This is more for overview of my own than for teaching or exercise.
Overview of the areas
 Arithmetic · 'elementary mathematics' and similar concepts
 Set theory, Category theory
 Geometry and its relatives · Topology
 Elementary algebra  Linear algebra  Abstract algebra
 Calculus and analysis
 Logic
 Semisorted
 : Information theory · Number theory · Decision theory, game theory · Recreational mathematics · Dynamical systems · Unsorted or hard to sort
Math on data:
 some introduction · areas of statistics
 types of data · on random variables, distributions
 Virtues and shortcomings of...
 on sampling · probability
 glossary · references, unsorted
 Footnotes on various analyses
 Other data analysis, data summarization, learning
 Data modeling, restructuring, and massaging
 Statistical modeling · Classification, clustering, decisions, and fuzzy coding ·
 dimensionality reduction ·
 Optimization theory, control theory · State observers, state estimation
 Connectionism, neural nets · Evolutionary computing
 Formal grammars  regular expressions, CFGs, formal language
 Signal analysis, modeling, processing
 Image processing notes

This article/section is a stub — probably a pile of halfsorted notes and is probably a first version, is not wellchecked, so may have incorrect bits.

(TEMPORARILY THROWN INTO BIG HEAP)