[SciPy-dev] Missing functions --> Matrix functions, generalized eigenvalue problem, iterative solvers, CWT (Continuos wavelet transform)
nwagner at mecha.uni-stuttgart.de
Wed Feb 27 11:44:25 CST 2002
The current output of
>>> help (linalg)
Linear algebra routines.
Solving Linear Systems:
inv --- Find the inverse of a square matrix
solve --- Solve a linear system of equations
det --- determinant of a matrix
pinv --- Moore-Penrose pseudo inverse (using least-squares)
pinv2 --- Moore-Penrose pseudo inverse (using SVD)
lstsq --- Least-squares solve
lu --- LU decomposition
cholesky --- Cholesky factorization
qr --- QR factorization
schur --- Schur decomposition
rsf2csf --- Real to complex schur form.
norm --- vector and matrix norm
eig --- eigenvectors and eigenvalues
eigvals --- only eigenvalues
svd --- singular value decomposition
expm --- exponential (using Pade approximation)
cosm --- cosine
sinm --- sine
tanm --- tangent
coshm --- hyperbolic cosine
sinhm --- hyperbolic sine
tanhm --- hyperbolic tangent
funm --- arbitrary function
Is there any progress in implementing the matrix logarithm logm ?
Has anyone written some functions concerning the generalized eigenvalue
(or even more general polynomial eigenvalue problems), that
A x = \lambda B x
(\lambda^n A_n + \dots + \lambda A_1 + A_0) x = 0
Are there any iterative solvers (CG, GMRES, ...) ?
I am also looking for discrete and continuous wavelet transforms.
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