I'm comparing the eigenvalues computed by np.eig(np.dot(A.T, A))**2 and np.eig(A). I found some values are the same but some are not. Can anybody tell me why would this happen?
different eigenvalues from np.eig and np.svd
148 Views Asked by aldin At
1
There are 1 best solutions below
Related Questions in PYTHON
- How to store a date/time in sqlite (or something similar to a date)
- Instagrapi recently showing HTTPError and UnknownError
- How to Retrieve Data from an MySQL Database and Display it in a GUI?
- How to create a regular expression to partition a string that terminates in either ": 45" or ",", without the ": "
- Python Geopandas unable to convert latitude longitude to points
- Influence of Unused FFN on Model Accuracy in PyTorch
- Seeking Python Libraries for Removing Extraneous Characters and Spaces in Text
- Writes to child subprocess.Popen.stdin don't work from within process group?
- Conda has two different python binarys (python and python3) with the same version for a single environment. Why?
- Problem with add new attribute in table with BOTO3 on python
- Can't install packages in python conda environment
- Setting diagonal of a matrix to zero
- List of numbers converted to list of strings to iterate over it. But receiving TypeError messages
- Basic Python Question: Shortening If Statements
- Python and regex, can't understand why some words are left out of the match
Related Questions in NUMPY
- Why numpy.vectorize calls vectorized function more times than elements in the vector?
- Producing filtered random samples which can be replicated using the same seed
- Numpy array methods are faster than numpy functions?
- When I create a series of spectrograms from a long audio file, the colour intesities vary noticably
- How do I fix a NumPy ValueError for an inhomogeneous array shape?
- How should I troubleshoot "RuntimeWarning: invalid value encountered in arccos" in NumPy?
- Unravel by multi-index/group
- Calculating IRR Using Numpy
- Integrating with an array of upper limits without sacrificing time efficiency
- Why doesn't this code work? - Backpropagation algorithm
- How to remove integers from a mixed numpy array containing sub-arrays and integers?
- How to transfer object dataframe in sklearn.ensemble methods
- Rust cannot borrow as mutable
- Why does the following code detect this matrix as a non-singular matrix?
- How to detect the exact boundary of a Sudoku using OpenCV when there are multiple external boundaries?
Related Questions in LINEAR-ALGEBRA
- Bound for product of matrices
- How to get scaling from transformation matrix
- Mahalanobis distance computation in Python
- Iterative Matrix-Vector Product Eigensolvers in Python
- How to Implement Back Substitution for Solving Linear Systems in Python?
- How to get integer answers while solving a chemical equation using Numpy
- is numpy representation a column vector?
- what is the direct method of finding nth power value of matrix say A is 2x2 matrix with say 2 2 3 4 values...now i want [A] ^n
- Move the points in the graph linearly when a point is moved up/down and edge values should be fixed in Javascript
- chol(x,pivot=TRUE) does not have attribute pivot in R
- How to tell when calculating an Intercept Point between two moving objects, when it will never intercept?
- Why do I get back different eigenvectors that I put in?
- Trying to use scipy to solve system of linear equations but having trouble
- Extrinsic camera matrix if translation performs before rotation
- Ensure trivial solution is found to matrix equation
Related Questions in SVD
- Matrix reconstruction by SVD in tensorflow
- Is polar decomposition commutative for diagonal matrices?
- Finding a polar decomposition of a matrix
- Applying Low rank approximation to learnable parameters
- SVDF layer implementation compatible with TFLite's SVDF operator
- K-rank Approximation for Image Compression Using SVD (How is Storage Size Affected?)
- Maple MTM:svd failed to converge
- I implemented an SVD, but sometimes it is not possible to restore the original matrix
- The same SVD for points with different precisions got completely different transformation matrix
- How do I keep the order of vectors after symmetric orthogonalization with Scipy?
- Python manual SVD only working for some matrices - how to stabilize it?
- truncated (partial) SVD in RcppArmadillo
- Why don't signular values of SciPy's `linalg.svd` and `linalg.lstsq` match?
- Highly wrong K matrix with DLT Camera Calibration
- SVD Decomposition for linear equation solving
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
There is no mathematical reason to expect that the eigenvalues of A should be equal to the squares of the eigenvalues of (A.T * A). For example, the eigenvalues of A might be complex, whereas the eigenvalues of A.T * A are guaranteed to be real because A.T * A is a symmetric matrix.