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How to code function whose value depends on conditions?

QUESTION FROM: Ricardo Garcia | 11 years ago BY: Ricardo Garcia
Discrete Mathematics , Mathematica , Mathematics
4
REPLIES
7.6K
VIEWS

Using Phasors in Mathematica (adding Cos[])

QUESTION FROM: Mitchell Sandlin | 11 years ago BY: Hans Milton
Engineering , Mathematica , Mathematics , Wolfram Language
4
REPLIES
15.6K
VIEWS

Why the multiplication between two matrix is wrong?

QUESTION FROM: Juan Gomez | 11 years ago BY: Kay Herbert
Calculus , Mathematica , Mathematics
4
REPLIES
9.8K
VIEWS

How can I calculate row space of a matrix in a finite field?

QUESTION FROM: murat guzeltepe | 11 years ago BY: murat guzeltepe
Mathematics , Wolfram Language
4
REPLIES
6.5K
VIEWS

Why Mathematica Can't Solve this Equation

QUESTION FROM: Songklod Rastapana | 11 years ago BY: Bill Simpson
Equation Solving , Mathematica , Mathematics , Wolfram Language
4
REPLIES
6K
VIEWS

How to show/plot 3D spheres randomly?

QUESTION FROM: Ravi-Praveenkumar Padnaram | 11 years ago BY: Marco Thiel
Mathematica , Mathematics
4
REPLIES
9.1K
VIEWS

Function does not work with Import data from Excel

QUESTION FROM: Chiel Geeraert | 11 years ago BY: Chiel Geeraert
Mathematics
4
REPLIES
6.6K
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

Solution of a general linear system of equations: 4-term n-equations

QUESTION FROM: Srinivasan Anand | 11 years ago BY: Marco Thiel
Algebra , Mathematics , Wolfram Language
4
REPLIES
5.1K
VIEWS

Factoring Cubic Equation With no Calculator?

QUESTION FROM: Hoang-Nam Chu | 11 years ago BY: kis miska
Algebra , Mathematics
4
REPLIES
8.9K
VIEWS

How to find and plot the volume of cross sections?

QUESTION FROM: Matt Jin | 11 years ago BY: S M Blinder
Engineering , Mathematics
4
REPLIES
7.4K
VIEWS

<<>> notation

QUESTION FROM: Jonah Wimer | 11 years ago BY: Jonah Wimer
Mathematics , Physics
4
REPLIES
4.6K
VIEWS

Someone could tell me please do that I'm doing wrong?

QUESTION FROM: Luis Ledesma | 11 years ago BY: Simon Cadrin
Education , Mathematics , Recreation , Wolfram Language
4
REPLIES
9.9K
VIEWS

I am new to Mathematica. Trying to solve a partial differential equation.

QUESTION FROM: Nirmalya Datta | 11 years ago BY: Nirmalya Datta
Education , Mathematics , Mechanical Engineering , ...
4
REPLIES
10.9K
VIEWS

Fourier Transform operation does not agree with Wolfram Mathworld page

QUESTION FROM: James Richardson | 11 years ago BY: James Richardson
Algebra , Calculus , Mathematics , Wolfram Language
4
REPLIES
4.2K
VIEWS

Typing and finding a limit of sum

QUESTION FROM: Kadir Sertcanli | 11 years ago BY: EDITORIAL BOARD
Calculus , Mathematics , Wolfram Language
4
REPLIES
6.4K
VIEWS

Reduce the complexity of a code

QUESTION FROM: Fabio Rondelli | 11 years ago BY: Fabio Rondelli
Mathematics , Tuning and Debugging , Wolfram Language
4
REPLIES
9.7K
VIEWS

Plot command help

QUESTION FROM: ash ash | 11 years ago BY: Frank Kampas
Civil Engineering , Computer Science , Data Science , Education , ...
4
REPLIES
13.2K
VIEWS

Phenomenon in finding "simplest" algebraic numbers

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 11 years ago BY: Udo Krause
Mathematics , Wolfram Language
4
REPLIES
7.4K
VIEWS

Plot Many Points with ListPointPlot3D[]

QUESTION FROM: Greg | 11 years ago BY: Greg
Graphics and Visualization , Mathematica , Mathematics , ...
4
REPLIES
9K
VIEWS

Learning Mathematica

QUESTION FROM: Joe Krishnapillai | 11 years ago BY: Todd Rowland
Mathematica , Mathematics , Wolfram Language
4
REPLIES
14.1K
VIEWS

What happens when trying to sum (I)^k (k^(1/k) - I)

CONTRIBUTED BY: Marvin Ray Burns A.G.S. (cum laude) | 11 years ago BY: Marvin Ray Burns A.G.S. (cum laude)
Mathematics , Wolfram Language
4
REPLIES
10.6K
VIEWS

Help with ManhattanDistance function

QUESTION FROM: Luis Ledesma | 11 years ago BY: Luis Ledesma
Mathematics , Recreation , Wolfram Language
4
REPLIES
8K
VIEWS

Raspberry Pi resources and ideas for children in age range 9 yrs to 14 yrs?

QUESTION FROM: Stuart Bruff | 11 years ago BY: Kyle Keane
Education , Mathematics , Raspberry Pi , Recreation , Wolfram Language
4
REPLIES
30.5K
VIEWS

Regression and predictive analysis

QUESTION FROM: Blessing Okeke | 12 years ago BY: Blessing Okeke
Business Analytics , Data Science , Finance , Mathematica , ...
4
REPLIES
15.1K
VIEWS

Prove this limit

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 12 years ago BY: Udo Krause
Mathematics , Wolfram Language
4
REPLIES
7.5K
VIEWS

array containing random complex numbers

QUESTION FROM: Luis Ledesma | 12 years ago BY: Luis Ledesma
Computer Science , Education , Engineering , Game Development , ...
4
REPLIES
14.1K
VIEWS

Problem with Plot function

QUESTION FROM: Bob Freeman | 12 years ago BY: Gianluca Gorni
Graphics and Visualization , Mathematica , Mathematics
4
REPLIES
12.8K
VIEWS

Limit of a sum in Wolfram|Alpha

QUESTION FROM: Wim Lamotte | 12 years ago BY: Bruce Miller
Calculus , Mathematics , Wolfram|Alpha
4
REPLIES
16.6K
VIEWS

about definite question and releasing Hold

QUESTION FROM: kevin kevin | 12 years ago BY: kevin kevin
Control Systems , Mathematics , Wolfram|Alpha Integration , ...
4
REPLIES
7.3K
VIEWS

How to use do, for, while loops?

QUESTION FROM: Alice Bishop | 12 years ago BY: David Reiss
Mathematica , Mathematics , Wolfram Language
4
REPLIES
25.8K
VIEWS

Piecewise function

QUESTION FROM: Philip Majnooni | 12 years ago BY: David Keith
Aerospace Engineering , Civil Engineering , Control Systems , ...
4
REPLIES
15.6K
VIEWS

Solving y'=y, y(0)=1

QUESTION FROM: David Arnold | 12 years ago BY: David Arnold
Mathematica , Mathematics , Wolfram Language
4
REPLIES
5.8K
VIEWS

solving systems of equations with given initial conditions

QUESTION FROM: dylan keefe | 12 years ago BY: Bill Simpson
Chemistry , Engineering , Mathematics
4
REPLIES
8K
VIEWS

Analysis with more variables

QUESTION FROM: Iris Fox | 12 years ago BY: Jim Baldwin
Mathematica , Mathematics
4
REPLIES
3.8K
VIEWS

How can I create dynamical matrices?

QUESTION FROM: Paolo Di Marco | 12 years ago BY: Daniel Lichtblau
Economics , Mathematica , Mathematics
4
REPLIES
6.4K
VIEWS

Solving two second order ordinary differential equations

QUESTION FROM: anon nanon | 12 years ago BY: Kay Herbert
Mathematics , Physics
4
REPLIES
5.1K
VIEWS

Difference Equation Model: Loan Calculations

QUESTION FROM: Nick Leroux | 12 years ago BY: David Reiss
Equation Solving , Mathematics , Modeling , Wolfram Language
4
REPLIES
6K
VIEWS

How can I gather the results of several computations of a notebook?

QUESTION FROM: Vladimir Korukov | 12 years ago BY: Vladimir Korukov
Mathematica , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
4.3K
VIEWS

How do I make a Symbol Positive?

QUESTION FROM: bob Korsan | 12 years ago BY: bob Korsan
Mathematica , Mathematics , Wolfram Language
4
REPLIES
7.6K
VIEWS

How do I solve a profile interval (statistics)

QUESTION FROM: Casper YC | 12 years ago BY: Casper YC
Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
7.1K
VIEWS

Gauss iteration method-nestlist-stopping criteria

QUESTION FROM: selahittin cinar | 12 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Numerical Computation
4
REPLIES
5.2K
VIEWS

Random rounding in classifier function

CONTRIBUTED BY: Douglas Kubler | 12 years ago BY: Etienne Bernard
Mathematica , Mathematics , Wolfram Language
4
REPLIES
11.2K
VIEWS

Do I need additional packages for this Tutorial?

QUESTION FROM: David Klein | 12 years ago BY: David Klein
Material Sciences , Mathematics , Mechanical Engineering , Physics
4
REPLIES
7.3K
VIEWS

how to connect DLATRAM in System Modeler?

QUESTION FROM: manu gaurav | 12 years ago BY: manu gaurav
Engineering , Mathematics , Modeling , Signal Processing , ...
4
REPLIES
12K
VIEWS

Integration along BSpline

QUESTION FROM: Christopher Purcell | 12 years ago BY: Christopher Purcell
Calculus , Mathematica , Mathematics , Numerical Computation
4
REPLIES
7.2K
VIEWS

problems with ReplaceAll

QUESTION FROM: Mark Turtsinskyi | 12 years ago BY: David Reiss
Mathematics
4
REPLIES
6.1K
VIEWS

atan(y,x) scilab vs. ArcTan[x,y] mathematica

QUESTION FROM: afreeka b | 12 years ago BY: afreeka b
Mathematics
4
REPLIES
15.9K
VIEWS

How do I teach Mathematica that a object is a vector or a matrix?

QUESTION FROM: Anthony DeGance | 12 years ago BY: David G
Business Analytics , Computer Science , Mathematics
4
REPLIES
14.9K
VIEWS

Dirichlet Distribution (in Wolfram Alpha)

QUESTION FROM: Soer Klett | 12 years ago BY: Bruce Miller
Mathematics , Wolfram|Alpha
4
REPLIES
10.5K
VIEWS

Why do i get different outputs for equivalent commands?

QUESTION FROM: Matteo Di Loreto | 12 years ago BY: Matteo Di Loreto
Control Systems , Data Science , Engineering , Mathematics , ...
4
REPLIES
6.4K
VIEWS

Splines, Implementation in Mathematica 10, Help?

QUESTION FROM: Muzahoo jee | 12 years ago BY: Muzahoo jee
Mathematica , Optimization , Mathematics , Wolfram Language
4
REPLIES
5.7K
VIEWS

How would I type the questions into Mathematica.

QUESTION FROM: Justin Ivers | 12 years ago BY: Justin Ivers
Graphics and Visualization , Mathematica , Mathematics , ...
4
REPLIES
7.9K
VIEWS

comment to "Moderation Team"

CONTRIBUTED BY: loise kibe | 12 years ago BY: loise kibe
Mathematics
4
REPLIES
3.3K
VIEWS

Integral not evaluating

QUESTION FROM: Caleb Spires | 12 years ago BY: Daniel Lichtblau
Chemical Engineering , Chemistry , Computer Science , Mathematics , ...
4
REPLIES
10.3K
VIEWS

Convert USD$XYZ/gallon into CAD/L, or vice versa

QUESTION FROM: Red Ryder | 12 years ago BY: Red Ryder
Mathematics , Units , Wolfram|Alpha
4
REPLIES
9.9K
VIEWS

Unable to Find Sequence Continuation or Formula

QUESTION FROM: H K | 12 years ago BY: Marco Thiel
Discrete Mathematics , Mathematics
4
REPLIES
6.9K
VIEWS

Image comparison

QUESTION FROM: rvillalonga | 12 years ago BY: David Reiss
Biological Sciences , Image Processing , Mathematics , ...
4
REPLIES
7K
VIEWS

If $b$ and $c$ are complex constants, can they be real?

QUESTION FROM: John Long | 12 years ago BY: Glenn Carlson
Geometry , Mathematica , Mathematics
4
REPLIES
7.8K
VIEWS

Mathematica data fit problem

QUESTION FROM: emy16t t | 12 years ago BY: david fuhrmeister
Mathematics , Wolfram Language
4
REPLIES
9.4K
VIEWS

simplify a long symbolic expression (sum of fractions)

QUESTION FROM: ver din | 12 years ago BY: Bill Simpson
Mathematica , Mathematics , Wolfram Language
4
REPLIES
5.9K
VIEWS

Help me to resolve this syntax issue

QUESTION FROM: Jaydeep Yadav | 12 years ago BY: Jaydeep Yadav
Equation Solving , Mathematica , Mathematics , Modeling , ...
4
REPLIES
6.6K
VIEWS

How to write the ± (plus/minus character)?

QUESTION FROM: Vincenzo Navarra | 12 years ago BY: Sjoerd de Vries
Mathematics , Wolfram|Alpha
4
REPLIES
58.2K
VIEWS

Computing Triple Integral with Variable Limits of Integration

QUESTION FROM: Julius O | 12 years ago BY: Julius O
Mathematics , Physics
4
REPLIES
6.8K
VIEWS

Filter permutations

QUESTION FROM: Mutatis Mutandis | 12 years ago BY: Mutatis Mutandis
Discrete Mathematics , Mathematica , Mathematics , Wolfram Language
4
REPLIES
7.3K
VIEWS

ComplexExpand, Conjugate, Piecewise - an unexpected result

QUESTION FROM: chong wang | 12 years ago BY: Bruce Miller
Mathematica , Mathematics , Symbolic Computations , Wolfram Language
4
REPLIES
6.1K
VIEWS

Problem with Summation

QUESTION FROM: Simon Baumgarten | 12 years ago BY: David Reiss
Mathematica , Mathematics
4
REPLIES
3.1K
VIEWS

Finding minimum value of function (interval mathematics)

QUESTION FROM: Viktoriya Martynyuk-Lototska | 12 years ago BY: David Keith
Graphics and Visualization , Mathematica , Optimization , Mathematics
4
REPLIES
9.5K
VIEWS

Compare QR Decomposition Results from different Numeric Engines

CONTRIBUTED BY: Shenghui Yang | 12 years ago BY: Daniel Lichtblau
External Programs and Systems , Mathematica , Mathematics , ...
4
REPLIES
9.2K
VIEWS

Binomial question

QUESTION FROM: Den Roussel | 12 years ago BY: Bill Simpson
Mathematics , Wolfram Language
4
REPLIES
3K
VIEWS

How does FindRoot work?

QUESTION FROM: HIGINIO RAMOS | 12 years ago BY: Ilian Gachevski
Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
8.5K
VIEWS

How to convert the Euler formula in trigonometric form

QUESTION FROM: Robert Chen | 12 years ago BY: Robert Chen
Mathematica , Mathematics
4
REPLIES
14.7K
VIEWS

A series evaluation

QUESTION FROM: Victor Moll | 12 years ago BY: David Keith
Mathematica , Mathematics , Symbolic Computations
4
REPLIES
3K
VIEWS

2D-cutting stock problem

QUESTION FROM: Luis Ledesma | 12 years ago BY: Luis Ledesma
Engineering , Mathematics , Wolfram Language
4
REPLIES
10.8K
VIEWS

Wrong Differential Equations solutions?

QUESTION FROM: Pawel Wozniak | 12 years ago BY: Pawel Wozniak
Calculus , Mathematics , Wolfram|Alpha
4
REPLIES
8.2K
VIEWS

How do you plot piecewise functions?

QUESTION FROM: Ben Crain | 12 years ago BY: selahittin cinar
Graphics and Visualization , Mathematica , Mathematics
4
REPLIES
42.6K
VIEWS

Mathematica: A simple example of FindInstance?

QUESTION FROM: Mark Nicholas | 12 years ago BY: Mark Nicholas
Mathematics , Wolfram Language
4
REPLIES
7.7K
VIEWS

Plotting a line in 3 space

QUESTION FROM: Fizixx :) | 12 years ago BY: Fizixx :)
Graphics and Visualization , Mathematica , Mathematics
4
REPLIES
6K
VIEWS

NSolve and Domains / Assumptions

QUESTION FROM: Gernot H | 12 years ago BY: Gernot H
Mathematica , Mathematics
4
REPLIES
11.4K
VIEWS

webMathematica hosting

QUESTION FROM: Bernard Vuilleumier | 12 years ago BY: Sean Clarke
Education , Mathematics , webMathematica
4
REPLIES
13.9K
VIEWS

Finding x-intercepts of epicycloid

QUESTION FROM: Bryan Lettner | 12 years ago BY: David Keith
Equation Solving , Geometry , Mathematica , Mathematics
4
REPLIES
6.8K
VIEWS

Sum over two variables

QUESTION FROM: Ahmed Al-Ali | 12 years ago BY: Ahmed Al-Ali
Calculus , Mathematics , Wolfram|Alpha , Wolfram Language
4
REPLIES
18.6K
VIEWS

Manipulate one time

QUESTION FROM: Luis Ledesma | 12 years ago BY: Sam Carrettie
Augmented and Virtual Realities , Authoring and Publishing , ...
4
REPLIES
22.3K
VIEWS

Help repeatedly solving an algebraic equation with different parameter sets

QUESTION FROM: Barry Mayer | 12 years ago BY: Bill Simpson
Mathematica , Mathematics , Wolfram Language
4
REPLIES
3.6K
VIEWS

Finding a function for the skiing angle from acceleration

QUESTION FROM: Seokin Yeh | 13 years ago BY: Vitaliy Kaurov
Calculus , Equation Solving , Mathematica , Mathematics , Physics , ...
4
REPLIES
14.5K
VIEWS

Implementation of B-tree

QUESTION FROM: badr tiptop | 13 years ago BY: badr tiptop
Computer Science , Data Science , Mathematica , Mathematics
4
REPLIES
10.2K
VIEWS

Problems with system of PDE's

QUESTION FROM: Josh Napolitano | 13 years ago BY: Frank Kampas
Mathematica , Mathematics , Physics
4
REPLIES
4.3K
VIEWS

Error regarding Combinatorca

QUESTION FROM: jyoti pandey | 13 years ago BY: Szabolcs Horvát
Mathematica , Mathematics , Packages
4
REPLIES
10.5K
VIEWS

circle and line

QUESTION FROM: Teoman Ozturk | 13 years ago BY: Teoman Ozturk
Graphics and Visualization , Mathematica , Mathematics
4
REPLIES
6.3K
VIEWS

Is it possible to export to .xlsx with table headings?

QUESTION FROM: Pat Mac | 13 years ago BY: Pat Mac
External Programs and Systems , Import and Export , Mathematics , ...
4
REPLIES
12.3K
VIEWS

Wolfram language understanding

QUESTION FROM: Peter Bischet | 13 years ago BY: Peter Bischet
Mathematica , Mathematics , Wolfram Language
4
REPLIES
9.6K
VIEWS

Interpolation and InterpolationOrder

QUESTION FROM: Ana Squadri | 13 years ago BY: Ana Squadri
Mathematics
4
REPLIES
3.8K
VIEWS

Recursive model, how can I use if statements?

QUESTION FROM: Maria Kay | 13 years ago BY: Maria Kay
Biological Sciences , Mathematica , Mathematics , Wolfram Language
4
REPLIES
9.5K
VIEWS

How would I solve this using Mathematica?

QUESTION FROM: John Smith 3 | 13 years ago BY: Hunter Thompson
Economics , Mathematica , Mathematics
4
REPLIES
11.4K
VIEWS

ISSAC 2014 call for papers

CONTRIBUTED BY: Daniel Lichtblau | 13 years ago BY: Daniel Lichtblau
Computer Science , Mathematics
4
REPLIES
9.2K
VIEWS

How to define inclusions in Mathematica?

QUESTION FROM: J Jesus Rico-Melgoza | 13 years ago BY: J Jesus Rico-Melgoza
Mathematics
4
REPLIES
5.5K
VIEWS

Correlation between events from a set of customers

QUESTION FROM: Erik Sorensen | 13 years ago BY: Erik Sorensen
Mathematica , Mathematics , Statistics and Probability
4
REPLIES
7K
VIEWS

Subsets of maximized length from a sorted list of integers

QUESTION FROM: Todor Latev | 13 years ago BY: Udo Krause
Discrete Mathematics , Mathematica , Mathematics , Wolfram Language
4
REPLIES
9.2K
VIEWS

Periodic piecewise function

QUESTION FROM: Javier Montalt | 13 years ago BY: Javier Montalt
Mathematics , Signal Processing
4
REPLIES
28.3K
VIEWS

Building block matrices so trace works properly

QUESTION FROM: diego pasquier | 13 years ago BY: diego pasquier
Algebra , Mathematica , Mathematics
4
REPLIES
6.2K
VIEWS
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