LaTeX boasts nearly perfect means of drawing and visualizing scientific data and schemes. Among them there are: Metapost, Asymptote, PSTricks and TikZ .

- Metapost is a programming language, interpreted into either PS or SVG. It looks like to be the first approach to the Tex-graphics in its kin.
- Asymptote is a programming vector graphics language, inspired by Metapost, allowing to expand TeX capabilities from 2D into 3D. It also has capabilities in exporting drawings in different formats.
- PSTricks is a collection of macros allowing the direct inclusion of Post Script language in TeX. Creation of graphs can be simplified by additional packages like pst-plot and many, many others (check out the examples section on the homepage). Roughly, PSTricks is able doing everything PS can, and also is limited by it.
- TikZ/PGF is a package, consisting of lower-level (PGF) programming language and higher level (TiKZ) user-friendly layer for it. It is quite similar to PSTricks, however the “raw” PS support is more limited.

Having some experience with the last of them, I prefer TiKZ over PSTricks.

The reasons are:

- Easier PDF output in TikZ (can be achieved in PSTricks using pst-pdf package or by
` latex && dvipdf`

),
- inline picture inclusion, e.g. \tikz \draw[domain=0:360,smooth,variable=\t] plot ({sin(\t)},\t/360,{cos(\t)});
- more powerful mathematical engine, ( in PSTricks one could use pst-math, pst-func, pst-add and others);
- VERY powerful concept of \datavisualization , one could also use pfgplots package for the same result,
- powerful nodes and graphs packages,
- easier extension of TikZ package for your needs using pgf-language.

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