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Matrix subtraction not working as it should

QUESTION FROM: Saim Ehtesham Ali | 2 years ago BY: Saim Ehtesham Ali
Algebra , Mathematics , Wolfram Language
5
REPLIES
3.6K
VIEWS

Is there a way to solve the eigenvalues of a linear operator without giving its matrix form?

QUESTION FROM: Frank Xu | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
5
REPLIES
2.3K
VIEWS

The Complex Architecture of the Vault System of an Early Medieval Church

CONTRIBUTED BY: Enrico Babilio | 2 years ago BY: Enrico Babilio
Staff Picks , Architecture , Computational Humanities , Geometry , ...
5
REPLIES
8.3K
VIEWS

How to get inverse Fourier transform and plot it?

QUESTION FROM: M M | 2 years ago BY: Gianluca Gorni
Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
2.5K
VIEWS

The typeset form in TableForm and MatrixForm outputs

QUESTION FROM: Sinval Santos | 2 years ago BY: Sinval Santos
Mathematics , Wolfram Language
5
REPLIES
2.9K
VIEWS

How to build a set or a region by linear inequalities?

QUESTION FROM: Zhenzhong Gao | 2 years ago BY: Elad Shufan
Geometry , Mathematics , Wolfram Language
5
REPLIES
4.2K
VIEWS

Solving the Queens Puzzle with Graph Theory

CONTRIBUTED BY: Alejandra Ortiz Duran | 2 years ago BY: Zsombor Méder
Staff Picks , Challenges , Computer-Based Maths , ...
5
REPLIES
13.4K
VIEWS

How to get a numerical value of the result returned by Integrate?

QUESTION FROM: Leslaw Bieniasz | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
5
REPLIES
3K
VIEWS

Maze solving at NYC Math Festival

CONTRIBUTED BY: Brad Klee | 2 years ago BY: Robert Nachbar
Staff Picks , Computational Humanities , Game Development , ...
5
REPLIES
7.6K
VIEWS

Using same module multiple times to write single line output

QUESTION FROM: Kundan Kumar | 2 years ago BY: Kundan Kumar
Mathematics , Wolfram Language
5
REPLIES
2.5K
VIEWS

4D polyhedra and their 3D cross-cections

CONTRIBUTED BY: Dugan Hammock | 2 years ago BY: Dugan Hammock
Staff Picks , Discrete Mathematics , Geometry , ...
5
REPLIES
7.8K
VIEWS

Two identical computations give different results?

QUESTION FROM: Leon Fairbanks | 2 years ago BY: Leon Fairbanks
Algebra , Mathematics , Wolfram Language
5
REPLIES
3.3K
VIEWS

A program to create new geometry proof problems

CONTRIBUTED BY: Philip Todd | 2 years ago BY: Ahmed Elbanna
Staff Picks , Computer-Based Maths , Events & Media , Geometry , ...
5
REPLIES
4.9K
VIEWS

A Rolling Square Bridge: Reimagining the Wheel

CONTRIBUTED BY: Stan Wagon | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Dynamic Interactivity , Engineering , ...
5
REPLIES
21.8K
VIEWS

Identity formula for Sqrt[Pi]

QUESTION FROM: Alexander Povolotsky | 2 years ago BY: Roland Franzius
Algebra , Mathematics , Wolfram|Alpha , Wolfram Language
5
REPLIES
8.2K
VIEWS

How can i plot this trascendental function?

QUESTION FROM: Rodolfo Damian Chapa Gonzalez | 2 years ago BY: Rodolfo Damian Chapa Gonzalez
Equation Solving , Mathematics , Numerical Computation , Physics , ...
5
REPLIES
3.1K
VIEWS

Displaying order of certain polynomials?

QUESTION FROM: Theta Rho | 2 years ago BY: Rohit Namjoshi
Algebra , Mathematics , Wolfram Cloud , Wolfram Language
5
REPLIES
2.9K
VIEWS

Solving differential equation in Mathematica without ProductLog

QUESTION FROM: Carl-Johan Eliasson | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
5
REPLIES
2.8K
VIEWS

Compute the gradient of a function of vectors

QUESTION FROM: Alexander Heger | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
5
REPLIES
3.9K
VIEWS

Issue using RegionFunction with ListContourPlot

QUESTION FROM: Ian Williams | 2 years ago BY: Ian Williams
Geometry , Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
5.6K
VIEWS

NDSolve: Unable to find initial conditions

QUESTION FROM: Roland Franzius | 2 years ago BY: Werner Geiger
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
5K
VIEWS

How to visualize a map f:R^n \to R^m?

QUESTION FROM: Elina Shishkina | 2 years ago BY: Elina Shishkina
Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
2.8K
VIEWS

How to plot piecewise function in Wolfram|Alpha?

QUESTION FROM: kor mathchobo | 2 years ago BY: Robin Hood
Algebra , Graphics and Visualization , Mathematics , Wolfram|Alpha
5
REPLIES
5.4K
VIEWS

Kendall Tau Distance/Measure of Discordance?

QUESTION FROM: Poomjai Nacaskul | 2 years ago BY: Poomjai Nacaskul
Mathematics , Statistics and Probability , Wolfram Language
5
REPLIES
3.9K
VIEWS

Experiments with a boolean rewriting system

CONTRIBUTED BY: Anders Lindman | 2 years ago BY: Anders Lindman
Logic and Boolean Algebra , Mathematics , Wolfram Language
5
REPLIES
4.1K
VIEWS

Unexpected output of Minors[ ] of a matrix

CONTRIBUTED BY: Sonal Dahiya | 2 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Wolfram Language
5
REPLIES
3.3K
VIEWS

Nonlinear Partial Differential Equation paid collaboration needed

QUESTION FROM: Tao Guo | 2 years ago BY: Tao Guo
Calculus , Equation Solving , Jobs & More Exchange , Mathematics , ...
5
REPLIES
6.4K
VIEWS

How to simplify Dot expressions in Mathematica?

QUESTION FROM: Yi-Shuai Niu | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
5
REPLIES
3.2K
VIEWS

Why is the graph for UnitStep not visible at certain points?

QUESTION FROM: Cornel B. | 2 years ago BY: Cornel B.
Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
3.6K
VIEWS

Going from points to piecewise function

QUESTION FROM: Ser Man | 2 years ago BY: Henrik Schachner
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
4.2K
VIEWS

Determine solution of an underdetermined linear equation system

QUESTION FROM: Nina Teller | 2 years ago BY: Mariusz Iwaniuk
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
5
REPLIES
4K
VIEWS

Solution values doubled in Fourier series problem output?

QUESTION FROM: Athanasios Paraskevopoulos | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wavelets and Fourier Series , ...
5
REPLIES
2.9K
VIEWS

How to solve overdetermined system of nonlinear ODEs?

QUESTION FROM: Burhanuddin Safi | 2 years ago BY: Burhanuddin Safi
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
4.2K
VIEWS

NIntegrate error: Integral and error estimates are 0 on all subregions

QUESTION FROM: sergey.mikhailov | 3 years ago BY: Michael Rogers
Calculus , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
4.2K
VIEWS

Benchmarking numerical differential equations in Wolfram Language

CONTRIBUTED BY: Hanfeng Zhai | 3 years ago BY: Hanfeng Zhai
Staff Picks , Calculus , Equation Solving , ...
5
REPLIES
7.5K
VIEWS

A system of linear higher-order of differential equations takes too long

QUESTION FROM: Marcin Kujawa | 3 years ago BY: Marcin Kujawa
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
5
REPLIES
3.6K
VIEWS

Test that two functions are equivalent

QUESTION FROM: Frank MacCrory | 3 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Statistics and Probability , Wolfram Language
5
REPLIES
3.2K
VIEWS

[WSS22] Fluid flow analysis through squared arrangements of pipes

CONTRIBUTED BY: Giuseppe Parasiliti Rantone | 3 years ago BY: Bernard Gress
Staff Picks , Equation Solving , Graphics and Visualization , ...
5
REPLIES
9.3K
VIEWS

Obtaining a unitary representation for a given group

CONTRIBUTED BY: Hans Dolhaine | 3 years ago BY: Hans Dolhaine
Staff Picks , Algebra , Mathematics , Wolfram Language
5
REPLIES
6.5K
VIEWS

Definition of GramPoint[ ] in MathWorld's Gram Point and Gram’s Law?

QUESTION FROM: Dan O'Leary | 3 years ago BY: Dan O'Leary
Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
3.7K
VIEWS

Mathematica vs 2022 MIT Integration Bee Qualifying Exam

CONTRIBUTED BY: Peter Burbery | 3 years ago BY: Peter Burbery
Calculus , Mathematics , Wolfram Language
5
REPLIES
3.5K
VIEWS

Course models: Disease Ecology & Evolution, Evolutionary Medicine

CONTRIBUTED BY: Gareth Russell | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Dynamic Interactivity , ...
5
REPLIES
8.4K
VIEWS

ListPlot of Farey Sequence

QUESTION FROM: serene H | 3 years ago BY: serene H
Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
3K
VIEWS

Finding the Derivative of an Interpolated Function

QUESTION FROM: Sinval Santos | 3 years ago BY: Sinval Santos
Calculus , Graphics and Visualization , Mathematics , Modeling , ...
5
REPLIES
4K
VIEWS

Extracting a list from each nxn matrix from a set of matrices

QUESTION FROM: Nomsa Ledwaba | 3 years ago BY: Eric Rimbey
Algebra , Mathematics , Wolfram Language
5
REPLIES
3.7K
VIEWS

[WSS22] Stability in a Star-Planet-Moon three-body system

CONTRIBUTED BY: Aman Burman | 3 years ago BY: Dean Gladish
Staff Picks , Astronomy , Dynamic Interactivity , ...
5
REPLIES
7.3K
VIEWS

Reconstructing Escher's cubic space division

CONTRIBUTED BY: Silvia Hao | 3 years ago BY: Michael Kelly
Staff Picks , Computational Humanities , Geometry , ...
5
REPLIES
9.9K
VIEWS

Extended Generalized Bivariate Meijer G-Function results don't match?

QUESTION FROM: Soumen Mondal | 3 years ago BY: Dirk Lehmkuhl
Calculus , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
4.9K
VIEWS

Keep only positive and real solutions from Solve?

QUESTION FROM: Fredrik Erling | 3 years ago BY: Phani Sanagavarapu
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
5
REPLIES
42.2K
VIEWS

Bitcoin price prediction assuming oscillatory growth and lengthening cycles

CONTRIBUTED BY: Kjell Hausken | 3 years ago BY: Kjell Hausken
Staff Picks , Blockchain , Data Science , Economics , ...
5
REPLIES
7K
VIEWS
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