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Solve f(X)=0 where X is a matrix and f(X) is a complex matrix?

QUESTION FROM: Massa Ndong | 9 years ago BY: Bill Simpson
Equation Solving , Mathematics , Numerical Computation , ...
10
REPLIES
8.7K
VIEWS

[?] Account for this non-odd result from FourierSinTransform?

QUESTION FROM: Anonymous User | 9 years ago BY: Anonymous User
Mathematics , Wavelets and Fourier Series , Wolfram Language
2
REPLIES
6.1K
VIEWS

[?] Make a formula for this image?

QUESTION FROM: gage benham | 9 years ago BY: EDITORIAL BOARD
Graphics and Visualization , Image Processing , Mathematics , ...
2
REPLIES
7.9K
VIEWS

[?] Solve a differential equation with DSolve?

QUESTION FROM: Brian Cao | 9 years ago BY: Neil Singer
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
9.9K
VIEWS

Pick the elements of a matrix in increasing numerical values for loop op?

QUESTION FROM: S G | 9 years ago BY: Anonymous User
Logic and Boolean Algebra , Mathematics , Wolfram Language
2
REPLIES
9.1K
VIEWS

[?] Calculate a double integration of two functions?

QUESTION FROM: Raivat Shah | 9 years ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Statistics and Probability , Wolfram Language
5
REPLIES
6K
VIEWS

Account for this non-linearity in FourierTransform?

QUESTION FROM: Anonymous User | 9 years ago BY: Anonymous User
Mathematics , Symbolic Computations , Wavelets and Fourier Series , ...
6
REPLIES
7.5K
VIEWS

[?] Use AMS-Euler fonts in Mathematica?

QUESTION FROM: Jeffrey Denison | 9 years ago BY: Jeffrey Denison
Authoring and Publishing , Mathematics , Wolfram Language
2
REPLIES
10.4K
VIEWS

Get a good visual solution of PDE?

QUESTION FROM: André Dauphiné | 9 years ago BY: André Dauphiné
Calculus , Curated Data , Equation Solving , ...
2
REPLIES
8.1K
VIEWS

Solve a system of linear equations?

QUESTION FROM: Pontus Vikstål | 2 years ago BY: Gianluca Gorni
Equation Solving , Mathematics , Symbolic Computations , ...
7
REPLIES
9.2K
VIEWS

Find the region after using Minimize?

QUESTION FROM: dirac fang | 9 years ago BY: Mariusz Iwaniuk
Optimization , Mathematics , Wolfram Language
1
REPLIES
4.5K
VIEWS

Use mouse for vertex editing or mesh bending ?

QUESTION FROM: Anonymous User | 9 years ago
Graphics and Visualization , Import and Export , Mathematica , ...
0
REPLIES
1.8K
VIEWS

Can RSolve handle 4 simultaneous 1st-Order non-linear difference equations?

QUESTION FROM: Rafael Rossi Silveira | 9 years ago BY: Rafael Rossi Silveira
Equation Solving , Mathematics , Wolfram Language
4
REPLIES
5K
VIEWS

What is the correct ContourPlot here? Where should I assign my parameters?

QUESTION FROM: Emmanuel Guilleminot | 9 years ago BY: Emmanuel Guilleminot
Graphics and Visualization , Mathematics , Physics , Wolfram Language
23
REPLIES
10.5K
VIEWS

[?] Add plus 1 to the {i_,i_} elements in a list?

QUESTION FROM: Ana Reyna | 9 years ago BY: Michael Rogers
Mathematics , Symbolic Computations , Wolfram Language
6
REPLIES
8.9K
VIEWS

Reduce the time of calculations in my program (Table&Sum&function)?

QUESTION FROM: saeid M | 9 years ago BY: Anonymous User
Mathematics , Wolfram Language
6
REPLIES
6.6K
VIEWS

Standardize or normalize a function in a 3d-plot?

QUESTION FROM: Robert Schröder | 9 years ago BY: EDITORIAL BOARD
Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
2.6K
VIEWS

Solve a fraction when the denominator approaches zero?

QUESTION FROM: Luther Nayhm | 9 years ago BY: Anonymous User
Equation Solving , Mathematics , Wolfram Language
17
REPLIES
10.9K
VIEWS

Solve bus routing problem with a single destination and multiple depots?

QUESTION FROM: Matthias Odisio | 9 years ago BY: Matthias Odisio
Engineering , Graphics and Visualization , Optimization , ...
6
REPLIES
23.7K
VIEWS

[?] Plot roller coaster mathematics?

QUESTION FROM: Bert Aerts | 9 years ago BY: Bert Aerts
Graphics and Visualization , Mathematics , Physics , Wolfram Language
3
REPLIES
8.4K
VIEWS

[?]Avoid "NDSolve::overdet: There are fewer dependent variables, ..."error?

QUESTION FROM: tarik balci | 9 years ago BY: tarik balci
Equation Solving , Mathematics , Modeling , Numerical Computation , ...
4
REPLIES
10.1K
VIEWS

Do I need to drop external binaries for Mathematica Online .nb?

QUESTION FROM: Anonymous User | 9 years ago BY: Anonymous User
External Programs and Systems , Graphics and Visualization , ...
1
REPLIES
3.2K
VIEWS

Solve an equation?

QUESTION FROM: David Zentler-Munro | 9 years ago BY: Bill Simpson
Equation Solving , Mathematics , Wolfram Language
5
REPLIES
6.3K
VIEWS

Use Neumann Boundary in solving Finite Difference Method ?

QUESTION FROM: Saleh Baradaran | 9 years ago
Discrete Mathematics , Equation Solving , Mathematics , ...
0
REPLIES
4K
VIEWS

Loop NSolve of simultaneous equations n=100 times?

QUESTION FROM: RICKY DEVI | 9 years ago BY: EDITORIAL BOARD
Equation Solving , Mathematics , Numerical Computation , ...
1
REPLIES
4.3K
VIEWS

Re-mesh, downsample & upsample a DiscretizeRegion object?

QUESTION FROM: Alexander Erlich | 9 years ago
3D Printing , Equation Solving , Geometry , ...
0
REPLIES
7K
VIEWS

How does Wolfram Language deal with DiracDelta[0] in Integrate command?

QUESTION FROM: Vamsi Meesala | 9 years ago BY: Daniel Lichtblau
Engineering , Mathematics , Physics , Signal Processing , ...
3
REPLIES
8.5K
VIEWS

DSolve function provides unexpected solution?

QUESTION FROM: Brian Appleton | 9 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
5.8K
VIEWS

[?] Plot an Archimedean Spiral with equidistant points?

QUESTION FROM: Nikki Peter | 8 years ago BY: Nikki Peter
Calculus , Geometry , Graphics and Visualization , Mathematics , ...
11
REPLIES
12.5K
VIEWS

Transformation of equation from cartesian to oblate spheroidal coordinate?

QUESTION FROM: Jose Calderon | 9 years ago
Geometry , Graphics and Visualization , Mathematics , Wolfram Language
0
REPLIES
3.9K
VIEWS

[?] Provide a default value for x in f[x_?NumericQ]:=...?

QUESTION FROM: Ulrich Mutze | 9 years ago BY: Ulrich Mutze
Mathematics , Wolfram Language
5
REPLIES
9.1K
VIEWS

Inactive operator in NDSolve (FEM) produced different solution

QUESTION FROM: L C | 9 years ago
Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
3.2K
VIEWS

[?] Make a function to check if a poker hand contains exactly one pair?

QUESTION FROM: Mathman12 Jo | 9 years ago BY: Mathman12 Jo
Discrete Mathematics , Mathematics , Statistics and Probability , ...
3
REPLIES
9.6K
VIEWS

NDSolveValue fails to evaluate the solution for non-interger coefficient?

QUESTION FROM: L C | 9 years ago BY: Yehuda Ben-Shimol
Equation Solving , Mathematics , Wolfram Language
1
REPLIES
6.7K
VIEWS

[?] Find the sets of numbers for which these identities hold validly?

QUESTION FROM: Anonymous User | 9 years ago BY: Anonymous User
Equation Solving , Mathematics , Wolfram Language
2
REPLIES
2.3K
VIEWS

Integrate over Dirac Deltas - avoid apparently odd behaviour?

QUESTION FROM: Arny Toynbee | 9 years ago
Mathematics , Physics , Wolfram Language
0
REPLIES
4.2K
VIEWS

Change step size in the integration of diff. equations using modified ...?

QUESTION FROM: Zharou Fisher | 9 years ago BY: J. M.
Calculus , Mathematics , Numerical Computation , Wolfram Language
1
REPLIES
6K
VIEWS

Avoid ParametricPlot3D producing curves that are "under-sampled"?

QUESTION FROM: Yohann Bénédic | 9 years ago BY: Yohann Bénédic
Graphics and Visualization , Mathematics , Wolfram Language
4
REPLIES
3.6K
VIEWS

Find out all functions and their parameters in a .dll file?

QUESTION FROM: Yode Japhe | 9 years ago
Curated Data , Mathematica , Mathematics , Wolfram Language
0
REPLIES
8.3K
VIEWS

Check if an expression is the solution of a PDE problem?

QUESTION FROM: Jacques Ou | 9 years ago BY: Jacques Ou
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
4.1K
VIEWS

Perform convergence tests for a multidimensional integral?

QUESTION FROM: Arny Toynbee | 9 years ago
Calculus , Mathematics , Wolfram Language
0
REPLIES
5K
VIEWS

ContourPlot gives a strange graphics for usial polynome (2 variables)

QUESTION FROM: Alexey Podchufarov | 9 years ago BY: EDITORIAL BOARD
Calculus , Graphics and Visualization , Mathematica , Mathematics , ...
2
REPLIES
7.2K
VIEWS

Get solution for b, “x + b < constraint” for domain_start < x < domain_end?

QUESTION FROM: Panagiotis KMD | 9 years ago BY: Panagiotis KMD
Algebra , Mathematics , Wolfram Language
2
REPLIES
5.8K
VIEWS

Variable substitution in a differential equation

QUESTION FROM: Jacques Ou | 9 years ago BY: Jacques Ou
Equation Solving , Mathematics , Wolfram Language
2
REPLIES
4.4K
VIEWS

Get argument formula of a complex number with integer variable?

QUESTION FROM: Gennaro Arguzzi | 8 years ago BY: Daniel Lichtblau
Mathematics , Wolfram Language
3
REPLIES
6.7K
VIEWS

InterpolationFunction solving differential equations

QUESTION FROM: Luis Estrada | 9 years ago BY: Michael Rogers
Equation Solving , Mathematics , Numerical Computation , Packages , ...
1
REPLIES
5.1K
VIEWS

NDSolve with varying parameter using for loop?

QUESTION FROM: Anonymous User | 9 years ago BY: Marco Thiel
Calculus , Equation Solving , Graphics and Visualization , ...
3
REPLIES
5.9K
VIEWS

Get (l,r)-core of a directed graph - simultaneously determined degree set

QUESTION FROM: Tugrul Temel | 9 years ago
Data Science , Graphs and Networks , Mathematics , Wolfram Language
0
REPLIES
4.6K
VIEWS

Simplify a complicated solution by a simpler way?

QUESTION FROM: Jacques Ou | 9 years ago BY: EDITORIAL BOARD
Equation Solving , Mathematics , Symbolic Computations , ...
7
REPLIES
6.9K
VIEWS

Avoid the warning message while using DSolve?

QUESTION FROM: Jacques Ou | 9 years ago BY: Jacques Ou
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
7
REPLIES
4.9K
VIEWS

Use Wolfram|Alpha for computations that google sheets can't handle?

QUESTION FROM: JT Tyler | 9 years ago BY: Kapio Letto
Mathematics , Wolfram|Alpha , Wolfram|Alpha Integration
1
REPLIES
10.2K
VIEWS

Deploy 3D interactivity to the Wolfram cloud?

QUESTION FROM: Dominic Milioto | 9 years ago BY: John Pacey
Dynamic Interactivity , Graphics and Visualization , Mathematics , ...
3
REPLIES
9.2K
VIEWS

Get solution that satisfies the equation?

QUESTION FROM: Jacques Ou | 9 years ago BY: Jacques Ou
Calculus , Equation Solving , Mathematics , Wolfram Language
4
REPLIES
5.1K
VIEWS

Plot a solution of Laplace equation over a rectangle?

QUESTION FROM: Sergio Cabral | 9 years ago BY: Sergio Cabral
Equation Solving , Graphics and Visualization , Mathematics
7
REPLIES
7.7K
VIEWS

Find coordinates of an intersecting Line and Surface in 3D?

QUESTION FROM: Matthew Boraas | 9 years ago BY: Gianluca Gorni
Geometry , Graphics and Visualization , Mathematics , ...
1
REPLIES
5.3K
VIEWS

[?] Curve fitting with several implicit functions?

QUESTION FROM: Frank Biedermann | 9 years ago BY: Frank Biedermann
Data Science , Equation Solving , Mathematics , ...
5
REPLIES
6.3K
VIEWS

Fit a long polynomial inside the Wolfram|Alpha character limit?

QUESTION FROM: Capt. Kiwi | 9 years ago
Mathematics , Wolfram|Alpha
0
REPLIES
4.3K
VIEWS

Set accuracy when dealing with recursive calculation?

QUESTION FROM: Zhehao Zhang | 9 years ago
Calculus , Control Systems , Mathematics , Numerical Computation , ...
0
REPLIES
5.5K
VIEWS

Find the fixed point of the following equation?

QUESTION FROM: Dia Ghosh | 9 years ago BY: Isaac Abraham
Optimization , Mathematics , Wolfram Language
5
REPLIES
9.6K
VIEWS

[?] Get gradient of a function?

QUESTION FROM: Ghady Almufleh | 9 years ago BY: Neil Singer
Calculus , Mathematics , Wolfram Language
9
REPLIES
9.7K
VIEWS

[?] Plot DSolve equation by ListPlot ?

QUESTION FROM: Saleh Baradaran | 9 years ago BY: Okkes Dulgerci
Equation Solving , Graphics and Visualization , Mathematics , ...
2
REPLIES
9.9K
VIEWS

Integration involving vectors?

QUESTION FROM: Arny Toynbee | 9 years ago BY: Arny Toynbee
Calculus , Mathematics , Numerical Computation , Physics , ...
13
REPLIES
12.7K
VIEWS

Construct / re-arrange some lists?

QUESTION FROM: Nikki Peter | 9 years ago BY: Nikki Peter
Mathematics , Symbolic Computations , Wolfram Language
5
REPLIES
8.7K
VIEWS

Solve a matrix equation?

QUESTION FROM: M Gladen | 9 years ago
Equation Solving , Mathematics , Symbolic Computations , ...
0
REPLIES
2.6K
VIEWS

[?] Solve an ODE with DSolve?

QUESTION FROM: Michael Astahov | 9 years ago BY: Mariusz Iwaniuk
Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
10.3K
VIEWS

Improve speed to obtain numerical values of Bessel function?

QUESTION FROM: Markus Schmidt | 9 years ago BY: Markus Schmidt
Compilation , Discrete Mathematics , High-Performance Computing , ...
4
REPLIES
12.7K
VIEWS

Iterative calculation with loops?

QUESTION FROM: Fajoui Jamal | 9 years ago BY: Fajoui Jamal
Mathematics , Wolfram Language
2
REPLIES
4.7K
VIEWS

[?] Calculate this simple equation 2^x * 5^y = 5000 ?

QUESTION FROM: knudl budl | 9 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
8.1K
VIEWS

Solve a calculus problem?

QUESTION FROM: Vivek Sutra | 9 years ago BY: Vivek Sutra
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
5.1K
VIEWS

Get iterative solution of simultaneous differential equations?

QUESTION FROM: Sergio Cabral | 9 years ago BY: Sergio Cabral
Engineering , Equation Solving , Graphics and Visualization , ...
8
REPLIES
8.5K
VIEWS

Wolfram|Alpha solved a function that does not behave as expected?

QUESTION FROM: Matthijs Damen | 9 years ago BY: Matthijs Damen
Algebra , Calculus , Mathematics , Symbolic Computations , ...
2
REPLIES
5.5K
VIEWS

Get the common denominator?

QUESTION FROM: Zharou Fisher | 9 years ago BY: Valeriu Ungureanu
Mathematics , Wolfram Language
9
REPLIES
13.6K
VIEWS

[?] Use Assuming and Substitute commands to simplify the expression?

QUESTION FROM: Jacques Ou | 9 years ago BY: Bill Simpson
Calculus , Mathematics , Symbolic Computations , Wolfram Language
4
REPLIES
5.8K
VIEWS

[?] Meaning of a strange curve on surface - 3DPlot ?

QUESTION FROM: Gennaro Arguzzi | 9 years ago BY: Anonymous User
Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
4.2K
VIEWS

[?] Prove equality - Application of Dirac delta property?

QUESTION FROM: Gennaro Arguzzi | 9 years ago BY: Gennaro Arguzzi
Mathematics , Symbolic Computations , Wolfram Language
12
REPLIES
7.8K
VIEWS

[?] Understand the function t*DiracDelta[t] at t=0 - Strange result?

QUESTION FROM: Gennaro Arguzzi | 9 years ago BY: Frank Kampas
Mathematics , Wolfram Language
1
REPLIES
4.2K
VIEWS

Plot 3D fractal tree?

QUESTION FROM: Luis Ledesma | 9 years ago BY: Szabolcs Horvát
Biological Sciences , Graphics and Visualization , Mathematics , ...
3
REPLIES
15.2K
VIEWS

Write the command for this recursive formula?

QUESTION FROM: Zhehao Zhang | 9 years ago BY: Zhehao Zhang
Algebra , Calculus , Mathematics , Symbolic Computations , ...
1
REPLIES
7.2K
VIEWS

[?]Define sinc[x_]:=Piecewise[{{Sin[Pi x]/(Pi x), {x != 0}},{1, {x == 0}}}]

QUESTION FROM: Gennaro Arguzzi | 9 years ago BY: Sander Huisman
Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
6.8K
VIEWS

Two expressions for one integral leads to different results?

QUESTION FROM: Zhehao Zhang | 9 years ago
Calculus , Mathematics , Numerical Computation , Wolfram Language
0
REPLIES
5.5K
VIEWS

Build a Zero Tree/Quad Tree on the output of a CDFWavelet[] Transform?

QUESTION FROM: Hamood Khan | 9 years ago
Graphics and Visualization , Image Processing , Mathematics , ...
0
REPLIES
5K
VIEWS

[?] Find relationships between coefficients - Equality?

QUESTION FROM: Gennaro Arguzzi | 9 years ago BY: Gennaro Arguzzi
Mathematics , Symbolic Computations , Wolfram Language
5
REPLIES
5.3K
VIEWS

[?] Multiplicate these terms using Wolfram|Alpha?

QUESTION FROM: Samuel Otero | 9 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Symbolic Computations , Wolfram|Alpha
2
REPLIES
7K
VIEWS

Classification methods formulas used in SVM model?

QUESTION FROM: vahid karimi | 9 years ago
Data Science , Machine Learning , Mathematics , Wolfram Language
0
REPLIES
2.6K
VIEWS

Avoid wrong results while using SystemModeler Complex Product Block?

QUESTION FROM: Daniel Frew | 9 years ago BY: Otto Tronarp
Algebra , Mathematics , SystemModeler
1
REPLIES
8.9K
VIEWS

[?] Solve and plot an integration with 2 variables?

QUESTION FROM: Yujin Tong | 9 years ago BY: Yujin Tong
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
4K
VIEWS

Manipulate table-functions?

QUESTION FROM: Nikki Peter | 9 years ago BY: Bill Simpson
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
7.2K
VIEWS

[?] ContourPlot 2 variables functions in W|A?

QUESTION FROM: ALEXANDRE SCHYNS | 9 years ago BY: ALEXANDRE SCHYNS
Graphics and Visualization , Mathematics , Wolfram|Alpha
3
REPLIES
6.2K
VIEWS

[?] Solve second order differential equation with W|A?

QUESTION FROM: Steven Wood | 9 years ago BY: Steven Wood
Equation Solving , Mathematics , Wolfram|Alpha
2
REPLIES
7.6K
VIEWS

Find all pairs of common tangents to a curve?

QUESTION FROM: Deb Chicago | 9 years ago BY: Gianluca Gorni
Equation Solving , Graphics and Visualization , Mathematics , ...
5
REPLIES
5K
VIEWS

[?] Verify a symbolic equality?

QUESTION FROM: Gennaro Arguzzi | 9 years ago BY: Gianluca Gorni
Mathematics , Symbolic Computations , Wolfram Language
1
REPLIES
4.4K
VIEWS

[?] Calculate Bessel Function zeros? (Can PayPal for solution)

QUESTION FROM: Michael M | 9 years ago BY: J. M.
Calculus , Mathematics , Physics , Wolfram Language
4
REPLIES
13.4K
VIEWS

[?] Plot in 3D a X-zylo ?

QUESTION FROM: Donghwan Roh | 9 years ago BY: Donghwan Roh
3D Printing , Graphics and Visualization , Mathematics , ...
16
REPLIES
13.6K
VIEWS

How does Reduce solve Bivariate Diophantine quadratic equations?

QUESTION FROM: man t | 9 years ago BY: man t
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
5.1K
VIEWS

Use Wolfram|Alpha in Python?

QUESTION FROM: Nadia Singh | 8 years ago BY: P-B Monaco
Computer Science , Equation Solving , External Programs and Systems , ...
1
REPLIES
12.1K
VIEWS

Global optimization with ParametricIPOPTMinimize

QUESTION FROM: Frank Kampas | 9 years ago
Optimization , Mathematics , Numerical Computation , Wolfram Language
0
REPLIES
4K
VIEWS

[?] Ratios in expanded Fibonacci series?

QUESTION FROM: Mark Good | 9 years ago BY: Mark Good
Discrete Mathematics , Mathematics , Wolfram Language
9
REPLIES
8.8K
VIEWS

[?] Use your own functions in a parametric plot?

QUESTION FROM: Lisan Lisov | 9 years ago BY: Lisan Lisov
Graphics and Visualization , Mathematics , Symbolic Computations , ...
5
REPLIES
5.9K
VIEWS

[JOB] Earn income creating a Mathematica notebook

QUESTION FROM: Richard Gaylord | 4 years ago BY: Luis Felipe Massena Misiec
Authoring and Publishing , Jobs & More Exchange , Mathematics , ...
3
REPLIES
23.8K
VIEWS

[?] CountourPlot of (Cos(2x))^2 ==0 ?

QUESTION FROM: Bhagya Athu | 9 years ago BY: Valeriu Ungureanu
Graphics and Visualization , Mathematics , Symbolic Computations , ...
7
REPLIES
7.2K
VIEWS
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