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Everything from arithmetic, algebra, calculus, and geometry to analysis, logic, set theory, and uncertainty.

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Using Solve but cannot get an answer

QUESTION FROM: George Ip | 2 years ago BY: George Ip
Calculus , Equation Solving , Mathematics , Wolfram Language
5
REPLIES
1.8K
VIEWS

Inverse Stieltjes transform in Wolfram Language?

QUESTION FROM: Yaroslav Bulatov | 2 years ago BY: EDITORIAL BOARD
Mathematics , Wolfram Language
2
REPLIES
2K
VIEWS

Unexpected inequality solution from Wolfram Alpha

QUESTION FROM: Mat Am | 2 years ago BY: Gianluca Gorni
Mathematics , Wolfram|Alpha
7
REPLIES
1.9K
VIEWS

What does TrapezoidalRule at NIntegrate really do?

QUESTION FROM: Joachim Janezic | 2 years ago BY: Joachim Janezic
Calculus , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
2.3K
VIEWS

Interactive vector Geometry exercises

QUESTION FROM: Michael Rogers | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Dynamic Interactivity , Education , Geometry , ...
1
REPLIES
3.8K
VIEWS

Issue with solving an optimization model using FindMaximum and mismatch the result from a paper

QUESTION FROM: Shafa Hananta | 2 years ago BY: Gianluca Gorni
Optimization , Mathematics , Wolfram Language
3
REPLIES
2.5K
VIEWS

Ability to see direction of Parametric Curves when plotted?

QUESTION FROM: Alex Flores | 2 years ago BY: Gianluca Gorni
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
9.5K
VIEWS

3DPlot not working for a function that contains complex solutions

QUESTION FROM: C goulart | 2 years ago BY: Gianluca Gorni
Graphics and Visualization , Mathematics , Wolfram Language
1
REPLIES
1.2K
VIEWS

How can I use Mathematica to write a system of N coupled equations as explicit functions

QUESTION FROM: Esraaj Sarkar Gupta | 2 years ago BY: Mariusz Iwaniuk
Algebra , Mathematics , Wolfram Language
4
REPLIES
1.7K
VIEWS

Define a sparse matrix from triplets

QUESTION FROM: Terry Hendicott | 2 years ago BY: Terry Hendicott
Algebra , Mathematics , Wolfram Language
7
REPLIES
2.2K
VIEWS

Using symbolic calculation result to evaluate real expression

QUESTION FROM: Thomas Fowler | 2 years ago BY: Thomas Fowler
Calculus , Mathematics , Physics , Symbolic Computations , ...
6
REPLIES
2.5K
VIEWS

How to define and evaluate the so-called 'Hadamard Product' with symbolic arrays?

QUESTION FROM: Alberto Silva Ariano | 2 years ago BY: Michael Rogers
Algebra , Mathematics , Wolfram Language
10
REPLIES
4.3K
VIEWS

Convert differential equation with substitutions?

QUESTION FROM: Sami Heidari | 2 years ago BY: Sami Heidari
Calculus , Equation Solving , Mathematics , Wolfram Language
15
REPLIES
4.1K
VIEWS

Solving a system of equations gives error: not a valid variable

QUESTION FROM: P. Marrone | 2 years ago BY: P. Marrone
Algebra , Know-How , Mathematica , Mathematics
2
REPLIES
2.3K
VIEWS

Is there a simple conversion of periodic decimal numbers into fractions

QUESTION FROM: Albert Gaechter | 2 years ago BY: Albert Gaechter
Mathematics , Wolfram Language
2
REPLIES
1.6K
VIEWS

Obtaining permutations in a circle

QUESTION FROM: Yaw Antoa Onyina | 2 years ago BY: Hans Milton
Mathematics , Wolfram Language
11
REPLIES
4.8K
VIEWS

How to assign a variable to a particular type of number series?

QUESTION FROM: Jacob Hutchins | 2 years ago BY: Alam Khan
Discrete Mathematics , Mathematics , Wolfram Language
5
REPLIES
8.6K
VIEWS

Analytical Solution of a linear system of equations in 8 unknowns

QUESTION FROM: Juan Gustavo Wouchuk Schmidt | 2 years ago BY: Juan Gustavo Wouchuk Schmidt
Equation Solving , Mathematics , Symbolic Computations , ...
10
REPLIES
3.1K
VIEWS

EM wave through free space propagation

QUESTION FROM: Ruslan Lagashkin | 2 years ago BY: Paul Abbott
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
1
REPLIES
2.9K
VIEWS

Base converter for strings

QUESTION FROM: Caleb Stevens | 2 years ago BY: Caleb Stevens
Mathematics , Natural Language Processing , Wolfram Language
2
REPLIES
2.6K
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

How to find any solution to a single differential equation with two dependent variables?

QUESTION FROM: Richard Jensen | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
1.9K
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

Why does nested Integration works for a single function but not for a list of functions ?

QUESTION FROM: Aka Kopejkin | 2 years ago BY: Aka Kopejkin
Calculus , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
3.1K
VIEWS

A generalized function with parameters for both the upper and lower lines of the integrand to use

QUESTION FROM: Sen Ma | 2 years ago BY: Sen Ma
Calculus , Mathematics , Wolfram Language
2
REPLIES
2.7K
VIEWS

How to solve the equation algebraically?

QUESTION FROM: Aleksandr Miller | 2 years ago BY: Debojyoti Mondal
Algebra , Equation Solving , Mathematics , Wolfram Language
7
REPLIES
5.4K
VIEWS

Asymptotic plot is not matching the analysis line in log mode, but it does in linear mode. Why?

QUESTION FROM: Pewdi Pie12 | 2 years ago BY: Pewdi Pie12
Graphics and Visualization , Mathematics , Wolfram Language
4
REPLIES
3.3K
VIEWS

Commands to compute Einstein's Tensor and stress energy tensor

QUESTION FROM: PRASHANT VIRAT | 2 years ago BY: Dean Gladish
Calculus , Mathematics , Physics , Wolfram Language
2
REPLIES
4.5K
VIEWS

Conditional expectation of variable drawn from uniform distribution with different domains

QUESTION FROM: Anne Shirley | 2 years ago BY: Anne Shirley
Calculus , Economics , Mathematics
2
REPLIES
3.3K
VIEWS

What is your experience of reporting a bug in Mathematica?

QUESTION FROM: Peter Kwok | 2 years ago BY: Peter Kwok
Mathematica , Mathematics , Wolfram Language
5
REPLIES
4.4K
VIEWS

Comparing two plotted results

QUESTION FROM: Leo Murphy | 2 years ago BY: Leo Murphy
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
2
REPLIES
2.8K
VIEWS

Deriving Cottrell equation using Fick's 2nd law of diffusion

QUESTION FROM: Saurabh Pathak | 2 years ago BY: Saurabh Pathak
Calculus , Mathematics , Wolfram Language
2
REPLIES
3.2K
VIEWS

Suggestion: function for Whittaker's root series formula

QUESTION FROM: Raul Prisacariu | 2 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram|Alpha , Wolfram Language
1
REPLIES
3.5K
VIEWS

Mathmatica pefromance and CPU usage in equation solving

QUESTION FROM: Nima Moini | 2 years ago BY: Nima Moini
Equation Solving , High-Performance Computing , Mathematica , ...
2
REPLIES
2.8K
VIEWS

Finding critical points with NMaximize[] and Solve[] yielding different results query

QUESTION FROM: Byron Alexander | 2 years ago BY: Byron Alexander
Equation Solving , Graphics and Visualization , Optimization , ...
2
REPLIES
3.4K
VIEWS

Maintaining desired denominator during calculations

QUESTION FROM: Tchun Jeeyoung | 2 years ago BY: Michael Rogers
Mathematics , Wolfram Language
4
REPLIES
2.2K
VIEWS

Help using NDSolve for an orbital dynamics problem

QUESTION FROM: Jameel Cathcart | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
2.3K
VIEWS

Getting LaTex output into a Mathematica text cell is not practical, right?

QUESTION FROM: Jay Gourley | 2 years ago BY: Jay Gourley
External Programs and Systems , Mathematica , Mathematics , ...
4
REPLIES
4.2K
VIEWS

How to simplify a fraction?

QUESTION FROM: Jacek Jacek | 2 years ago BY: Eric Rimbey
Mathematics , Wolfram Language
10
REPLIES
5.1K
VIEWS

DSolve not giving me an answer

QUESTION FROM: Henric Larsson | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
7
REPLIES
4K
VIEWS

What would be the right approach to numerically solve improper integral with Bessel function ?

QUESTION FROM: Ishan Nande | 2 years ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Numerical Computation , Wolfram Language
2
REPLIES
2.4K
VIEWS

Solving a system of three fractional order differential equations in the sense of Caputo

QUESTION FROM: Burhanuddin Safi | 2 years ago BY: Burhanuddin Safi
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
2K
VIEWS

How to avoid underflow using Eigensystem for 90x90 matrix with very large numbers?

QUESTION FROM: Panagiotis Andreou | 2 years ago BY: Panagiotis Andreou
Algebra , Mathematics , Wolfram Language
4
REPLIES
3.5K
VIEWS

Iterating SolveValues for a function using For?

QUESTION FROM: Edson Orati | 2 years ago BY: Edson Orati
Equation Solving , Mathematics , Wolfram Language
10
REPLIES
3.1K
VIEWS

Automatic differentiation?

QUESTION FROM: Asim Ansari | 2 years ago BY: William Wright
Mathematics , Numerical Computation , Wolfram Language
1
REPLIES
7K
VIEWS

Algorithm taking longer than expected to evaluate

QUESTION FROM: Bobby Joe Snyder | 2 years ago BY: Bobby Joe Snyder
Mathematics , Wolfram Language
5
REPLIES
5.2K
VIEWS

Delay Differential Equations with variable delay

QUESTION FROM: Richard Jensen | 2 years ago BY: Richard Jensen
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
2.3K
VIEWS

Probability that two correlated Normal random variables have the same sign?

QUESTION FROM: Greg Sternberg | 2 years ago BY: Gianluca Gorni
Mathematics , Statistics and Probability , Wolfram Language
6
REPLIES
7.1K
VIEWS

Can we do fully symbolic matrix calculus in Wolfram Mathematica?

QUESTION FROM: Hashir Omer | 2 years ago BY: Frank Iannarilli
Calculus , Mathematics , Symbolic Computations , Wolfram Language
2
REPLIES
4.5K
VIEWS

Inequality solving warning: not a valid domain

QUESTION FROM: Wan Xin | 2 years ago BY: Bill Nelson
Algebra , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
2.3K
VIEWS
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