December 2024 against December 2025
What one sitting asked that the other did not — as a share of each paper, because December 2024 carries 200 subject questions and December 2025 carries 98. Comparing raw counts across papers of different sizes invents a trend in every row.
Asked more in December 2024
- Limit Theorems and Markov Chains+2.4 pp
6.5% (13) in December 2024 · 4.1% (4) in December 2025
- Ordinary Differential Equations+1.9 pp
6.0% (12) in December 2024 · 4.1% (4) in December 2025
- Determinants and Matrix Tricks+1.5 pp
1.5% (3) in December 2024 · 0.0% (0) in December 2025
Asked more in December 2025
- Probability-2.1 pp
5.0% (10) in December 2024 · 7.1% (7) in December 2025
- Singularities and Residues-2.1 pp
2.0% (4) in December 2024 · 4.1% (4) in December 2025
- The Real Line-1.6 pp
5.5% (11) in December 2024 · 7.1% (7) in December 2025
Present on one paper and absent from the other
Absent from one sitting is not absent from the syllabus. A topic carrying two questions one session and none the next has told you almost nothing.
Only in December 2024
- Determinants and Matrix Tricks · 3
Only in December 2025
- — none
Every topic, both papers
| Topic | December 2024 | December 2025 | Change |
|---|---|---|---|
| Eigenvalues and Canonical FormsAnalysis & Linear Algebra | 6.0% (12) | 7.1% (7) | -1.1 pp |
| The Real LineAnalysis & Linear Algebra | 5.5% (11) | 7.1% (7) | -1.6 pp |
| ProbabilityProbability, Statistics & Linear Programming | 5.0% (10) | 7.1% (7) | -2.1 pp |
| EstimationProbability, Statistics & Linear Programming | 6.0% (12) | 5.1% (5) | +0.9 pp |
| Limit Theorems and Markov ChainsProbability, Statistics & Linear Programming | 6.5% (13) | 4.1% (4) | +2.4 pp |
| Linear Models and MultivariateProbability, Statistics & Linear Programming | 5.0% (10) | 5.1% (5) | -0.1 pp |
| Ordinary Differential EquationsODE, PDE & Applied Mathematics | 6.0% (12) | 4.1% (4) | +1.9 pp |
| GroupsComplex Analysis, Algebra & Topology | 4.5% (9) | 5.1% (5) | -0.6 pp |
| Partial Differential EquationsODE, PDE & Applied Mathematics | 4.0% (8) | 5.1% (5) | -1.1 pp |
| Rings and FieldsComplex Analysis, Algebra & Topology | 4.5% (9) | 3.1% (3) | +1.4 pp |
| Hypothesis TestingProbability, Statistics & Linear Programming | 4.5% (9) | 3.1% (3) | +1.4 pp |
| Inner Product Spaces and FormsAnalysis & Linear Algebra | 3.5% (7) | 3.1% (3) | +0.4 pp |
| Singularities and ResiduesComplex Analysis, Algebra & Topology | 2.0% (4) | 4.1% (4) | -2.1 pp |
| Calculus of VariationsODE, PDE & Applied Mathematics | 3.0% (6) | 3.1% (3) | -0.1 pp |
| Numerical AnalysisODE, PDE & Applied Mathematics | 3.0% (6) | 3.1% (3) | -0.1 pp |
| Vector Spaces and Linear MapsAnalysis & Linear Algebra | 3.0% (6) | 3.1% (3) | -0.1 pp |
| Sampling and Design of ExperimentsProbability, Statistics & Linear Programming | 2.0% (4) | 3.1% (3) | -1.1 pp |
| Linear Integral EquationsODE, PDE & Applied Mathematics | 2.0% (4) | 3.1% (3) | -1.1 pp |
| IntegrationAnalysis & Linear Algebra | 2.0% (4) | 3.1% (3) | -1.1 pp |
| TopologyComplex Analysis, Algebra & Topology | 2.0% (4) | 3.1% (3) | -1.1 pp |
| Sequences and Series of FunctionsAnalysis & Linear Algebra | 3.0% (6) | 2.0% (2) | +1.0 pp |
| Continuity and DifferentiationAnalysis & Linear Algebra | 2.5% (5) | 2.0% (2) | +0.5 pp |
| Analytic FunctionsComplex Analysis, Algebra & Topology | 2.5% (5) | 2.0% (2) | +0.5 pp |
| Cauchy TheoryComplex Analysis, Algebra & Topology | 2.0% (4) | 2.0% (2) | -0.0 pp |
| Functions of Several VariablesAnalysis & Linear Algebra | 2.0% (4) | 2.0% (2) | -0.0 pp |
| Classical MechanicsODE, PDE & Applied Mathematics | 2.0% (4) | 1.0% (1) | +1.0 pp |
| Zeros and MappingsComplex Analysis, Algebra & Topology | 1.5% (3) | 1.0% (1) | +0.5 pp |
| Linear ProgrammingProbability, Statistics & Linear Programming | 1.0% (2) | 1.0% (1) | -0.0 pp |
| Metric SpacesAnalysis & Linear Algebra | 1.0% (2) | 1.0% (1) | -0.0 pp |
| Lebesgue Measure and IntegrationAnalysis & Linear Algebra | 1.0% (2) | 1.0% (1) | -0.0 pp |
| Determinants and Matrix TricksAnalysis & Linear Algebra | 1.5% (3) | 0.0% (0) | +1.5 pp |
25 of 31 topics moved by less than 1.5 percentage points and are greyed out — at four to thirteen questions a topic, a swing of one or two questions is noise, not a signal.