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DSolve for y'[x] == (x^2 + xy[x] + 4 y[x]^2)/x^2

QUESTION FROM: D G | 11 years ago BY: Bill Simpson
Equation Solving , Mathematica , Mathematics , Wolfram Language
6
REPLIES
6.8K
VIEWS

Mnemonic conversion between kilometers and miles using Fibonacci ratios

CONTRIBUTED BY: Bill Gosper | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Mathematics , ...
1
REPLIES
6.8K
VIEWS

Integral question

QUESTION FROM: Ti Xu | 11 years ago BY: Frank Kampas
Calculus , Mathematica , Mathematics , Wolfram Language
1
REPLIES
6.8K
VIEWS

[?] Implement simple birth death process?

QUESTION FROM: Okkes Dulgerci | 8 years ago BY: Okkes Dulgerci
Mathematics , Wolfram Language
4
REPLIES
6.8K
VIEWS

How do I plot 2 3D objects and get the function of their intersection?

QUESTION FROM: Josh C | 11 years ago BY: Guy Mongelli
Graphics and Visualization , Mathematics , Wolfram|Alpha
1
REPLIES
6.8K
VIEWS

Equations with matrices

QUESTION FROM: B. P. | 5 years ago BY: Michael Helmle
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
4
REPLIES
6.8K
VIEWS

Get the coordinates from a curve?

QUESTION FROM: Xing Zhang | 9 years ago BY: Gianluca Gorni
Calculus , Mathematics , Symbolic Computations , Wolfram Language
1
REPLIES
6.8K
VIEWS

Solve the following nonlinear parabolic PDE with DSolve?

QUESTION FROM: Fabi An | 5 years ago BY: Anonymous User
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
6.8K
VIEWS

Fix this numerical analysis approach for Newton's gravity equation?

QUESTION FROM: Joshua Champion | 6 years ago BY: Neil Singer
Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
6.8K
VIEWS

Comparision of power of sequence of all natural number and the factorial of

CONTRIBUTED BY: Valter Zikovic | 5 years ago BY: Balram Shah
Mathematics
3
REPLIES
6.8K
VIEWS

Obtain exact values for a multivariable optimization problem?

QUESTION FROM: Dave Markham | 6 years ago BY: Neil Singer
Calculus , Equation Solving , Optimization , Mathematics , ...
2
REPLIES
6.8K
VIEWS

Dynamic model for world population prediction

CONTRIBUTED BY: Sangdon Lee | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Data Science , Dynamic Interactivity , ...
1
REPLIES
6.8K
VIEWS

I defined my own AltGamma[z], how to stop 'matica using its Gamma[z] rules?

QUESTION FROM: Simon Jackson | 10 years ago BY: Simon Jackson
Engineering , Mathematics , Symbolic Computations , Wolfram Language
3
REPLIES
6.8K
VIEWS

Volume relation between regular octahedron & tetrahedron: visual proof

CONTRIBUTED BY: Sandor Kabai | 3 years ago BY: Sandor Kabai
Staff Picks , Demonstrations , Dynamic Interactivity , Geometry , ...
2
REPLIES
6.8K
VIEWS

Note on NKS ch.5 sec.7: Systems Based on Constraints

CONTRIBUTED BY: Brad Klee | 4 years ago BY: Brad Klee
Staff Picks , Computer Science , Graphics and Visualization , ...
3
REPLIES
6.8K
VIEWS

[?] Display system of 4 equations dependent on time and each other?

QUESTION FROM: Jeff Powell | 8 years ago BY: Jeff Powell
Graphics and Visualization , Mathematics , Wolfram Language
7
REPLIES
6.8K
VIEWS

[WSS19] Calculate the volume, surface area, circumference and area

CONTRIBUTED BY: Abraham Gadalla | 6 years ago
Computer-Based Maths , Demonstrations , Dynamic Interactivity , ...
0
REPLIES
6.8K
VIEWS

How can I solve a system of polynomial equations?

QUESTION FROM: Cody Lamb | 10 years ago BY: Simon Cadrin
Mathematics
6
REPLIES
6.8K
VIEWS

Use GPUs to compute faster RandomFunction and ParallelTable?

QUESTION FROM: Rafael Petrosian | 7 years ago BY: Szabolcs Horvát
External Programs and Systems , High-Performance Computing , ...
1
REPLIES
6.8K
VIEWS

[?] Simplify 1.w? (w is any vector)

QUESTION FROM: David Nova | 8 years ago BY: Robert Hanlon
Algebra , Calculus , Mathematics , Symbolic Computations , ...
2
REPLIES
6.8K
VIEWS

Integrate this equation using the Wolfram Language?

QUESTION FROM: Nurul Ainina | 9 years ago BY: Nurul Ainina
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
12
REPLIES
6.8K
VIEWS

Hold[....] is not a number - what does that mean??

QUESTION FROM: Jotwie | 11 years ago BY: Udo Krause
Mathematics , Wolfram Language
1
REPLIES
6.8K
VIEWS

Calculate (A*Nabla)B ?

QUESTION FROM: mkssion | 8 years ago BY: Ivan Siahlo
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
6.8K
VIEWS

Graphing a Quadratic

QUESTION FROM: Jaewon Sim | 11 years ago BY: Dana DeLouis
Calculus , Equation Solving , Graphics and Visualization , ...
5
REPLIES
6.8K
VIEWS

Use package "Calculus`VectorAnalysis`" ?

QUESTION FROM: Yunlin Zeng | 6 years ago BY: Duncan Pettengill
Mathematics , Packages , Wolfram Language
3
REPLIES
6.8K
VIEWS

Avoid different results while using ListPlot and DiscretePlot?

QUESTION FROM: Steven Clark | 9 years ago BY: Anonymous User
Graphics and Visualization , Mathematics , Wolfram Language
7
REPLIES
6.8K
VIEWS

Function to view N-th digit of large number?

QUESTION FROM: SERGEJ KAREL | 3 years ago BY: Rohit Namjoshi
Mathematics , Wolfram Language
6
REPLIES
6.8K
VIEWS

DesignModelFit linear model fit by design matrix

CONTRIBUTED BY: Robert Nowak | 4 years ago BY: Daniel Lichtblau
Staff Picks , Data Science , Mathematica Add-Ons , Mathematics , ...
2
REPLIES
6.8K
VIEWS

V10 NDSolve output

QUESTION FROM: Jake Trexel | 11 years ago BY: Jake Trexel
Calculus , Mathematica , Mathematics , User Interface , ...
2
REPLIES
6.8K
VIEWS

Solve a system of 5 linear & non-linear equations

QUESTION FROM: Christos Papahristodoulou | 6 years ago BY: Christos Papahristodoulou
Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
6.8K
VIEWS

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

QUESTION FROM: Bhagya Athu | 8 years ago BY: Valeriu Ungureanu
Graphics and Visualization , Mathematics , Symbolic Computations , ...
7
REPLIES
6.8K
VIEWS

Inputting Phi into Mathematica

QUESTION FROM: Benjamin Goh | 11 years ago BY: Kay Herbert
Mathematica , Mathematics , Social Science , Wolfram Language
1
REPLIES
6.8K
VIEWS

Distribution of an expression

QUESTION FROM: djouaher zo | 10 years ago BY: djouaher zo
Mathematics
5
REPLIES
6.8K
VIEWS

Animating Wolfram surfaces with Blender: Pattern & Arbelos

CONTRIBUTED BY: Guenther Gsaller | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Computational Humanities , ...
1
REPLIES
6.7K
VIEWS

Dynamics of 3-point map in a circle: limit cycles, closures and porisms

CONTRIBUTED BY: Dan Reznik | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Computer-Based Maths , Dynamic Interactivity , ...
1
REPLIES
6.7K
VIEWS

Speed up evaluation of this integral?

QUESTION FROM: tom ri | 7 years ago BY: Alexander Trounev
Calculus , Mathematics , Numerical Computation , Physics , ...
3
REPLIES
6.7K
VIEWS

Integration along BSpline

QUESTION FROM: Christopher Purcell | 11 years ago BY: Christopher Purcell
Calculus , Mathematica , Mathematics , Numerical Computation
4
REPLIES
6.7K
VIEWS

[?]  Simplify powers, (x^n)^(1/n) to x?

QUESTION FROM: Kenneth Miller | 8 years ago BY: Hans Milton
Algebra , Mathematics , Symbolic Computations , Wolfram Language
4
REPLIES
6.7K
VIEWS

Absolute value within Solve function

QUESTION FROM: Indrek Morell | 12 years ago BY: Frank Kampas
Equation Solving , Mathematics
1
REPLIES
6.7K
VIEWS

Find error in "NDsolve"

QUESTION FROM: Lina Lili | 5 years ago BY: Hans Dolhaine
Control Systems , Equation Solving , Mathematics , ...
4
REPLIES
6.7K
VIEWS

Derivative of equation that contain complete elliptical integral?

QUESTION FROM: studygroups 2000 | 9 years ago BY: Gerard Kopcsay
Mathematics , Wolfram Language
3
REPLIES
6.7K
VIEWS

Using partial fraction decomposition to find inverse Fourier transform

QUESTION FROM: Ryan Rizzo | 6 years ago BY: Mariusz Iwaniuk
Mathematics , Wolfram|Alpha , Wolfram Language
1
REPLIES
6.7K
VIEWS

Set Precision- digits and rationals?

QUESTION FROM: Zhehao Zhang | 7 years ago BY: Zhehao Zhang
Calculus , Mathematica , Mathematics , Numerical Computation , ...
2
REPLIES
6.7K
VIEWS

Evaluate [omega(1) .. omega(10000)] in Wolfram|Alpha within few seconds?

QUESTION FROM: Cornelis van der Bent | 9 years ago BY: Bill Simpson
Algebra , Mathematics , Wolfram|Alpha , Wolfram Language
8
REPLIES
6.7K
VIEWS

Compute the following integral with NIntegrate?

QUESTION FROM: S. Gallagher | 7 years ago BY: Michael Rogers
Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
6.7K
VIEWS

Why do I get Null when using my function?

QUESTION FROM: Luis Ledesma | 10 years ago BY: Luis Ledesma
Computer Science , Data Science , Education , Mathematics , ...
5
REPLIES
6.7K
VIEWS

AI-co-led discovery: half-ice, half-fire driven ultranarrow phase crossover in 1D Potts ferrimagnets

CONTRIBUTED BY: Weiguo Yin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Artificial Intelligence , Calculus , ...
1
REPLIES
6.7K
VIEWS

Simplify my integrand to make the function Integrate[] work?

QUESTION FROM: Sida Liu | 6 years ago BY: Sida Liu
Calculus , Equation Solving , Mathematics , Physics , Wolfram Language
2
REPLIES
6.7K
VIEWS

[?] Use Manipulate to plot the Fourier Series?

QUESTION FROM: andreusp6 | 7 years ago BY: Updating Name
Dynamic Interactivity , Graphics and Visualization , Mathematics , ...
5
REPLIES
6.7K
VIEWS

Could you please help me out to fix this code?

QUESTION FROM: Muhammad Afzal | 10 years ago BY: Muhammad Afzal
Mathematica , Mathematics
2
REPLIES
6.7K
VIEWS

[?] Simplify InverseZTransform output?

QUESTION FROM: K M | 8 years ago BY: K M
Equation Solving , Mathematics , Signal Processing , ...
2
REPLIES
6.7K
VIEWS

Search for twin primes using sine function

CONTRIBUTED BY: Koichi Ohno | 6 years ago BY: Koichi Ohno
Discrete Mathematics , Mathematics , Wolfram Language
1
REPLIES
6.7K
VIEWS

Get positions of this list with UnsameQ and Infinity?

QUESTION FROM: Bruce Colletti | 9 years ago BY: Sander Huisman
Mathematics , Symbolic Computations , Wolfram Language
2
REPLIES
6.7K
VIEWS

Write a Function

QUESTION FROM: Alessio M | 11 years ago
Algebra , Calculus , Compilation , Engineering , Mathematica , ...
0
REPLIES
6.7K
VIEWS

Plot the first terms of Taylor series of the below function?

QUESTION FROM: Rafik zeraoulia | 6 years ago BY: Claudio Chaib
Calculus , Graphics and Visualization , Mathematics , ...
2
REPLIES
6.7K
VIEWS

Avoid Issue with open bracket size?

QUESTION FROM: sunny rose | 6 years ago BY: Gianluca Gorni
Authoring and Publishing , Mathematica , Mathematics , ...
1
REPLIES
6.7K
VIEWS

How can I calculate a Delta expression in wolframalpha with Pro Account ?

QUESTION FROM: Leonardo de castro | 12 years ago BY: Vitaliy Kaurov
Mathematics , Wolfram|Alpha
2
REPLIES
6.7K
VIEWS

Pluses versus minuses: probabilistic analysis of the multiway system

CONTRIBUTED BY: Rauan Kaldybaev | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Computational Systems , ...
1
REPLIES
6.7K
VIEWS

Typesetting inline math?

QUESTION FROM: Thomas Vermaak | 4 years ago BY: Thomas Vermaak
Mathematics , Presentation and Notebooks , Wolfram Language
8
REPLIES
6.7K
VIEWS

[WSS21] Use neural network to predict the solution of partial differential

CONTRIBUTED BY: Alireza Bafandeh | 1 year ago BY: Faz 1
Staff Picks , Artificial Intelligence , Calculus , Data Science , ...
2
REPLIES
6.7K
VIEWS

The UUDDUUD sequence, or the 3/7th sequence

CONTRIBUTED BY: Ed Pegg | 10 years ago BY: Vitaliy Kaurov
Mathematics , Recreation , Wolfram Language
6
REPLIES
6.7K
VIEWS

Knightdoku: solving Sudoku-like problem based on chess knights

QUESTION FROM: Matthew Sottile | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Challenges , Events & Media , ...
1
REPLIES
6.7K
VIEWS

A buddy system on Brexit and democracy

CONTRIBUTED BY: Thomas Colignatus | 7 years ago
Computational Humanities , Discrete Mathematics , Economics , ...
0
REPLIES
6.7K
VIEWS

Plot a stream function?

QUESTION FROM: Nurul Ainina | 8 years ago BY: Gianluca Gorni
Equation Solving , Graphics and Visualization , Mathematics , ...
3
REPLIES
6.7K
VIEWS

Surprising statistical patterns on MIT OpenCourseWare's YouTube channel

CONTRIBUTED BY: Rauan Kaldybaev | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Data Science , External Programs and Systems , ...
1
REPLIES
6.7K
VIEWS

[?] Indicate to W|A that variables are dependent, rather than independent?

QUESTION FROM: Robert Dinah | 8 years ago BY: Bill Simpson
Calculus , Mathematics , Wolfram|Alpha , Wolfram Language
5
REPLIES
6.7K
VIEWS

Solve decoupled PDE's with NDSolve?

QUESTION FROM: Eric Smith | 7 years ago BY: Eric Smith
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
6.7K
VIEWS

FullSimplify "not working" with a correct Assumption in this example, why ?

QUESTION FROM: Matthias Hoffmann | 10 years ago BY: Matthias Hoffmann
Algebra , Calculus , Mathematica , Mathematics , Physics
3
REPLIES
6.7K
VIEWS

How to get the same FFT result in Mathematica?

QUESTION FROM: Luis Ledesma | 11 years ago BY: Frank Kampas
Mathematics , Wolfram Language
7
REPLIES
6.7K
VIEWS

Power law with cutoff (continuous) distribution

QUESTION FROM: Diego Zviovich | 8 years ago BY: Vitaliy Kaurov
Mathematics , Statistics and Probability , Wolfram Language
1
REPLIES
6.7K
VIEWS

Symbolic substitution with differential equations?

QUESTION FROM: Jean Guy Lussier | 9 years ago BY: Jean Guy Lussier
Algebra , Calculus , Equation Solving , Mathematics , Physics , ...
8
REPLIES
6.7K
VIEWS

Any built function for this permutation?

QUESTION FROM: Okkes Dulgerci | 10 years ago BY: Okkes Dulgerci
Discrete Mathematics , Mathematica , Mathematics
2
REPLIES
6.7K
VIEWS

Avoid InterpolationOrder->2 to split up the Plot?

QUESTION FROM: Alex Graham | 7 years ago BY: Mariusz Iwaniuk
Graphics and Visualization , Mathematics , Wolfram Language
3
REPLIES
6.7K
VIEWS

Developing Chinese crypto in the Voxelverse.

CONTRIBUTED BY: Brad Klee | 3 years ago BY: Brad Klee
Challenges , Computer Science , Cryptography , Image Processing , ...
5
REPLIES
6.7K
VIEWS

Listing off summations in Mathematica 11.1?

QUESTION FROM: Dustin Deegan | 8 years ago BY: Valeriu Ungureanu
Mathematics , Wolfram Language
5
REPLIES
6.7K
VIEWS

Reinventing the SVD decomposition from cartography

CONTRIBUTED BY: Rauan Kaldybaev | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Calculus , Geographic Information System , ...
1
REPLIES
6.7K
VIEWS

Ordering of solutions for quartics when using Root

QUESTION FROM: Yuriy Ivanov | 11 years ago BY: David J M Park Jr
Algebra , Calculus , Equation Solving , Mathematica , Mathematics , ...
2
REPLIES
6.7K
VIEWS

[CALL] SpacePartition: design and applications

CONTRIBUTED BY: Vitaliy Kaurov | 8 years ago BY: Sander Huisman
Computer Science , Geometry , Graphics and Visualization , ...
5
REPLIES
6.7K
VIEWS

[?] Solve this problem using graph theory?

QUESTION FROM: Juan Preciado | 8 years ago BY: Szabolcs Horvát
Graphs and Networks , Mathematics , Wolfram Language
3
REPLIES
6.7K
VIEWS

How to plot basic geometry ?

QUESTION FROM: Ali Abkatef | 12 years ago BY: Narasimham gudipaty
Mathematics
2
REPLIES
6.7K
VIEWS

Assembly of an estimator-regulator with an optimal estimator & controller

CONTRIBUTED BY: Maher Kuzbari | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Control Systems , Engineering , Know-How , ...
1
REPLIES
6.7K
VIEWS

Get a steady PlotLabel for a running simulation graphics?

QUESTION FROM: Ulrich Mutze | 7 years ago BY: Ulrich Mutze
Graphics and Visualization , Mathematics , Physics , Wolfram Language
2
REPLIES
6.7K
VIEWS

Sporadic convergence failure: “SingularValueDecomposition::cflsvd”

QUESTION FROM: John Sidles | 8 years ago BY: Kevin Slagle
Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
6.7K
VIEWS

How can I combine -for- function with Grid

QUESTION FROM: Tom Zinger | 10 years ago BY: Sander Huisman
Graphics and Visualization , Mathematica , Optimization , Mathematics
3
REPLIES
6.7K
VIEWS

Compute transfer function of a linear system analytically?

QUESTION FROM: Denis von Arx | 7 years ago BY: Denis von Arx
Control Systems , Equation Solving , Mathematics , ...
1
REPLIES
6.7K
VIEWS

Thickness in ParametricPlot3D

QUESTION FROM: Russell Todres | 11 years ago BY: Russell Todres
Engineering , Graphics and Visualization , Mathematics , ...
2
REPLIES
6.7K
VIEWS

Solve a Saint-Venant PDE with NDSolve?

QUESTION FROM: Martin Laabs | 7 years ago BY: Martin Laabs
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
6.7K
VIEWS

SpaceCurveData

QUESTION FROM: SY Yoon | 10 years ago BY: Sean Clarke
Geometry , Graphics and Visualization , Mathematica , Mathematics
1
REPLIES
6.7K
VIEWS

Series with ArcTan gives wrong answer with Wolfram Language!

QUESTION FROM: Stanislav Apostolov | 4 years ago BY: Daniel Lichtblau
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
6.7K
VIEWS

Search for prime numbers greater than $11$ using sine function

CONTRIBUTED BY: Koichi Ohno | 6 years ago BY: Koichi Ohno
Discrete Mathematics , Mathematics , Wolfram Language
1
REPLIES
6.7K
VIEWS

[WSC17] Using Voronoi Diagrams to Optimize Offensive Schemes

CONTRIBUTED BY: Jordan Wang | 8 years ago
Computer Science , Graphics and Visualization , Mathematics , ...
0
REPLIES
6.7K
VIEWS

Different results from two identical sums?

QUESTION FROM: Nic Bat | 5 years ago BY: Nic Bat
Compilation , Discrete Mathematics , High-Performance Computing , ...
2
REPLIES
6.7K
VIEWS

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

CONTRIBUTED BY: Andrea Li | 1 year ago BY: Brad Klee
Staff Picks , Computer Science , Discrete Mathematics , ...
8
REPLIES
6.7K
VIEWS

A graphical solution of two equations is possible. Numerically, too?

QUESTION FROM: Niels Nutzer | 12 years ago BY: Frank Kampas
Algebra , Equation Solving , Mathematica , Mathematics , ...
3
REPLIES
6.7K
VIEWS

[WSS20] Product line optimization for a monopoly firm

CONTRIBUTED BY: Monir Jalili | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Dynamic Interactivity , Economics , Equation Solving , ...
1
REPLIES
6.7K
VIEWS

[?] Solve an equation with a constraint?

QUESTION FROM: Alex Graham | 6 years ago BY: Mariusz Iwaniuk
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
6.7K
VIEWS

How to find the intersection point of four equations?

QUESTION FROM: Sunanda Lakkimsetti | 4 years ago BY: Sunanda Lakkimsetti
Equation Solving , Mathematica , Mathematics , ...
13
REPLIES
6.7K
VIEWS

[?] Get cube roots with W|A?

QUESTION FROM: Alex Bukin | 6 years ago BY: Alex Bukin
Calculus , Mathematics , Wolfram|Alpha , Wolfram Language
2
REPLIES
6.7K
VIEWS

[?] Sum and Solve the following expression?

QUESTION FROM: Neil Spalter | 8 years ago BY: Jim Baldwin
Equation Solving , Mathematics , Wolfram Language
4
REPLIES
6.7K
VIEWS

Solve the following problem with boundary condition using version 11.01.?

QUESTION FROM: claygruesbeck | 8 years ago BY: claygruesbeck
Equation Solving , Graphics and Visualization , Mathematics , ...
5
REPLIES
6.7K
VIEWS
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