Page:Library of Congress Classification Outline.djvu/239

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Subclass QA

QA1-939 Mathematics
QA1-43   General
QA47-59 Tables
QA71-90 Instruments and machines
QA75-76.95   Calculating machines
QA75.5-76.95 Electronic computers. Computer science
QA76.75-76.765   Computer software
QA101-(145) Elementary mathematics. Arithmetic
QA150-272.5 Algebra
QA273-280 Probabilities. Mathematical statistics
QA299.6-433 Analysis
QA440-699 Geometry. Trigonometry. Topology
QA801-939 Analytic mechanics