Classification
518 - Numerical analysis
1,021
515 - Analysis
420
004 - Data processing & computer science
382
519 - Probabilities & applied mathematics
318
005 - Computer programming, programs & data
206
620 - Engineering & allied operations
202
006 - Special computer methods
174
003 - Systems
152
512 - Algebra
96
530 - Physics
96
510 - Mathematics
90
621 - Applied physics
74
511 - General principles of mathematics
49
600 - Technology
44
700 - The arts; fine & decorative arts
42
516 - Geometry
36
900 - History & geography
36
531 - Classical mechanics; solid mechanics
32
333 - Economics of land & energy
28
000 - Computer science, information & general works
25
500 - Natural sciences & mathematics
24
629 - Other branches of engineering
24
570 - Life sciences; biology
22
658 - General management
20
624 - Civil engineering
19
330 - Economics
18
551 - Geology, hydrology & meteorology
14
576 - Genetics & evolution
14
363 - Other social problems & services
13
550 - Earth sciences
11
610 - Medicine & health
8
414 - Phonology & phonetics
7
660 - Chemical engineering
7
670 - Manufacturing
7
025 - Library operations
6
539 - Modern physics
6
340 - Law
5
523 - Specific celestial bodies & phenomena
5
612 - Human physiology
5
380 - Commerce, communications & transportation
4
514 - Topology
4
537 - Electricity & electronics
4
540 - Chemistry & allied sciences
4
541 - Physical chemistry
4
580 - Plants (Botany)
4
616 - Diseases
4
910 - Geography & travel
4
001 - Knowledge
3
332 - Financial economics
3
543 - Analytical chemistry
3
more ...