Differential equations-- Analysis-- Mathematics 338 Mathematical analysis 282 Mathematics 275 Functions of complex variables-- Analysis-- Mathematics 253 Analysis 228 Numerical analysis 220 Analysis-- Mathematics 211 Functional analysis-- Mathematics 192 Spectrum analysis 185 Functional analysis 183 Applied numerical analysis-- Applied mathematics 179 Functions of real variables-- Analysis-- Mathematics 177 Regression analysis 143 Discourse analysis 142 System analysis 140 Fourier and harmonic analysis 130 Security analysis--Portfolio management 125 Operational calculus-- Functional analysis-- Mathematics 109 Combinatorial analysis 106 Multivariate analysis 106 Multivariate Analysis 88 Investment management--Investment analysis 85 Data processing 75 Statistics 71 Combinatorial analysis-- Mathematics 69 Measure theory-- Analysis-- Mathematics 68 Investment analysis 65 Special functions-- Analysis-- Mathematics 61 Time-series analysis 59 Instrumental analysis 58