| ↑ | 22 | |  → 519 |
| ↑ | 23 | | → 332 519.8 |
| ↑ | 231 | | → 332 519.8 |
| ↑ | 239 | | → 332 519.8 |
| ↑ | 25 | | → 519.6 |
| ↑ | 251 | | → 519.72 |
| ↑ | 252 | | → 519.7 |
| ↑ | 254 | | → 519.76 |
| ↑ | 259 | | → 519.6 |
| ↑ | 26 | | → 519.6 |
| ↑ | 273 | | → 519.3 |
| ↑ | 003 | systems | → 518.6 519.6 ≈ :S.0 |
| ↑ | 004 | hardware, networks, computer science generally | → 519.4 621.39 ≈ :P.0 |
| ↑ | 005.1 | programming | → 511.3 519.7 |
| ↑ | 006.31 | machine learning, data mining | → 005.74 519.54 658.403 |
| ↑ | 310 | general statistics | → 519.5 |
| ↑ | 330.0151 | mathematical economics | → 519.8 ≈ :R.3 |
| ↑ | 338.54 | economic fluctuations | → 519.5 |
| ↑ | 368 | insurance | → 346.08 519.8 |
| ↑ | 510.285 | computers in mathematics | → 005.72 519.4 |
| ↑ | 518 | numerical analysis | → 519.4 |
| ↑ | 530.15 | mathematical physics | → 519.8 531 ≈ :ZA.0 |
| ↑ | 610.72 | medical statistics | → 519 |
| ↑ | 624.17 | structural systems, building science | → 519.4 620.1 |
| ↑ | 658.4 | executive management | → 519.7 ≈ :R.1 |
| ↑ | 658.403 | decisions, information management | → 006.31 153.8 519.53 |
| ↑ | N.0 | | ≈ 519 |
| ↑ | N.1 | | ≈ 519.2 |
| ↑ | N.2 | | ≈ 519.5 MSC 62 |
| ↑ | N.97 | | ≈ 519 |
| ↑ | N.98 | | ≈ 519 esclusi dal prestito |
| ↑ | O.7 | | ≈ 519.6 |
| ↑ | Q.0 | | ≈ 519.8 MSC 00A69 |
| ↑ | Q.1 | | ≈ 519.8 530 MSC 00A79, 92E |
| ↑ | Q.2 | | ≈ 519.8 620 MSC 00A69 pro parte |
| ↑ | Q.3 | | ≈ 519.8 570 MSC 92 tranne 92E |
| ↑ | Q.4 | | ≈ 153 519.8 MSC 91E |
| ↑ | Q.5 | | ≈ 519.8 MSC 91C, 91D |
| ↑ | Q.6 | | ≈ 519.8 MSC 00A69 pro parte |
| ↑ | R.0 | | ≈ 519.8 |
| ↑ | R.1 | operations research, programming theory | ≈ 519.7 658.4 MSC 90 |
| ↑ | R.2 | | ≈ 519.3 MSC 91A |
| ↑ | R.3 | | ≈ 330.0151 519.8 MSC 91B |
| ↑ | AN1 | optimization algorithms | ≈ 519 |
| ↑ | AN2 | numerical analysis | ≈ 519.4 |
| ↑ | AN3 | approximation methods | ≈ 519.4 |
| ↑ | AN4 | numerical methods for partial derivative equations | ≈ 519.4 |
| ↑ | AN5 | numerical methods for ordinary differential equations | ≈ 519.4 |
| ↑ | AN6 | congresses (numerical analysis) | ≈ 519.4 |
| ↑ | CS1 | finite difference | ≈ 519.4 |
| ↑ | CS2 | padding | ≈ 519.4 |
| ↑ | CS3 | finite element | ≈ 519.4 |
| ↑ | CS4 | matrix methods | ≈ 519.4 |
| ↑ | CS5 | numerical methods | ≈ 519.4 |
| ↑ | CS6 | mathematical programming | ≈ 519.4 |
| ↑ | CS7 | conference (Calculation of structures) | ≈ 519.4 |
| ↑ | D1D | Mathematics and mathematics manuals | ≈ 519.4 |
| ↑ | D3A | Design and calculation of structures by electronic computer | ≈ 519.4 |
| ↑ | ET7 | numerical methods for electrical engineering | ≈ 519.4 621.3 |
| ↑ | IV, V | | ≈ 519 |
| ↑ | OM1 | Optimization | ≈ 519.6 519.7 |
| ↑ | OM2 | Theory and methods of optimization | ≈ 519.6 |
| OP | Optimization and operational research | ≈ 519.6 |
| PS | probability and statistics | ≈ 519 |
| ↑ | R3A | Statistics and probability theory | ≈ 519 |
| ↑ | R3B | Applied statistics | ≈ 519 |
| ↑ | R3C | Probabilistic methods applied | ≈ 519.2 |
| ↑ | R3F | Optimization, theory of decisions | ≈ 519.6 |
| ↑ | R4A | Numerical methods | ≈ 624.17 519.4 |
| ↑ | R4B | Finite difference | ≈ 624.17 519.4 |
| ↑ | R4C | Finite element | ≈ 624.17 519.4 |
| ↑ | R4D | Mathematical Programming | ≈ 624.17 519.4 |
| ↑ | R4E | Matrix methods | ≈ 624.17 519.4 |
| ↑ | S.SPEC.42.GB | biometry | ≈ 519 |
| ↑ | SP1 | time series anlysis and forecast techniques | ≈ 519 |
| ↑ | SP2 | multivariate anlaysis and classification techniques | ≈ 519 |
| ↑ | SP3 | experiments drawing | ≈ 519 |
| ↑ | SP4 | probabilistic methods | ≈ 519.2 |
| ↑ | SP5 | pattern-recognition | ≈ 519 |
| ↑ | SP6 | stochastic simulation | ≈ 519 |
| ↑ | SP7 | statistics | ≈ 519 |
| ↑ | SP8 | congresses (statistics and probability) | ≈ 519 |
