercise is displayed, and also you can select exercises to typeset (based on a list of labels). Markup is quite nice, maybe not the best possible (personally, I tend more towards more formalized markup, like in XML, not the free-form known in the LaTeX world), but still.
The answers package seems to be quite sophisticated and powerful, although not very user-friendly. Probably not something you would like to use five minutes before your deadline, but definitely worth checking. Ah, and the name Joseph Wright should guarantee that it works well.
The probsoln package is written by Nicola Talbot (quite a prolific and good package author - you should definitely check her
datatoolbundle!), and seems to be less complicated (and less powerful) thananswers, but is probably a bit more user-friendly. Also, it has a few quite unique features: you can select a random subset from a pool of exercises, and also you have\correctitemand\incorectitemfor use inenumerate-like environments (these commands mark right and wrong answers in choice tests, but only if you typeset your exercises with solutions.).
Hope that helps.
I'd also recommend reading my slides (which I mentioned before). They are far from perfect (and may contain mistakes), but they contain some possibly useful information. One of the more important isuues is that when typesetting problem sets you should definitely consider some design problems: do you want to maintain a separate, external problem-database (and if yes, should it be generated manually or with the extract package or a similar way) or not? (There are other design issues like that.)
(In case you have any questions about those slides, feel free to email me at mbork, then the "at" sign, then mbork, then dot and finally pl.)
As I mentioned, I'm currently designing my own package with the same purpose, which (I hope) will have some unique features I personally need, too; it will be definitely easier to use than answers, but will have a similar set of features (and even more). Unfortunately, I have no idea when I'll be able to release usable code (a few months seem to be a reasonable time).
Best Answer
Most modern people use
graphicx!