Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with equation-solving
Search options not deleted
user 63584
Questions on the analytic and numerical equation solving functions of Mathematica (Solve, Reduce, NSolve, FindRoot, DSolve, RSolve, etc.).
1
vote
Accepted
How to assign the roots of transcendental equation into an equation
Note that when you compute roots, you don't make any assignments to α[n]. That means that, if it just sees α[n] by itself, Mathematica doesn't know anything about which α[n] gets assigned to which val …
- 9,080
2
votes
0
answers
43
views
Superfluous un-simplifiable condition returned by Reduce
No real "problem" here, just wondering why this is happening and how one might force Mathematica to simplify this. Consider:
Reduce[(-1)^n == 1, n \[Element] Reals]
(* Out: (C[1] \[Element] Integers …
- 9,080
8
votes
Accepted
Determination of a Function
This is actually a tiny bit tricky as far as I'm aware, in that there's not a built-in syntax that "just does it"! Maybe someone's aware of a way Mathematica can easily solve for symbolic functions li …
- 9,080
2
votes
Accepted
How to visualize a Lagrange problem with Mathematica?
It's typically useful in Mathematica to translate mathematical notation of the form $x_i$ into x[i]. If you do that with \[Sigma][i] (which looks much better in a Mathematica notebook!), we could defi …
- 9,080
1
vote
Plotting equation with some unknown parameters
In this particular case, you can view the solution set in the $z,m_0$ plane (i.e. allowing $m_0$ to vary) with ContourPlot:
z0 = 4.8;
ContourPlot[
Tan[z] == Sqrt[(1/(2 m0)) (z0/z)^2 - 1], {z, -5, 5} …
- 9,080
3
votes
Accepted
How to get Sum of array of integers?
A couple things:
Mathematica generally doesn't require you to initialize arrays before constructing them or anything like that; you can just construct them! Array[A, 3] does not give any definitions …
- 9,080
2
votes
0
answers
49
views
What sorts of expressions can be Solve'd for?
We can Solve for expressions that match _Symbol, as in Solve[x^2+1 == 0, x]—but we can also solve for more general expressions, such as x[1] (Solve[x[1]^2+1 == 0, x[1]]) and Subscripts (Solve[Subscrip …
- 9,080
1
vote
Elimination of the variables
Ok, I'm not sure why, but after rationalizing your equations, performing the elimination in sequence seemed to work:
y = [email protected];
x = [email protected];
n0 = 0;
n1 = 1;
gE0 = 1/g0 -
Sqrt …
- 9,080