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Create sublists whose totals exceed a certain threshold and that are as short as possible

list = {2, 1, 8, 10, 1, 4, 4, 5, 3, 4, 4, 11, 12}; th = 10; It is easy to create sublists whose totals don't exceed th: ...
• 77.9k
1 vote
32 views

Using a pre-rendered image of a plot within a Mathematica Figure

I want to plot new data over data that I only have in the form of a figure in order to be able to make a comparison. Say for example I have only the image (not the original data) produced by (or ...
• 4,591
61 views

Numerical and analytical solutions do not agree

Hi everyone could anyone have look why this code is not running? ...
• 447
52 views

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• 469
46 views

Why there have the difference beween the DirichletCondition and directly given boundary condition

The simulation code (The code) TH = 800; TL = 300; U = 1000; J = 1; [Alpha]p[x_] := 1.483110^-3 - 1.390510^-5 T[x] + 5.396410^-8 (T[x])^2 - 8.808810^-11*(T[x])^3 + 5.061810^-14 (T[x])^4; [Kappa]p[x_]...
86 views

Solving three equations with two unknowns with constant parameters

I have the following two equations: 'r1andr2. Here,n, x, ...
• 514
40 views

Entity Creation

I had a city called "Lavaresque" which is not known by the interpreter. The following command Interpreted["City"]["Lavaresque"] failed ...
• 421
556 views

How to draw a number of circles inscribed in a square so that the sum of the radii of the circle is greatest?

I have a square with length of side is $a$. How to draw a number of circles inscribed in a square so that the sum of the radii of the circle is greatest? In the below picture is six circles inscribed ...
• 3,861
81 views

22 views

Eigen values of a symmetric real valued matrix [closed]

Why does the eigenvalue function not work here? ...
• 514
37 views

Block matrix of arbitrary dimensions

I have a block matrix that has a general form as sketched below: (excuse my handwriting). The dimension of each individual matrix is indicated. The 0_{ixj} are zero matrices of dimension i x j. My ...
132 views
+50

Using mathematica to find the equation of curves, by providing images, providing constraints, or both

By "collaborate", I mean to give some instructions or constraints. Consider the following curves: (as examples, only to illustrate my question in a better way): Curve (I): Assume it is f ...