Algebra Mathematics 234 Trigonometry 200 Data processing 176 Textbooks 134 Computer science 117 Graphic methods 79 Functions 55 Number theory 52 Geometry 50 Geometry, algebraic 50 Computational complexity 45 Group theory 43 Computer software 36 Problems, exercises, etc 33 Algorithms 32 Artificial intelligence 31 Arithmetic 29 Logic design 29 Logic, Symbolic and mathematical 27 Combinatorics 21 Field theory (Physics) 21 Geometry, Analytic 21 Software engineering 21 Global analysis (Mathematics) 19 Study and teaching 19 Topological groups 19 Algebraic topology 18 Mathematical physics 18 Matrix theory 17