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Automatically calculate equation's discriminant and Veda？

QUESTION FROM: Lee Tao | 5 years ago BY: Lee Tao
Algebra , Mathematics , Wolfram Language
20
REPLIES
7.7K
VIEWS

Modified Bessel differential equation?

QUESTION FROM: Xin Ning | 5 years ago BY: Xin Ning
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
4
REPLIES
4.5K
VIEWS

Error solving inequality: no methods in Solve?

QUESTION FROM: Jonathan Wooldridge | 5 years ago BY: Jonathan Wooldridge
Algebra , Equation Solving , Mathematics , Wolfram Language
2
REPLIES
3.9K
VIEWS

Export FindRoot[ ] output to xls file?

QUESTION FROM: Chenghua Deng | 5 years ago BY: Hans Milton
Algebra , Equation Solving , Import and Export , Mathematics , ...
7
REPLIES
5.7K
VIEWS

NDSolve for a system of second order differential equations

QUESTION FROM: Lorenzo Mereu | 5 years ago BY: Lorenzo Mereu
Algebra , Calculus , Equation Solving , Mathematics , ...
5
REPLIES
4.6K
VIEWS

QRDecomposiiton difference between 12.0 and 12.3

QUESTION FROM: Haolin Li | 5 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Wolfram Language
3
REPLIES
4.9K
VIEWS

Solving a complicated expression in xyz?

QUESTION FROM: Eft Rsd | 5 years ago BY: Eft Rsd
Algebra , Equation Solving , Mathematics , Wolfram Language
5
REPLIES
5.4K
VIEWS

Using NSolve to solve equation given by power series?

QUESTION FROM: Anonymous User | 5 years ago BY: Anonymous User
Algebra , Equation Solving , Graphics and Visualization , ...
8
REPLIES
7.3K
VIEWS

[solved] Kernel crashes during calculation of determinant of a matrix

QUESTION FROM: Martin Guttmann | 5 years ago BY: Martin Guttmann
Algebra , Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
5.8K
VIEWS

Pure imaginary complex number

QUESTION FROM: Mathieu Auffray | 5 years ago BY: Shenghui Yang
Algebra , Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
5.5K
VIEWS

Integration problem in terms of reals returns complex result

QUESTION FROM: Renata Litovzeva | 6 years ago BY: Renata Litovzeva
Algebra , Calculus , Mathematics , Wolfram Language
2
REPLIES
3.4K
VIEWS

How to know if a point is in-between 2 3D parallel planes ?

QUESTION FROM: Florent B | 6 years ago BY: Ta'a Nwa Dombou
Algebra , Calculus , Equation Solving , Graphs and Networks , ...
6
REPLIES
7.7K
VIEWS

Calculate and plot Ramanujan-Sato Series?

QUESTION FROM: Sebastian Taylor | 6 years ago BY: Sebastian Taylor
Algebra , Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
4.4K
VIEWS

Solve a System of equations using matrix inverse

QUESTION FROM: Willy Saint-Hilaire | 6 years ago BY: Hans Dolhaine
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
6.6K
VIEWS

Pattern Matching with And[a,b]

QUESTION FROM: uwe moehring | 6 years ago BY: uwe moehring
Algebra , Mathematics , Wolfram Language
2
REPLIES
5.5K
VIEWS

Regarding units of output value

QUESTION FROM: abhishek sharma | 6 years ago BY: abhishek sharma
Algebra , Calculus , Mathematica , Optimization , Mathematics , ...
9
REPLIES
8.7K
VIEWS

Angle variable "escaped" from DynamicModule?

QUESTION FROM: Christopher Young | 6 years ago BY: Christopher Young
Algebra , Dynamic Interactivity , Geometry , ...
11
REPLIES
8.8K
VIEWS

[?] List of elements of a complex sequence

QUESTION FROM: Al Gorgeous | 6 years ago BY: Al Gorgeous
Algebra , Graphics and Visualization , Mathematics , Wolfram Language
6
REPLIES
3.6K
VIEWS

Find a function with a known gradient?

QUESTION FROM: Meryem Aslı | 6 years ago BY: Meryem Aslı
Algebra , Calculus , Equation Solving , Geometry , Mathematics , ...
6
REPLIES
7.4K
VIEWS

[?] Perform an approximation with radial basis functions?

QUESTION FROM: Peter a | 6 years ago BY: Michael Kelly
Algebra , Calculus , Discrete Mathematics , Mathematics , Physics , ...
2
REPLIES
14.1K
VIEWS

Solve this quartic equation?

QUESTION FROM: Alejandro Cahuana | 7 years ago BY: David Reiss
Algebra , Mathematics , Numerical Computation , ...
1
REPLIES
6.4K
VIEWS

Invert a 2x2 matrix with 2x2 matrix elements?

QUESTION FROM: stan gianzero | 7 years ago BY: stan gianzero
Algebra , Mathematics , Wolfram Language
39
REPLIES
22.5K
VIEWS

Expand a polynomial expression?

QUESTION FROM: Paulo Rodrigues | 7 years ago BY: Gianluca Gorni
Algebra , Mathematics , Symbolic Computations , Wolfram Language
4
REPLIES
5.9K
VIEWS

[?] Solve powerless polynomial equations?

QUESTION FROM: 永康 杨 | 7 years ago BY: Updating Name
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
4.7K
VIEWS

ChromaticPolynomial just stop for GridGraph[{7,8}] ?

QUESTION FROM: J S | 7 years ago BY: Licheng Zhang
Algebra , Discrete Mathematics , Graphs and Networks , Mathematics , ...
7
REPLIES
9.5K
VIEWS

Make a matrix from an Array?

QUESTION FROM: ????? ????????? | 7 years ago BY: Bo Brymer
Algebra , Mathematics , Wolfram Language
3
REPLIES
6.1K
VIEWS

[?] Gaussian elimination in integers mod p in W|A?

QUESTION FROM: Hunter Vallejos | 7 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Wolfram|Alpha , Wolfram Language
1
REPLIES
5.1K
VIEWS

Solve this equation with partial fractions?

QUESTION FROM: alie rainh | 7 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
1
REPLIES
4.6K
VIEWS

[?] Get same results from same equations but simplified?

QUESTION FROM: Mirza Farrukh Baig | 8 years ago BY: Mirza Farrukh Baig
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
2
REPLIES
8.1K
VIEWS

Solve the differential equation by Runge Kutta method?

QUESTION FROM: V? Ng?c Vi?t Hoàng | 8 years ago BY: V? Ng?c Vi?t Hoàng
Algebra , Calculus , Equation Solving , Mathematics , ...
6
REPLIES
6.1K
VIEWS

Clear the value of a subscripted variable?

QUESTION FROM: Jonathan Millen | 8 years ago BY: Jonathan Millen
Algebra , Mathematics , Wolfram Language
4
REPLIES
6.7K
VIEWS

WA says '7x/x = 7' only if x ? 0, but has no problem with 'ax/x = a'. Why?

QUESTION FROM: C R | 8 years ago BY: Murray Eisenberg
Algebra , Mathematics , Wolfram Language
2
REPLIES
5.1K
VIEWS

Workaround? "Simplify" complicates this expression

QUESTION FROM: Anonymous User | 8 years ago BY: Kyle Martin
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
6.1K
VIEWS

Define a custom variation on Sqrt[-1] ?

QUESTION FROM: Bryan Lettner | 8 years ago BY: Neil Singer
Algebra , Mathematics , Wolfram Language
6
REPLIES
8.1K
VIEWS

Solve the following equation with RSolve and non-autonomous series?

QUESTION FROM: F. P. | 8 years ago BY: F. P.
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
5
REPLIES
4.8K
VIEWS

Find the chemical composition of a compound solving a system of equations?

QUESTION FROM: Juan Manuel Casas-Solvas | 8 years ago BY: David J M Park Jr
Algebra , Chemistry , Equation Solving , Mathematics , ...
8
REPLIES
10.3K
VIEWS

Improve this relatively simple FindRoot code?

QUESTION FROM: Todor Latev | 8 years ago BY: Michael Rogers
Algebra , Calculus , Equation Solving , Mathematics , ...
4
REPLIES
9K
VIEWS

Get two dimensional Newton-Raphson in inverse kinematics of a plane robot?

QUESTION FROM: Ivan L. | 8 years ago BY: Ivan L.
Algebra , Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
8.6K
VIEWS

[?] Get eigenvalues of a real symmetric matrix?

QUESTION FROM: Sandhya Tripathi | 9 years ago BY: Ken Mednick
Algebra , Mathematics , Wolfram|Alpha
2
REPLIES
9.2K
VIEWS

Solve mixed power and exponential algebraic equation?

QUESTION FROM: max ron | 9 years ago BY: Marco Thiel
Algebra , Equation Solving , Mathematics , Wolfram|Alpha , ...
10
REPLIES
13.5K
VIEWS

How is Dot product implemented in Mathematica?

QUESTION FROM: Sandu Ursu | 9 years ago BY: Daniel Lichtblau
Algebra , Mathematica , Mathematics , Wolfram Language
1
REPLIES
10.1K
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

[?] Remove/Delete imaginary parts of a list?

QUESTION FROM: Alexander Hempfing | 9 years ago BY: Sander Huisman
Algebra , Calculus , Mathematics , Wolfram Language
3
REPLIES
11.2K
VIEWS

[WSC17] Using Kleene and Priest Logic Rules to Create Ternary Logic Tables

QUESTION FROM: Taha Shaikh | 9 years ago
Algebra , Computer-Based Maths , Computer Science , ...
0
REPLIES
11.1K
VIEWS

Check the answer of a differential equation when I put it in Wolfram Alpha?

QUESTION FROM: jorge aldape | 9 years ago BY: jorge aldape
Algebra , Calculus , Equation Solving , Mathematics , Wolfram|Alpha
3
REPLIES
10.1K
VIEWS

Get real and imaginary parts separated as a list u+Iv -> {u,v}?

QUESTION FROM: James Thoreen | 9 years ago BY: James Thoreen
Algebra , Mathematics , Wolfram Language
5
REPLIES
5.8K
VIEWS

Speed up large matrix multiplications with or without high precision?

QUESTION FROM: Erdem Uguz | 10 years ago BY: Sander Huisman
Algebra , Optimization , Mathematics , Wolfram Language
14
REPLIES
10.2K
VIEWS

Dynamically creating variables for optimization problem?

QUESTION FROM: Neel Basu | 10 years ago BY: Neel Basu
Algebra , Mathematics , Symbolic Computations , Wolfram Language
5
REPLIES
9.8K
VIEWS

Plotting Vertical Asymptotes with ExclusionsStyle?

QUESTION FROM: Mark Greenberg | 10 years ago BY: Mark Greenberg
Algebra , Graphics and Visualization , Mathematics , ...
2
REPLIES
11.9K
VIEWS

Can this equation system be solved?

QUESTION FROM: Fred Alstair | 11 years ago BY: Fred Alstair
Algebra , Mathematica , Mathematics
4
REPLIES
6.9K
VIEWS

How to display all complex solutions of an expression

QUESTION FROM: Edoardo Ottoni | 11 years ago BY: Gianluca Gorni
Algebra , Calculus , Mathematica , Mathematics
2
REPLIES
4.9K
VIEWS

Algorithm behind NSolve

QUESTION FROM: Kashif Nazar | 11 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Wolfram Language
6
REPLIES
8.8K
VIEWS

Questions about expressions of trigonometry

QUESTION FROM: Pietro Rampini | 11 years ago BY: David Gathercole
Algebra , Mathematics , Wolfram|Alpha
4
REPLIES
12.1K
VIEWS

Problems with accuracy/precision of determinante, numerics

QUESTION FROM: Markus Schmidt | 11 years ago BY: Markus Schmidt
Algebra , Equation Solving , Numerical Computation , Wolfram Language
6
REPLIES
5.7K
VIEWS

ComplexExpand_NSolve_Problem

QUESTION FROM: Kashif Nazar | 11 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
6.1K
VIEWS

plotting Piecewise function and Circles

QUESTION FROM: P Kay | 11 years ago BY: P Kay
Algebra , Geometry , Graphics and Visualization , Mathematica , ...
2
REPLIES
7.3K
VIEWS

Equation from Solve[] that can be Plotted (Solved)

QUESTION FROM: Greg | 11 years ago BY: Greg
Algebra , Equation Solving , Graphics and Visualization
2
REPLIES
4.6K
VIEWS

Can I use Range for this lists

QUESTION FROM: Camilo Pacheco | 11 years ago BY: Udo Krause
Algebra , Mathematica , Wolfram Language
2
REPLIES
7.8K
VIEWS

Could you please help me to solve this partial differential equation ?

QUESTION FROM: sanaz ka | 11 years ago BY: sanaz ka
Algebra , Calculus , Equation Solving , Numerical Computation , ...
4
REPLIES
5.8K
VIEWS

Finding acceleration in kinematics

QUESTION FROM: Aaron Phillips | 11 years ago BY: Frank Kampas
Algebra , Physics , Wolfram Language
3
REPLIES
9.9K
VIEWS

Need help in using Resolve to prove equality over specified domain

QUESTION FROM: Glen Deering | 11 years ago BY: Glen Deering
Algebra , Calculus , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
8.1K
VIEWS

Is there a way to represent Knuth's up-arrow notation in Wolfram|Alpha?

QUESTION FROM: James Counterman | 12 years ago BY: Ilian Gachevski
Algebra , Mathematica , User Interface , Wolfram|Alpha
1
REPLIES
22.5K
VIEWS

Solving polynomial with matrix coefficients

QUESTION FROM: Paul Ryan | 12 years ago BY: Paul Ryan
Algebra , Mathematica , Wolfram Language
12
REPLIES
7.7K
VIEWS

How on Mathematica would you determine if matrix has an inverse?

QUESTION FROM: Anonymous User | 12 years ago BY: Daniel Lichtblau
Algebra , Mathematica , Wolfram Language
2
REPLIES
7K
VIEWS

Differentiating wrt time

QUESTION FROM: SS Shri | 12 years ago BY: SS Shri
Algebra , Calculus , Mathematica , Mathematics , ...
2
REPLIES
10.8K
VIEWS

How do I enter fractions in Wolfram Alpha ?

QUESTION FROM: Susan Bedker | 12 years ago BY: Murray Eisenberg
Algebra , User Interface , Wolfram|Alpha
4
REPLIES
24.2K
VIEWS

Factoring (polynomial)

QUESTION FROM: cassidy rainy | 12 years ago BY: Mario Veruete
Algebra , Raspberry Pi , Wolfram Language
2
REPLIES
7.8K
VIEWS

Limiting the output from an NSolve problem to Reals

QUESTION FROM: Doug Stoll | 12 years ago BY: Doug Stoll
Algebra , Mathematica , Numerical Computation , Wolfram Language
4
REPLIES
5.3K
VIEWS

Simplifying complex expression of Exp or trig functions

QUESTION FROM: Erich Neuwirth | 12 years ago BY: Erich Neuwirth
Algebra , Mathematica , Wolfram Language
5
REPLIES
8.9K
VIEWS

Help me to solve this equation with Solve command

QUESTION FROM: dang chau | 12 years ago BY: Bill Simpson
Algebra , Mathematica , Wolfram Language
3
REPLIES
8K
VIEWS

continued square root

QUESTION FROM: mohammad kazem Akhgary | 12 years ago BY: mohammad kazem Akhgary
Algebra , Mathematica , Mathematics , Wolfram|Alpha
2
REPLIES
6.1K
VIEWS

How do I find all the zero's in a Conditional Expression for the given exp?

QUESTION FROM: Wayne Roest | 12 years ago BY: Bill Simpson
Algebra , Calculus , Equation Solving , Mathematica , Optimization , ...
4
REPLIES
6.7K
VIEWS

Solving a symbolic linear matrix equation

QUESTION FROM: Maxim Faber | 12 years ago BY: Maxim Faber
Algebra , Equation Solving , Wolfram Language
2
REPLIES
5.9K
VIEWS

How to group constants that multiply the same product of trig functions?

QUESTION FROM: Stanton Peale | 12 years ago BY: Daniel Lichtblau
Algebra , Mathematica , Wolfram Language
4
REPLIES
5.8K
VIEWS

Hello!:) How can I solve this inequality?

QUESTION FROM: Kodi Hannon | 12 years ago BY: Kodi Hannon
Algebra , Mathematica
8
REPLIES
5.4K
VIEWS

How would I go about solving this?

QUESTION FROM: Turda Alexander | 13 years ago BY: W. Craig Carter
Algebra , Mathematica , Mathematics
5
REPLIES
9.4K
VIEWS

How to solve this simple non-linear equation numerically with Abs[]?

QUESTION FROM: Felix | 13 years ago BY: Bill Simpson
Algebra , Equation Solving , Mathematica , Mathematics , ...
2
REPLIES
8K
VIEWS

Building block matrices so trace works properly

QUESTION FROM: diego pasquier | 13 years ago BY: diego pasquier
Algebra , Mathematica , Mathematics
4
REPLIES
6.1K
VIEWS

Plotting multiple lines and using filling on only one line

QUESTION FROM: Allen Hammack | 13 years ago BY: Arnoud Buzing
Algebra , Mathematica , Mathematics
4
REPLIES
12.9K
VIEWS

Simplifying the Black Scholes Equation

QUESTION FROM: Martin Hadley | 14 years ago BY: Martin Hadley
Algebra , Equation Solving , Finance Platform , Mathematica
2
REPLIES
15.6K
VIEWS

What methods can be used to correctly determine the parity of each type of function?

QUESTION FROM: Bill Blair | 2 months ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
273
VIEWS

Using the Manipulate function with the VectorPlot function question

QUESTION FROM: Mitchell Sandlin | 2 months ago BY: Eric Rimbey
Algebra , Graphics and Visualization , Mathematics , Wolfram Language
1
REPLIES
317
VIEWS

Quantum optics. How to analytically solve the equations below?

QUESTION FROM: Tree Clean | 3 months ago BY: Bruno Tenorio
Algebra , Equation Solving , Symbolic Computations , Wolfram Language
4
REPLIES
496
VIEWS

All seven variables are real numbers. Is it possible to obtain an analytical solution?

QUESTION FROM: Wang Jiapeng | 3 months ago BY: EDITORIAL BOARD
Algebra , Equation Solving , Symbolic Computations , Wolfram Language
2
REPLIES
374
VIEWS

How to avoid error: Equations may not give solutions for all "solve" variables

QUESTION FROM: Nomsa Ledwaba | 4 months ago BY: Gianluca Gorni
Algebra , Equation Solving
2
REPLIES
531
VIEWS

How to obtain the cofactors of a matrix to compute the adjoin matrix

QUESTION FROM: Nomsa Ledwaba | 5 months ago BY: Gianluca Gorni
Algebra
1
REPLIES
710
VIEWS

Coefficient extraction for x^2, y^2,xy and x,y

QUESTION FROM: Wen Dao | 8 months ago BY: Wen Dao
Algebra , Mathematics , Wolfram Language
4
REPLIES
1.6K
VIEWS

How to Use FullSimplify to breakdown algebraic expression

QUESTION FROM: James Parkus | 8 months ago BY: James Parkus
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
1.5K
VIEWS

Simplifying a term to achieve a certain result

QUESTION FROM: Jim Clinton | 9 months ago BY: Jim Clinton
Algebra , Mathematics , Wolfram Language
4
REPLIES
1K
VIEWS

Code taking too long time to compute

QUESTION FROM: Ananth Krishna | 10 months ago BY: Gianluca Gorni
Algebra , Astronomy , Graphics and Visualization , Mathematics , ...
1
REPLIES
1.8K
VIEWS

Solving simple equation involving Tan fails

QUESTION FROM: Paul R | 10 months ago BY: Michael Rogers
Algebra , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.8K
VIEWS

Finding pivots of a matrix with symbols

QUESTION FROM: Xiangyang Zhou | 0 months ago BY: Xiangyang Zhou
Algebra , Mathematics , Symbolic Computations , Wolfram Language
3
REPLIES
1.6K
VIEWS

CylindricalDecomposition doesn't finish the process

QUESTION FROM: Jacob Pavelka | 1 year ago BY: Jacob Pavelka
Algebra , Geometry , Mathematics , Wolfram Language
2
REPLIES
1.3K
VIEWS

How to simplify this complex equation

QUESTION FROM: Claudine Walduck | 1 year ago BY: Gianluca Gorni
Algebra , Mathematics , Wolfram Language
3
REPLIES
1.7K
VIEWS

Matrix inverse using singular value decomposition

QUESTION FROM: Charles Elliott | 1 year ago BY: Gianluca Gorni
Algebra , Mathematics , Wolfram Language
6
REPLIES
2.1K
VIEWS

Assistance with solving coupled equations using module with external file

QUESTION FROM: Mohsen Dayyani Kelisani | 1 year ago BY: Mohsen Dayyani Kelisani
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
2K
VIEWS

Unable to get my critical points even when I have defined the functions properly?

QUESTION FROM: Antam Gill | 2 years ago BY: Hans Milton
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
4
REPLIES
2.7K
VIEWS

Plotting level curves for orthogonal analytic functions u, and v

QUESTION FROM: Matthew Mawson | 2 years ago BY: Matthew Mawson
Algebra , Graphics and Visualization , Mathematics
2
REPLIES
1.4K
VIEWS

How to get a simple system of recursion equations to give output?

QUESTION FROM: Iuval Clejan | 2 years ago BY: Iuval Clejan
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
6
REPLIES
2.7K
VIEWS

Matrix, the elements of which is a function

QUESTION FROM: Subhajit Paul | 2 years ago BY: Subhajit Paul
Algebra , Mathematics , Wolfram Language
2
REPLIES
1.3K
VIEWS
2
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4
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