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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 667 named objects here, and 507 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 9 essays
- Active set 7 essays
- Adaptive interpolation 2 essays
- Adaptivity 1 essay
- ADI iteration 3 essays
- Adjacency matrix 2 essays
- Admissibility 22 essays
- Admissible estimate 2 essays
- Algebraic connectivity 4 essays
- Algebraic multigrid 5 essays
- Algorithm selection 4 essays
- All reduce 3 essays
- Alternating least squares 16 essays
- Anisotropy 12 essays
- Approximation before linearisation 7 essays
- Argument principle 2 essays
- Arithmetic cost 8 essays
- Arnoldi 5 essays
- Arnoldi iteration 3 essays
- Arrowhead matrix 2 essays
- Artificial diffusion 6 essays
- Associativity 2 essays
- Asymptotic analysis 19 essays
- Augmented lagrangian 2 essays
- Average-case behaviour 2 essays
- Averaging kernel 1 essay
- Back-substitution 1 essay
- Backward error 84 essays
- Backward stability 16 essays
- Balanced truncation 11 essays
- Bandwidth 1 essay
- Barrier parameter 5 essays
- Barycentric form 1 essay
- Baseline 1 essay
- Basis 2 essays
- Basis choice 2 essays
- Beam search 5 essays
- bfloat16 3 essays
- Bias variance 4 essays
- Bidiagonal matrix 4 essays
- Binary32 1 essay
- Biorthogonality 1 essay
- Bipartite 2 essays
- Bisection 4 essays
- Bit length 12 essays
- Bitwise reproducibility 12 essays
- Black box construction 2 essays
- Block floating point 2 essays
- Block jacobi 1 essay
- Block methods 11 essays
- Block preconditioner 7 essays
- Block transfer 1 essay
- Blocked algorithm 12 essays
- Blocking 2 essays
- Border-rank 13 essays
- Bound tightness 1 essay
- Boundary layer 5 essays
- Boundary-value problem 1 essay
- Branch and bound 1 essay
- Branch point 4 essays
- Broadcast 1 essay
- Bulge chasing 1 essay
- Bunch–Kaufman 13 essays
- Cache 3 essays
- Cache-oblivious 3 essays
- Cancellation 12 essays
- Capacitance matrix 6 essays
- Catastrophic cancellation 17 essays
- Cayley transform 1 essay
- Centrality 2 essays
- Certificate 24 essays
- Cgls 1 essay
- Characteristic polynomial 6 essays
- Chebyshev basis 5 essays
- Cheeger inequality 3 essays
- Chinese remainder theorem 3 essays
- Cholesky 16 essays
- Cholesky factorisation 20 essays
- Cholesky QR 3 essays
- Chord method 1 essay
- Circulant matrix 10 essays
- Circulant preconditioner 16 essays
- Closest vector 1 essay
- Cluster tree 12 essays
- Clustered spectrum 14 essays
- Coarse fine splitting 3 essays
- Coarse grid correction 1 essay
- Coefficient growth 1 essay
- Coefficient norms 1 essay
- Collatz wielandt 2 essays
- Column pivoting 5 essays
- Combinatorial optimum 1 essay
- Combinatorial preconditioning 2 essays
- Combinatorial search 5 essays
- Communication 1 essay
- Communication lower bound 3 essays
- Communication-avoiding 3 essays
- Companion form 11 essays
- Compensated summation 1 essay
- Complete pivoting 7 essays
- Complex arithmetic 3 essays
- Complex conjugate pair 1 essay
- Complex eigenvalues 1 essay
- Componentwise condition number 8 essays
- Comrade matrix 1 essay
- Condition number 158 essays
- Condition squaring 17 essays
- Condition-estimation 7 essays
- Conditioning 6 essays
- Conductance 6 essays
- Conjugate gradients 67 essays
- Connected components 2 essays
- Constrained minimisation 8 essays
- Constraint preconditioner 1 essay
- Contour eigensolver 6 essays
- Contour integral 9 essays
- Contraction factor 2 essays
- Contraction order 9 essays
- Convection diffusion 14 essays
- Convergence factor 1 essay
- Convergence order 1 essay
- Convergence rate 19 essays
- Correlated noise 1 essay
- Cospectral graphs 7 essays
- Counterexample 13 essays
- CP decomposition 15 essays
- Cramers rule 3 essays
- Critical path 5 essays
- Cross-validation 6 essays
- Crosswind diffusion 1 essay
- Curse of dimensionality 7 essays
- Dangling node 2 essays
- Data movement 12 essays
- Data-driven realisation 4 essays
- Davis kahan 2 essays
- Deconvolution 18 essays
- Defective matrix 5 essays
- Definite pencil 1 essay
- Definiteness test 2 essays
- Deflation 11 essays
- Degeneracy 9 essays
- Degree sequence 2 essays
- Departure from normality 1 essay
- Descriptor system 4 essays
- Determinant 29 essays
- Diagonal dominance 3 essays
- Diagonal scaling 1 essay
- Dimension reduction 1 essay
- Directed graph 2 essays
- Directed rounding 6 essays
- Discrepancy principle 25 essays
- Discrete fourier transform 4 essays
- Discrete laplacian 5 essays
- Discrete maximum principle 1 essay
- Discretisation 15 essays
- Discretisation error 4 essays
- Double root 4 essays
- Drop tolerance 2 essays
- Dynamic range 9 essays
- Eckart–Young 13 essays
- Effective dimension 9 essays
- Effective resistance 3 essays
- Eigenvalue 3 essays
- Eigenvalue at infinity 1 essay
- Eigenvalue bracket 1 essay
- Eigenvalue condition number 6 essays
- Eigenvalue gap 4 essays
- Eigenvalue sensitivity 1 essay
- Eigenvalues 9 essays
- Eigenvector 1 essay
- Eigenvector conditioning 3 essays
- Eigenvectors 2 essays
- Elimination graph 4 essays
- Elimination order 9 essays
- Elimination tree 8 essays
- Energy minimisation 1 essay
- Equality-constrained least squares 8 essays
- Equilibration 9 essays
- Equioscillation 2 essays
- Error accumulation 16 essays
- Error estimate 1 essay
- Error-free transformation 2 essays
- Errors-in-variables 4 essays
- Exact accumulation 4 essays
- Exact arithmetic 34 essays
- Exact ground truth 106 essays
- Exact inverse 4 essays
- Existence and uniqueness 2 essays
- Exponent range 9 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 30 essays
- Fill-reducing ordering 16 essays
- Filter factors 34 essays
- Finite difference 1 essay
- Finite termination 5 essays
- Fitted exponent 1 essay
- Five-point stencil 2 essays
- Fixed point 1 essay
- Fixed-point iteration 4 essays
- Floating point 5 essays
- Flop count 67 essays
- Flush-to-zero 3 essays
- Forcing term 8 essays
- Formatted arithmetic 3 essays
- Forward error 50 essays
- Foster theorem 2 essays
- Fourier modes 7 essays
- Fp16 1 essay
- Fp8 7 essays
- Fraction-free elimination 9 essays
- Francis's double shift 2 essays
- Frobenius norm 10 essays
- Fused multiply-add 3 essays
- Galerkin coarse operator 6 essays
- Galerkin operator 1 essay
- Galerkin projection 6 essays
- Gauss–Seidel 1 essay
- Gaussian elimination 32 essays
- General form regularisation 5 essays
- Generalised cross-validation 21 essays
- Generalised eigenvalue 1 essay
- Generalised eigenvalue problem 7 essays
- Givens rotation 3 essays
- GMRES 7 essays
- Golden ratio 1 essay
- Golub kahan bidiagonalisation 4 essays
- Graded matrix 3 essays
- Gradual underflow 3 essays
- Gram matrix 9 essays
- Gram–Schmidt 12 essays
- Gramian 9 essays
- Graph automorphism 2 essays
- Graph elimination 2 essays
- Graph invariant 7 essays
- Graph laplacian 21 essays
- Greedy algorithm 5 essays
- Greens function 2 essays
- Grid alignment 3 essays
- Grid complexity 2 essays
- Ground truth 1 essay
- Grounding 4 essays
- Growth factor 31 essays
- H2 norm 1 essay
- Hadamard bound 8 essays
- Half-precision 8 essays
- Hankel singular values 8 essays
- Hermite interpolation 2 essays
- Hermite normal form 3 essays
- Hessenberg form 2 essays
- Heuristic 10 essays
- Hierarchical matrix 29 essays
- Higher-order SVD 5 essays
- Hilbert matrix 12 essays
- Hinf norm 3 essays
- Householder 4 essays
- Householder reflection 25 essays
- Hutchinson's estimator 10 essays
- Hybrid regularisation 2 essays
- Hyperbolic quadratic 4 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 12 essays
- Inertia 17 essays
- Inertia correction 3 essays
- Inexact newton 10 essays
- Infinite eigenvalue 4 essays
- Influence matrix 6 essays
- Integer overflow 1 essay
- Integer relation 3 essays
- Interior-point method 8 essays
- Intermediate expression swell 1 essay
- Interpolation 5 essays
- Interpolation weights 2 essays
- Interval arithmetic 6 essays
- Invariance 4 essays
- Invariant factors 10 essays
- Invariant subspace 10 essays
- Inverse iteration 7 essays
- Irreducibility 1 essay
- Iterative refinement 24 essays
- Iterative regularisation 20 essays
- Jacobi iteration 6 essays
- Jacobi's eigenvalue method 12 essays
- Jacobian 4 essays
- Johnson–Lindenstrauss 1 essay
- Jordan form 3 essays
- Kahan summation 5 essays
- Kahan's matrix 2 essays
- Kernel matrix 14 essays
- Khatri–Rao product 3 essays
- Krawczyk operator 2 essays
- Kronecker product 15 essays
- Kronecker sum 6 essays
- Kruskal's condition 3 essays
- Krylov subspace 39 essays
- L-curve 10 essays
- Lagrange multiplier 6 essays
- Lambert w 1 essay
- Lanczos 5 essays
- Lanczos algorithm 7 essays
- Landweber iteration 3 essays
- Largest gap rule 1 essay
- Latency 2 essays
- Lattice 9 essays
- Lattice reduction 7 essays
- Läuchli's matrix 1 essay
- LDLᵀ factorisation 15 essays
- Least squares 28 essays
- Least squares by QR 2 essays
- Left eigenvector 1 essay
- Leverage 19 essays
- Levinson recursion 2 essays
- Line relaxation 2 essays
- Linear convergence 1 essay
- Linearisation 21 essays
- LLL algorithm 1 essay
- Loewner matrix 5 essays
- Look-ahead 1 essay
- Loop order 3 essays
- Loss of orthogonality 15 essays
- Low-rank approximation 44 essays
- Low-rank update 14 essays
- Lower bound 12 essays
- Lsqr 3 essays
- LU factorisation 18 essays
- Lyapunov equation 13 essays
- M-matrix 8 essays
- Machine epsilon 2 essays
- Manufactured solution 3 essays
- Markov parameter 2 essays
- Markowitz cost 4 essays
- Mass matrix 4 essays
- Matrix equation 5 essays
- Matrix exponential 4 essays
- Matrix function 4 essays
- Matrix inverse 4 essays
- Matrix multiplication 3 essays
- Matrix norm 6 essays
- Matrix pencil 9 essays
- Matrix polynomial 14 essays
- Matrix structure 2 essays
- Matrix tree theorem 7 essays
- Matrix-free 17 essays
- McMillan degree 7 essays
- Memory hierarchy 15 essays
- Method of weighting 5 essays
- Metric 1 essay
- Minimal polynomial 3 essays
- Minimum degree 18 essays
- Minor 6 essays
- MINRES 8 essays
- Mixed-precision 10 essays
- Mixing time 3 essays
- Model problem 10 essays
- Modelling assumption 1 essay
- Modified Gram–Schmidt 6 essays
- Modular arithmetic 10 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 7 essays
- Nested dissection 10 essays
- Newton iteration 18 essays
- Nodal exactness 1 essay
- Noise floor 13 essays
- Noise level 5 essays
- Non-normal matrices 2 essays
- Non-normality 19 essays
- Non-symmetric operator 1 essay
- Nonlinear eigenvalue problem 12 essays
- Normal equations 22 essays
- Normalised laplacian 5 essays
- Null space 10 essays
- Null space basis 5 essays
- Null space method 10 essays
- Numerical range 6 essays
- Numerical rank 39 essays
- Off-diagonal rank 26 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 43 essays
- Orthogonality defect 5 essays
- Orthogonality loss 8 essays
- Orthonormal basis 4 essays
- Outliers 2 essays
- Output size 1 essay
- Overdamping 3 essays
- Overflow 10 essays
- Oversampling 7 essays
- Padé approximant 1 essay
- Pagerank 4 essays
- Pairwise summation 3 essays
- Palindromic quadratic 2 essays
- Parameter choice 28 essays
- Parametrisation 1 essay
- Partial pivoting 25 essays
- Peclet number 9 essays
- Periodicity 1 essay
- Permutation 19 essays
- Perron frobenius 5 essays
- Perturbation 13 essays
- Perturbation theory 2 essays
- Petrov–Galerkin 6 essays
- Picard condition 6 essays
- Pivoting 8 essays
- Plane rotation 1 essay
- Polar decomposition 6 essays
- Polynomial eigenvalue 1 essay
- Positive definite 7 essays
- Power iteration 5 essays
- Power method 2 essays
- Pre-rounded summation 3 essays
- Preconditioning 43 essays
- Prewhitening 1 essay
- Principal angles 2 essays
- Probabilistic bounds 22 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 3 essays
- QR factorisation 23 essays
- Quadratic convergence 5 essays
- Quadratic eigenvalue problem 17 essays
- Quadratic form 6 essays
- Quadrature 12 essays
- Quantisation 2 essays
- Quasi-definite matrix 9 essays
- Quasi-triangular 1 essay
- Random probe 12 essays
- Random projection 12 essays
- Random walk 8 essays
- Randomised 1 essay
- Randomised SVD 15 essays
- Range finder 9 essays
- Range-space method 2 essays
- Rank 10 essays
- Rank deficiency 3 essays
- Rank is a decision 8 essays
- Rank-revealing QR 3 essays
- Ranking 1 essay
- Rational approximation 9 essays
- Rational arithmetic 5 essays
- Rational krylov 7 essays
- Rational reconstruction 3 essays
- Rayleigh quotient 5 essays
- Reciprocal pair 2 essays
- Recompression 5 essays
- Recursive factorisation 6 essays
- Recursive least squares 3 essays
- Reduced hessian 15 essays
- Reduced stability 9 essays
- Reduction order 14 essays
- Reduction tree 5 essays
- Reflection 3 essays
- Regression tolerance 2 essays
- Regularisation 32 essays
- Relative accuracy 6 essays
- Relative error 9 essays
- Relaxation 2 essays
- Reorthogonalisation 16 essays
- Repeated eigenvalue 1 essay
- Replication 1 essay
- Representable numbers 1 essay
- Reproducible summation 3 essays
- Residual 71 essays
- Residual bound 2 essays
- Residual replacement 2 essays
- Resolution matrix 2 essays
- Resolvent 2 essays
- Restarting 3 essays
- Restriction 3 essays
- Ritz values 19 essays
- Rook pivoting 8 essays
- Root finding 1 essay
- Rotated anisotropy 4 essays
- Rotation 4 essays
- Rounding 7 essays
- Rounding modes 2 essays
- Row ordering 3 essays
- Row scaling 7 essays
- Run-to-run variation 16 essays
- Runge phenomenon 2 essays
- Saddle-point systems 41 essays
- Saturation 1 essay
- Scaled norm 2 essays
- Scaling 22 essays
- Schur complement 13 essays
- Schur form 4 essays
- Second-order Arnoldi 3 essays
- Seeded generator 9 essays
- Semi-coarsening 4 essays
- Semi-convergence 18 essays
- Seminormal equations 3 essays
- Sensitivity 6 essays
- Separability 12 essays
- Separable expansion 3 essays
- Separation ratio 3 essays
- Separator 8 essays
- Sequence of solves 1 essay
- Shared exponent 3 essays
- Sherman morrison woodbury 3 essays
- Shift selection 5 essays
- Shifts 4 essays
- Short recurrence 2 essays
- Sign choice 2 essays
- Signal-to-noise 1 essay
- Significand 14 essays
- Silent failure 9 essays
- Similarity transformation 7 essays
- Singular pencil 1 essay
- Singular value decomposition 17 essays
- Singular values 39 essays
- Singular vectors 3 essays
- Skeel condition number 2 essays
- Sketch-and-precondition 2 essays
- Sketch-and-solve 2 essays
- Sketching 13 essays
- Smith normal form 10 essays
- Smoothed aggregation 2 essays
- Smoothing factor 7 essays
- Source condition 1 essay
- Spanning-tree 10 essays
- Sparse LU 4 essays
- Sparse pivoting 10 essays
- Sparsity 21 essays
- Sparsity pattern 1 essay
- Spectral clustering 1 essay
- Spectral decay 21 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 2 essays
- Stagnation 4 essays
- Star mesh transform 2 essays
- Static allocation 1 essay
- Static pivoting 2 essays
- Stationary distribution 12 essays
- Sterbenz's lemma 1 essay
- Stochastic rounding 1 essay
- Stopping criterion 58 essays
- Stopping criterion conjugate gradients 1 essay
- Storage 9 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 6 essays
- Sturm sequence 2 essays
- Subdivision 2 essays
- Subnormal 1 essay
- Subnormal numbers 7 essays
- Subnormals 1 essay
- Subspace-embedding 4 essays
- Successive over-relaxation 1 essay
- Summation 7 essays
- Summation condition number 7 essays
- Summation error 1 essay
- Support points 1 essay
- SVD 1 essay
- Swamp 9 essays
- Sweep cut 2 essays
- Sylvesters identity 4 essays
- Symbol 13 essays
- Symbolic factorisation 19 essays
- Symbolic phase 3 essays
- Symmetric eigenproblem 3 essays
- Symmetric indefinite 12 essays
- Symmetric permutation 2 essays
- Symmetry 3 essays
- Synchronisation 3 essays
- Szego theorem 1 essay
- Tall-skinny QR 5 essays
- Target set 2 essays
- Teleportation 3 essays
- Tensor network 9 essays
- Tensor rank 14 essays
- Tensor train 7 essays
- The implicit Q theorem 1 essay
- The Kreiss constant 1 essay
- The QR algorithm 3 essays
- The real Schur form 2 essays
- The Rigal–Gaches theorem 1 essay
- The ulp 3 essays
- The V-cycle 6 essays
- The Vandermonde matrix 2 essays
- Thick restarting 1 essay
- Three-term recurrence 2 essays
- Threshold pivoting 8 essays
- Tikhonov regularisation 39 essays
- Toeplitz matrix 16 essays
- Tolerance 27 essays
- Total least squares 4 essays
- Total variation distance 1 essay
- Trace estimation 12 essays
- Transfer function 17 essays
- Transient growth 2 essays
- Triangular solve 5 essays
- Tridiagonal 4 essays
- Tridiagonal solve 1 essay
- Tropical roots 6 essays
- Truncated SVD 25 essays
- Truncation 11 essays
- Trust-region 2 essays
- Tucker decomposition 5 essays
- Twisted circulant 2 essays
- Two-grid correction 1 essay
- Typical rank 1 essay
- Underflow 1 essay
- Unfolding 9 essays
- Unimodular 7 essays
- Uniqueness 6 essays
- Unit roundoff 53 essays
- Unlucky prime 4 essays
- Upwind differencing 5 essays
- Upwinding 4 essays
- Verified computation 1 essay
- Verified computing 3 essays
- Warm start 13 essays
- Weak admissibility 4 essays
- Weighted jacobi 5 essays
- Weighted least squares 3 essays
- Weyl's inequality 2 essays
- Wilkinson polynomial 3 essays
- Wilkinson's matrix 7 essays
- Woodbury identity 6 essays
- Work units 1 essay
- Working precision 1 essay
- Worst-case analysis 15 essays
- Wrapping effect 2 essays
- Zolotarev number 4 essays