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Mathematica : Recent Questions and Answers (Page 58)

Find answers to your questions about Mathematica or help others by answering their Mathematica questions.

How can I use Pick to select items in one list when a value in a corresponding list is > some value of another list?

Suppose I have the following lists:dat1 = {{43, 12.0541}, {44, 10.789}, {45, 9.505}};dat2 = {{43, 11.60940}, {44, 10.693}, {45, 9.764}};How can I implement Pick or Select to select from...

Asked on 07/11/2021

2 answer

Why isn't FrameTicks working properly with ListLinePlot?

I wrote this small code to get custom FrameTicksTX[XZ_, YZ_] := Piecewise[{{XZ/YZ, XZ >= YZ}, {1, XZ < YZ}}]s[j_, tl_] := Table[{j i, j i, {0, -tl}, Black},...

Asked on 07/11/2021

1 answer

how to create a new bar chart using the data from the existing barcharts

I have the following code to generate two separate bar charts. I like to create a new bar chart by extracting the data from the following barcharts.bc1 = BarChart[...

Asked on 07/11/2021

1 answer

How to manipulate 2D plots?

When it comes to visual analysis, large datasets or data with intricate internal details often makes plotting in 2D useless, as the outcome is either just a fraction of...

Asked on 07/11/2021

3 answer

Truncating a TimelinePlot?

I have a very large TimelinePlot dataset that extends months out into the future (it is being used as a milestone timeline, similar to a Gantt chart)....

Asked on 07/10/2021

0 answer

How to determine the frequency of oscillations in system of three ODEs?

I want to determine the frequency of oscillations in a system of three stiff ODEs (Oregonator model). That model describes a chemical oscillator. I have a slightly...

Asked on 07/10/2021 by ralphjsmit

2 answer

How to ask Mathematica to solve a simple modular equation

What's the most straightforward way to ask Mathematica to find all solutions of an equation like $$3x + 2y + 4z = 0 pmod {11}$$ (for instance), where either...

Asked on 07/10/2021 by Daniel Asimov

2 answer

Resource Recommendations for Mathematica in Theoretical Physics

I know there are a lot of resources available out there for learning Wolfram Language. However, I would like to create a specific query here (which might lead to a...

Asked on 07/10/2021 by quirkyquark

2 answer

Solving a transcendental equation with some parameters

I'm trying to solve a transcendental equation:NSolve[ a (1/2 (a Sqrt[1 - a^4/b^4 - a^2/b^2] + (b^2 ArcSin[(a...

Asked on 07/10/2021 by Hongyi Huang

0 answer

Replicating off-the-shelf ODE solvers

I've been working through some literature on ODEs and keep coming across the below pseudo-code expression and am having trouble interpreting it for use in the Wolfram Language. I feel...

Asked on 07/09/2021

0 answer

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