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A field says which part of the subject an essay sits in and a series follows one idea in depth. This is the third axis: the named objects themselves, and every essay that touches each one.
There are 659 named objects here, and 471 of them are named by more than one essay. Those have a page of their own. The rest link straight to the single essay that names them — a page whose whole content is one card would say nothing the essay itself does not.
- A norm 1 essay
- A-priori bound 5 essays
- Active set 5 essays
- Adaptive interpolation 2 essays
- Adaptivity 1 essay
- ADI iteration 3 essays
- Adjacency matrix 1 essay
- Admissibility 17 essays
- Admissible estimate 2 essays
- Algebraic connectivity 4 essays
- Algebraic multigrid 5 essays
- Algorithm selection 4 essays
- All reduce 3 essays
- Alternating least-squares 11 essays
- Anisotropy 12 essays
- Approximation before linearisation 7 essays
- Argument principle 2 essays
- Arithmetic cost 4 essays
- Arnoldi 5 essays
- Arnoldi iteration 3 essays
- Arrowhead matrix 2 essays
- Artificial diffusion 6 essays
- Associativity 2 essays
- Asymptotic analysis 14 essays
- Augmented lagrangian 1 essay
- Average-case behaviour 2 essays
- Averaging kernel 1 essay
- Back-substitution 1 essay
- Backward error 71 essays
- Backward stability 15 essays
- Balanced truncation 8 essays
- Bandwidth 1 essay
- Barrier parameter 5 essays
- Barycentric form 1 essay
- Basis 2 essays
- Basis choice 2 essays
- Beam search 3 essays
- bfloat16 3 essays
- Bias variance 2 essays
- Bidiagonal matrix 3 essays
- Binary32 1 essay
- Biorthogonality 1 essay
- Bipartite 2 essays
- Bisection 4 essays
- Bit length 9 essays
- Bitwise reproducibility 12 essays
- Black box construction 2 essays
- Block floating-point 2 essays
- Block jacobi 1 essay
- Block methods 8 essays
- Block preconditioner 4 essays
- Block transfer 1 essay
- Blocked algorithm 7 essays
- Blocking 2 essays
- Border-rank 9 essays
- Bound tightness 1 essay
- Boundary layer 5 essays
- Branch and bound 1 essay
- Branch point 4 essays
- Broadcast 1 essay
- Bulge chasing 1 essay
- Bunch–Kaufman 4 essays
- Cache 2 essays
- Cache oblivious 3 essays
- Cancellation 12 essays
- Capacitance matrix 5 essays
- Catastrophic cancellation 14 essays
- Cayley transform 1 essay
- Centrality 2 essays
- Certificate 17 essays
- Cgls 1 essay
- Characteristic polynomial 3 essays
- Chebyshev basis 3 essays
- Cheeger inequality 3 essays
- Chinese remainder theorem 3 essays
- Cholesky 14 essays
- Cholesky factorisation 17 essays
- Cholesky QR 3 essays
- Chord method 1 essay
- Circulant matrix 9 essays
- Circulant preconditioner 11 essays
- Closest vector 1 essay
- Cluster tree 10 essays
- Clustered spectrum 8 essays
- Coarse fine splitting 3 essays
- Coarse grid correction 1 essay
- Coefficient norms 1 essay
- Collatz wielandt 2 essays
- Column pivoting 5 essays
- Combinatorial optimum 1 essay
- Combinatorial preconditioning 2 essays
- Combinatorial search 2 essays
- Communication 1 essay
- Communication avoiding 3 essays
- Communication lower bound 2 essays
- Companion form 5 essays
- Compensated summation 1 essay
- Complete pivoting 6 essays
- Complex arithmetic 3 essays
- Complex conjugate pair 1 essay
- Complex eigenvalues 1 essay
- Componentwise condition number 6 essays
- Comrade matrix 1 essay
- Condition number 138 essays
- Condition squaring 13 essays
- Condition-estimation 5 essays
- Conditioning 5 essays
- Conductance 6 essays
- Conjugate gradients 45 essays
- Connected components 2 essays
- Constrained minimisation 8 essays
- Constraint preconditioner 1 essay
- Contour eigensolver 3 essays
- Contour integral 6 essays
- Contraction factor 2 essays
- Contraction order 7 essays
- Convection diffusion 12 essays
- Convergence factor 1 essay
- Convergence order 1 essay
- Convergence rate 14 essays
- Correlated noise 1 essay
- Cospectral graphs 2 essays
- Counterexample 9 essays
- CP decomposition 10 essays
- Cramers rule 3 essays
- Critical path 2 essays
- Cross-validation 1 essay
- Crosswind diffusion 1 essay
- Curse of dimensionality 7 essays
- Dangling node 2 essays
- Data movement 9 essays
- Data-driven realisation 2 essays
- Davis kahan 2 essays
- Deconvolution 13 essays
- Defective matrix 3 essays
- Definiteness test 2 essays
- Deflation 11 essays
- Degeneracy 4 essays
- Degree sequence 2 essays
- Departure from normality 1 essay
- Descriptor system 4 essays
- Determinant 24 essays
- Diagonal dominance 3 essays
- Diagonal scaling 1 essay
- Dimension reduction 1 essay
- Directed graph 2 essays
- Directed rounding 5 essays
- Discrepancy principle 16 essays
- Discrete fourier transform 4 essays
- Discrete laplacian 5 essays
- Discrete maximum principle 1 essay
- Discretisation 12 essays
- Discretisation error 4 essays
- Double root 2 essays
- Drop tolerance 2 essays
- Dynamic range 6 essays
- Eckart–Young 13 essays
- Effective dimension 7 essays
- Effective resistance 3 essays
- Eigenvalue 3 essays
- Eigenvalue at infinity 1 essay
- Eigenvalue bracket 1 essay
- Eigenvalue condition number 3 essays
- Eigenvalue gap 4 essays
- Eigenvalue sensitivity 1 essay
- Eigenvalues 8 essays
- Eigenvector 1 essay
- Eigenvector conditioning 3 essays
- Eigenvectors 2 essays
- Elimination graph 4 essays
- Elimination order 6 essays
- Elimination tree 5 essays
- Energy minimisation 1 essay
- Equality constrained least-squares 6 essays
- Equilibration 9 essays
- Equioscillation 2 essays
- Error accumulation 15 essays
- Error-free transformation 2 essays
- Errors-in-variables 2 essays
- Exact accumulation 4 essays
- Exact arithmetic 26 essays
- Exact ground truth 82 essays
- Exact inverse 4 essays
- Existence and uniqueness 2 essays
- Exponent range 4 essays
- Expression contraction 3 essays
- Extrapolation 4 essays
- Factorisation 2 essays
- Fast algorithm 1 essay
- Fast fourier transform 3 essays
- Fiedler vector 3 essays
- Fill 1 essay
- Fill-in 20 essays
- Fill-reducing ordering 12 essays
- Filter factors 27 essays
- Finite termination 4 essays
- Finite-difference 1 essay
- Fitted exponent 1 essay
- Five-point stencil 2 essays
- Fixed point 1 essay
- Fixed-point iteration 2 essays
- Floating-point 4 essays
- Flop count 60 essays
- Flush-to-zero 1 essay
- Forcing term 5 essays
- Formatted arithmetic 3 essays
- Forward error 37 essays
- Foster theorem 2 essays
- Fourier modes 6 essays
- Fp16 1 essay
- Fp8 3 essays
- Fraction-free elimination 7 essays
- Francis's double shift 1 essay
- Frobenius norm 8 essays
- Fused multiply-add 3 essays
- Galerkin coarse operator 6 essays
- Galerkin operator 1 essay
- Galerkin projection 4 essays
- Gauss–Seidel 1 essay
- Gaussian elimination 28 essays
- General form regularisation 2 essays
- Generalised cross-validation 10 essays
- Generalised eigenvalue 1 essay
- Generalised eigenvalue problem 4 essays
- Givens rotation 3 essays
- GMRES 5 essays
- Golden-ratio 1 essay
- Golub kahan bidiagonalisation 3 essays
- Graded matrix 3 essays
- Gradual underflow 1 essay
- Gram matrix 9 essays
- Gram–Schmidt 11 essays
- Gramian 7 essays
- Graph automorphism 2 essays
- Graph elimination 2 essays
- Graph invariant 2 essays
- Graph laplacian 14 essays
- Greedy algorithm 1 essay
- Greens function 2 essays
- Grid alignment 3 essays
- Grid complexity 2 essays
- Ground truth 1 essay
- Grounding 4 essays
- Growth factor 24 essays
- H2 norm 1 essay
- Hadamard bound 8 essays
- Half-precision 8 essays
- Hankel singular values 5 essays
- Hermite interpolation 2 essays
- Hermite normal form 1 essay
- Hessenberg form 2 essays
- Heuristic 6 essays
- Hierarchical matrix 22 essays
- Higher-order SVD 5 essays
- Hilbert matrix 12 essays
- Householder 3 essays
- Householder reflection 19 essays
- Hutchinson's estimator 5 essays
- Hybrid regularisation 2 essays
- Hyperbolic quadratic 2 essays
- Hyperbolic rotation 1 essay
- Hyperdeterminant 2 essays
- hypot 2 essays
- IEEE 754 5 essays
- Ill-posed problem 26 essays
- Ill-posedness 1 essay
- Importance sampling 2 essays
- Incomplete cholesky 2 essays
- Incomplete factorisation 6 essays
- Indefinite matrix 10 essays
- Inertia 12 essays
- Inertia correction 3 essays
- Inexact newton 5 essays
- Infinite eigenvalue 4 essays
- Influence matrix 4 essays
- Integer overflow 1 essay
- Integer relation 3 essays
- Interior-point method 6 essays
- Intermediate expression swell 1 essay
- Interpolation 2 essays
- Interpolation weights 2 essays
- Interval arithmetic 6 essays
- Invariance 4 essays
- Invariant factors 2 essays
- Invariant subspace 10 essays
- Inverse iteration 1 essay
- Irreducibility 1 essay
- Iterative refinement 17 essays
- Iterative regularisation 15 essays
- Jacobi iteration 6 essays
- Jacobi's eigenvalue method 12 essays
- Jacobian 2 essays
- Johnson–Lindenstrauss 1 essay
- Jordan form 2 essays
- Kahan summation 4 essays
- Kahan's matrix 2 essays
- Kernel matrix 8 essays
- Khatri–Rao product 3 essays
- Krawczyk operator 2 essays
- Kronecker product 6 essays
- Kronecker sum 6 essays
- Kruskal's condition 1 essay
- Krylov subspace 39 essays
- L-curve 8 essays
- Lagrange multiplier 2 essays
- Lambert w 1 essay
- Lanczos 3 essays
- Lanczos algorithm 4 essays
- Landweber iteration 3 essays
- Largest gap rule 1 essay
- Latency 2 essays
- Lattice 6 essays
- Lattice reduction 6 essays
- Läuchli's matrix 1 essay
- LDLᵀ factorisation 12 essays
- Least squares by QR 1 essay
- Least-squares 14 essays
- Left eigenvector 1 essay
- Leverage 11 essays
- Levinson recursion 2 essays
- Line relaxation 2 essays
- Linear convergence 1 essay
- Linearisation 16 essays
- LLL algorithm 1 essay
- Loewner matrix 3 essays
- Look-ahead 1 essay
- Loop order 3 essays
- Loss of orthogonality 11 essays
- Low-rank approximation 39 essays
- Low-rank update 11 essays
- Lower bound 7 essays
- Lsqr 3 essays
- LU factorisation 14 essays
- Lyapunov equation 10 essays
- M-matrix 7 essays
- Machine epsilon 2 essays
- Manufactured solution 3 essays
- Markov parameter 2 essays
- Markowitz cost 4 essays
- Mass matrix 2 essays
- Matrix equation 3 essays
- Matrix exponential 4 essays
- Matrix function 4 essays
- Matrix inverse 4 essays
- Matrix multiplication 3 essays
- Matrix norm 5 essays
- Matrix pencil 5 essays
- Matrix polynomial 10 essays
- Matrix structure 2 essays
- Matrix tree theorem 2 essays
- Matrix-free 14 essays
- McMillan degree 6 essays
- Memory hierarchy 12 essays
- Method of weighting 5 essays
- Metric 1 essay
- Minimal polynomial 2 essays
- Minimum degree 8 essays
- Minor 4 essays
- MINRES 6 essays
- Mixed-precision 3 essays
- Mixing time 2 essays
- Model problem 10 essays
- Modelling assumption 1 essay
- Modified Gram–Schmidt 4 essays
- Modular arithmetic 4 essays
- Moment 3 essays
- Moment matching 5 essays
- Multigrid 1 essay
- Multilinear rank 5 essays
- Multiplicity 4 essays
- Multipliers 4 essays
- Near-null space 4 essays
- Negative curvature 4 essays
- Nested dissection 7 essays
- Newton iteration 18 essays
- Nodal exactness 1 essay
- Noise floor 9 essays
- Noise level 1 essay
- Non-normal matrices 2 essays
- Non-normality 14 essays
- Non-symmetric operator 1 essay
- Nonlinear eigenvalue problem 9 essays
- Normal equations 19 essays
- Normalised laplacian 5 essays
- Null-space 10 essays
- Null-space basis 4 essays
- Null-space method 7 essays
- Numerical range 4 essays
- Numerical rank 33 essays
- Off-diagonal rank 19 essays
- Operator complexity 4 essays
- Optimal-complexity 6 essays
- Optimality condition 1 essay
- Oracle 6 essays
- Ordering 1 essay
- Orthogonal invariant 4 essays
- Orthogonal projection 12 essays
- Orthogonal similarity 1 essay
- Orthogonality 40 essays
- Orthogonality defect 5 essays
- Orthogonality loss 4 essays
- Orthonormal basis 1 essay
- Outliers 2 essays
- Output size 1 essay
- Overdamping 2 essays
- Overflow 7 essays
- Oversampling 7 essays
- Padé approximant 1 essay
- Pagerank 4 essays
- Pairwise summation 2 essays
- Palindromic quadratic 2 essays
- Parameter choice 19 essays
- Parametrisation 1 essay
- Partial pivoting 18 essays
- Peclet number 7 essays
- Periodicity 1 essay
- Permutation 18 essays
- Perron frobenius 3 essays
- Perturbation 12 essays
- Perturbation theory 1 essay
- Petrov–Galerkin 6 essays
- Picard condition 5 essays
- Pivoting 4 essays
- Plane rotation 1 essay
- Polar decomposition 6 essays
- Polynomial eigenvalue 1 essay
- Positive definite 5 essays
- Power iteration 3 essays
- Power method 2 essays
- Pre-rounded summation 3 essays
- Preconditioning 35 essays
- Prewhitening 1 essay
- Principal angles 2 essays
- Probabilistic bounds 14 essays
- Probability bound 1 essay
- Projected problem 2 essays
- Projective line 1 essay
- Prolongation 4 essays
- Proportional damping 1 essay
- Pruning 1 essay
- Pseudoinverse 2 essays
- Pseudospectrum 2 essays
- QR factorisation 20 essays
- Quadratic convergence 5 essays
- Quadratic eigenvalue problem 14 essays
- Quadratic form 6 essays
- Quadrature 9 essays
- Quantisation 2 essays
- Quasi-definite matrix 6 essays
- Quasi-triangular 1 essay
- Random probe 6 essays
- Random projection 9 essays
- Random walk 8 essays
- Randomised 1 essay
- Randomised SVD 12 essays
- Range finder 6 essays
- Range-space method 2 essays
- Rank 10 essays
- Rank deficiency 3 essays
- Rank is a decision 6 essays
- Rank-revealing QR 3 essays
- Ranking 1 essay
- Rational approximation 7 essays
- Rational arithmetic 3 essays
- Rational krylov 7 essays
- Rational reconstruction 3 essays
- Rayleigh quotient 1 essay
- Reciprocal pair 2 essays
- Recompression 5 essays
- Recursive factorisation 3 essays
- Recursive least-squares 3 essays
- Reduced hessian 12 essays
- Reduced stability 5 essays
- Reduction order 14 essays
- Reduction tree 4 essays
- Reflection 2 essays
- Regression tolerance 2 essays
- Regularisation 23 essays
- Relative accuracy 4 essays
- Relative error 7 essays
- Relaxation 2 essays
- Reorthogonalisation 13 essays
- Repeated eigenvalue 1 essay
- Replication 1 essay
- Representable numbers 1 essay
- Reproducible summation 3 essays
- Residual 58 essays
- Residual bound 2 essays
- Residual replacement 2 essays
- Resolution matrix 2 essays
- Resolvent 2 essays
- Restarting 3 essays
- Restriction 3 essays
- Ritz values 12 essays
- Rook pivoting 3 essays
- Root finding 1 essay
- Rotated anisotropy 4 essays
- Rotation 4 essays
- Rounding 4 essays
- Rounding modes 2 essays
- Row ordering 3 essays
- Row scaling 4 essays
- Run-to-run variation 16 essays
- Saddle-point systems 30 essays
- Saturation 1 essay
- Scaled norm 2 essays
- Scaling 11 essays
- Schur complement 10 essays
- Schur form 3 essays
- Second-order Arnoldi 3 essays
- Seeded generator 7 essays
- Semi-coarsening 4 essays
- Semi-convergence 14 essays
- Seminormal equations 2 essays
- Sensitivity 5 essays
- Separability 7 essays
- Separable expansion 3 essays
- Separation ratio 3 essays
- Separator 5 essays
- Sequence of solves 1 essay
- Shared exponent 2 essays
- Sherman morrison woodbury 3 essays
- Shift selection 2 essays
- Shifts 4 essays
- Short recurrence 2 essays
- Sign choice 2 essays
- Signal to noise 1 essay
- Significand 9 essays
- Silent failure 6 essays
- Similarity transformation 5 essays
- Singular pencil 1 essay
- Singular value decomposition 13 essays
- Singular values 34 essays
- Singular vectors 2 essays
- Skeel condition number 1 essay
- Sketch-and-precondition 2 essays
- Sketch-and-solve 2 essays
- Sketching 10 essays
- Smith normal form 2 essays
- Smoothed aggregation 2 essays
- Smoothing factor 7 essays
- Source condition 1 essay
- Spanning tree 5 essays
- Sparse LU 4 essays
- Sparse pivoting 5 essays
- Sparsity 20 essays
- Sparsity pattern 1 essay
- Spectral clustering 1 essay
- Spectral decay 15 essays
- Spectral decomposition 1 essay
- Spectral gap 1 essay
- Spectral partition 3 essays
- Spectral partitioning 1 essay
- Spectral radius 3 essays
- Spectral slicing 1 essay
- Spectral sparsification 2 essays
- Spline 1 essay
- Spurious spectrum 2 essays
- Square root method 1 essay
- Stable formulation 1 essay
- Stagnation 1 essay
- Star mesh transform 2 essays
- Static allocation 1 essay
- Static pivoting 2 essays
- Stationary distribution 5 essays
- Sterbenz's lemma 1 essay
- Stochastic rounding 1 essay
- Stopping criterion 39 essays
- Storage 5 essays
- Streamline diffusion 4 essays
- Strength of connection 6 essays
- Stretch 2 essays
- Structural bound 1 essay
- Structure-preserving 2 essays
- Structured backward error 5 essays
- Structured perturbation 4 essays
- Sturm sequence 2 essays
- Subdivision 2 essays
- Subnormal 1 essay
- Subnormal numbers 2 essays
- Subnormals 1 essay
- Subspace embedding 4 essays
- Successive over-relaxation 1 essay
- Summation 5 essays
- Summation condition number 6 essays
- Summation error 1 essay
- Support points 1 essay
- SVD 1 essay
- Swamp 8 essays
- Sweep cut 2 essays
- Sylvesters identity 4 essays
- Symbol 8 essays
- Symbolic factorisation 14 essays
- Symbolic phase 3 essays
- Symmetric eigenproblem 2 essays
- Symmetric indefinite 4 essays
- Symmetric permutation 2 essays
- Symmetry 3 essays
- Synchronisation 3 essays
- Szego theorem 1 essay
- Tall-skinny QR 4 essays
- Target set 2 essays
- Teleportation 3 essays
- Tensor network 7 essays
- Tensor rank 10 essays
- Tensor train 7 essays
- The implicit Q theorem 1 essay
- The Kreiss constant 1 essay
- The QR algorithm 2 essays
- The real Schur form 2 essays
- The Rigal–Gaches theorem 1 essay
- The ulp 2 essays
- The V-cycle 6 essays
- The Vandermonde matrix 2 essays
- Thick restarting 1 essay
- Three-term recurrence 2 essays
- Threshold pivoting 7 essays
- Tikhonov regularisation 28 essays
- Toeplitz matrix 9 essays
- Tolerance 21 essays
- Total least-squares 2 essays
- Total variation distance 1 essay
- Trace estimation 8 essays
- Transfer function 12 essays
- Transient growth 2 essays
- Triangular solve 4 essays
- Tridiagonal 1 essay
- Tridiagonal solve 1 essay
- Tropical roots 2 essays
- Truncated SVD 23 essays
- Truncation 11 essays
- Trust-region 2 essays
- Tucker decomposition 5 essays
- Twisted circulant 1 essay
- Two-grid correction 1 essay
- Typical rank 1 essay
- Underflow 1 essay
- Unfolding 9 essays
- Unimodular 5 essays
- Uniqueness 4 essays
- Unit roundoff 42 essays
- Unlucky prime 2 essays
- Upwind differencing 5 essays
- Upwinding 3 essays
- Verified computation 1 essay
- Verified computing 3 essays
- Warm start 12 essays
- Weak admissibility 4 essays
- Weighted jacobi 5 essays
- Weighted least-squares 1 essay
- Weyl's inequality 2 essays
- Wilkinson polynomial 1 essay
- Wilkinson's matrix 5 essays
- Woodbury identity 5 essays
- Work units 1 essay
- Working precision 1 essay
- Worst-case analysis 11 essays
- Wrapping effect 2 essays
- Zolotarev number 4 essays