Group Abstract Group Abstract

«Groups
Mathematics
Join
Everything from arithmetic, algebra, calculus, and geometry to analysis, logic, set theory, and uncertainty.

Discussions List Discussions List

NDSolve error: Encountered non-numerical value

QUESTION FROM: Yumin Tian | 3 days ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
91
VIEWS

Algebraic verification: from separated quadratic form to coupled bilinear form

QUESTION FROM: Bill Blair | 3 months ago BY: Michael Rogers
Algebra , Mathematics , Symbolic Computations
8
REPLIES
525
VIEWS

Viewing eigenvalues and eigenvectors

QUESTION FROM: Mitchell Sandlin | 4 months ago BY: Gianluca Gorni
Algebra , Graphics and Visualization , Mathematics
8
REPLIES
1.2K
VIEWS

Changing output default to StandardForm / TraditionalForm

QUESTION FROM: chris jackson | 9 months ago BY: Sinval Santos
Mathematics , Wolfram Language
8
REPLIES
7.2K
VIEWS

Solve geometric quantities using GeometricScene

QUESTION FROM: Xiangyang Zhou | 11 months ago BY: Gianluca Gorni
Geometry , Mathematics , Wolfram Language
8
REPLIES
2.3K
VIEWS

How to get nontrivial solution of differential equation (Euler buckling load)?

QUESTION FROM: Ralph Schenn | 11 months ago BY: Ralph Schenn
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
2.6K
VIEWS

Self-referential recurrence

QUESTION FROM: Paul Abbott | 11 months ago BY: Daniel Lichtblau
Discrete Mathematics , Mathematics
8
REPLIES
2.9K
VIEWS

Square root of the square of a complex number

QUESTION FROM: Sasha Mandra | 0 months ago BY: Michael Rogers
Algebra , Mathematics , Symbolic Computations , Wolfram Language
8
REPLIES
1.9K
VIEWS

How can I correct the following code to produce the expected result?

QUESTION FROM: Xu Xu | 0 months ago BY: Xu Xu
Algebra , Equation Solving , Mathematics , Physics , ...
8
REPLIES
2.7K
VIEWS

Mathematica 14.2 is not performing matrix multiplication on 3 times 3 matrices.

QUESTION FROM: P. Marrone | 1 year ago BY: Hans Milton
Algebra , Mathematics , Wolfram Language
8
REPLIES
3.1K
VIEWS

Wrong frequencies in Periodogram?

QUESTION FROM: Vladimir Ivanov | 1 year ago BY: Henrik Schachner
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
2.9K
VIEWS

Help with rearranging the equation and solution Steps?

QUESTION FROM: Sami Heidari | 1 year ago BY: Sami Heidari
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
1.6K
VIEWS

Overflow while computing 10^16 digit

QUESTION FROM: Mark Raygorodsky | 1 year ago BY: Michael Rogers
Computer Science , Mathematics , Numerical Computation , ...
8
REPLIES
2.8K
VIEWS

FullSimplify again not realizing the simplest solution. (ICBM problem)

QUESTION FROM: Philip Blanco | 1 year ago BY: Michael Rogers
Mathematics , Symbolic Computations , Wolfram Language
8
REPLIES
2.9K
VIEWS

Jacobian matrix of two functions

QUESTION FROM: Evan Cooch | 2 years ago BY: kaylene ginny
Algebra , Mathematics , Wolfram Language
8
REPLIES
4.5K
VIEWS

What is the reason of insufficient memory error while using FindRoot?

QUESTION FROM: Leslaw Bieniasz | 2 years ago BY: Hans Milton
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
2.6K
VIEWS

Help with complex integral

QUESTION FROM: Minaa Askari | 2 years ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Wolfram Language
8
REPLIES
2.7K
VIEWS

Indicator error from Sum[ ]

QUESTION FROM: Ovidiu Ghiță | 2 years ago BY: Michael Rogers
Mathematics , Wolfram Language
8
REPLIES
1.9K
VIEWS

Use NMinimize calling an own defined function?

QUESTION FROM: Mario Junior Mencagli | 2 years ago BY: Unknown Unknown
Optimization , Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
10.3K
VIEWS

Use function of a variable as a part specifier?

QUESTION FROM: Steven Clark | 2 years ago BY: James Bowery
Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
20.6K
VIEWS

Sum and Product a feature request

QUESTION FROM: Robert Nowak | 2 years ago BY: Robert Nowak
Algebra , Mathematics , Symbolic Computations , Wolfram Language
8
REPLIES
2.9K
VIEWS

Help explaining an output of polar plot from Wolfram Alpha

QUESTION FROM: Poppy Jane Lives | 2 years ago BY: Poppy Jane Lives
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
2K
VIEWS

Simplify sums with Kronecker deltas?

QUESTION FROM: Guillaume Laporte | 2 years ago BY: Marco Francischello
Mathematics , Physics , Symbolic Computations , Wolfram Language
8
REPLIES
10.7K
VIEWS

Measuring 4x4 Reversi: Canonicalization & Impartiality Functions on Multiway Graphs

CONTRIBUTED BY: Andrea Li | 2 years ago BY: Brad Klee
Staff Picks , Computer Science , Discrete Mathematics , ...
8
REPLIES
8.6K
VIEWS

The Simplify function is not completely simplified

QUESTION FROM: Zhenyu Zeng | 2 years ago BY: Zhenyu Zeng
Mathematics , Symbolic Computations , Wolfram Language
8
REPLIES
3.5K
VIEWS

Minimize doesn't work for a given function

QUESTION FROM: Gabriel Ybarra Marcaida | 2 years ago BY: Denis Ivanov
Optimization , Mathematics , Wolfram Language
8
REPLIES
3.4K
VIEWS

[GiF] ℘' (Conformal transformation of hexagonal grid)

CONTRIBUTED BY: Clayton Shonkwiler | 2 years ago BY: Christopher Young
Staff Picks , Computational Humanities , Geometry , ...
8
REPLIES
8.6K
VIEWS

Problem with using AllReplace at equation solutions

QUESTION FROM: P. Marrone | 2 years ago BY: Ankit Kantheti
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
4.2K
VIEWS

[R&DL] Wolfram R&D LIVE: Nutrients by the Numbers -- Food and Nutrition Statistics

CONTRIBUTED BY: Gay Wilson | 2 years ago BY: Gay Wilson
Staff Picks , Biological Sciences , Curated Data , Events & Media , ...
8
REPLIES
7.5K
VIEWS

Switching samples in Mann-Whitney test changes p-value

QUESTION FROM: Evgeniy Evtushenko | 2 years ago BY: Eduardo Serna
Mathematics , Statistics and Probability , Wolfram|Alpha , ...
8
REPLIES
7.1K
VIEWS

Unexpected discontinuity plot

QUESTION FROM: Mohamad Toutounji | 3 years ago BY: Gianluca Gorni
Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
2K
VIEWS

Deriving a matrix from a given matrix equation

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Algebra , Mathematics , Wolfram Language
8
REPLIES
4.1K
VIEWS

"Encountered a gradient that is effectively zero..." message with FindFit

QUESTION FROM: Osman Ala | 3 years ago BY: Jim Baldwin
Data Science , Mathematics , Modeling , Wolfram Language
8
REPLIES
4.1K
VIEWS

Why does the command 'HoldForm' appear for the derivative of the 2nd function?

QUESTION FROM: Vincent Renaud | 3 years ago BY: Gianluca Gorni
Mathematics , Wolfram Language
8
REPLIES
3.4K
VIEWS

Exponents of exponents

QUESTION FROM: Neil Geismar | 3 years ago BY: Ted Ersek
Mathematics , Wolfram Language
8
REPLIES
4.1K
VIEWS

Function's value is always zero?

QUESTION FROM: Jayashree Das | 3 years ago BY: Jayashree Das
Graphics and Visualization , Mathematics
8
REPLIES
2.5K
VIEWS

Two equivalent expressions give False with ===

QUESTION FROM: Jon Joseph | 3 years ago BY: Jon Joseph
Algebra , Mathematics , Wolfram Language
8
REPLIES
3.6K
VIEWS

How big a number can PrimeQ work?

QUESTION FROM: Luis Felipe Massena Misiec | 3 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
10.6K
VIEWS

[GIF] Elaborating on Arrival's Alien Language, Part I., II. & III.

CONTRIBUTED BY: Brad Klee | 3 years ago BY: Ashkan Rezaee
Staff Picks , Computational Linguistics , Equation Solving , ...
8
REPLIES
125K
VIEWS

Solving Generalized Heat Equation by separation of variables

QUESTION FROM: Athanasios Paraskevopoulos | 3 years ago BY: Athanasios Paraskevopoulos
Calculus , Equation Solving , Graphics and Visualization , ...
8
REPLIES
3.8K
VIEWS

Why "Log10" (ScalingFunctions) is not working?

QUESTION FROM: Cornel B. | 3 years ago BY: Cornel B.
Control Systems , Engineering , Graphics and Visualization , ...
8
REPLIES
4.5K
VIEWS

Improved Eulers Method Problem

QUESTION FROM: Athanasios Paraskevopoulos | 3 years ago BY: Rohit Namjoshi
Calculus , Equation Solving , Mathematica , Mathematics , ...
8
REPLIES
6.1K
VIEWS

How to check expressions for symbolic equality?

QUESTION FROM: W T | 3 years ago BY: Eric Rimbey
Mathematics , Symbolic Computations , Wolfram|Alpha , Wolfram Language
8
REPLIES
12.2K
VIEWS

Integrate function yielding two different answers

QUESTION FROM: Tim Kirkpatrick | 3 years ago BY: Tim Kirkpatrick
Calculus , Mathematics , Wolfram Language
8
REPLIES
5.1K
VIEWS

Calculating sensitivity indices of R0

QUESTION FROM: Mad Hew | 4 years ago BY: Mad Hew
Mathematics , Wolfram Language
8
REPLIES
6.2K
VIEWS

Any way for simplification with WM functions

QUESTION FROM: VolMike VolMike | 4 years ago BY: VolMike VolMike
Algebra , Mathematics , Wolfram|Alpha , Wolfram Language
8
REPLIES
4.7K
VIEWS

Custom function is not working

QUESTION FROM: Indranil Maiti | 4 years ago BY: Indranil Maiti
Algebra , Mathematics , Wolfram Language
8
REPLIES
4.1K
VIEWS

Compare the symbolic solution with numerical solution

QUESTION FROM: A Afi | 4 years ago BY: Gianluca Gorni
Equation Solving , Graphics and Visualization , Mathematics , ...
8
REPLIES
4K
VIEWS

Plotting 3D complex numbers with colors encoding the imaginary part

QUESTION FROM: Daniel Niu | 4 years ago BY: Neil Singer
Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
5.7K
VIEWS

Infinite series works only to order k=20

QUESTION FROM: MEK MUS | 4 years ago BY: Updating Name
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
5.4K
VIEWS
12
13
14
15
16

Group Count Group Count

6261 Discussions

Group Branding Group Branding

New Discussion New Discussion

ACTIVE MEMBERS ACTIVE MEMBERS

RELATED GROUPS RELATED GROUPS

RELATED GROUPS
Graphics and Visualization 4K discussions 1K subscriptions
Wolfram Language 11K discussions 2K subscriptions
Geometry 1K discussions 1K subscriptions