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Numeric equation solving, calculus and statistics, precision and accuracy control for numeric computations...

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[?] Define a function using NDSolve?

QUESTION FROM: Richard Edwin | 8 years ago BY: Agate Lancon
Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
7.4K
VIEWS

How can I write a simple program to give several outputs for 2 inputs?

QUESTION FROM: Drew Hammerman | 11 years ago BY: Mirek M
Dynamic Interactivity , Equation Solving , Numerical Computation , ...
3
REPLIES
7.3K
VIEWS

[WSS22] Stability in a Star-Planet-Moon three-body system

CONTRIBUTED BY: Aman Burman | 3 years ago BY: Dean Gladish
Staff Picks , Astronomy , Dynamic Interactivity , ...
5
REPLIES
7.3K
VIEWS

Is there any equivalent command other than NSolve

QUESTION FROM: Kashif Nazar | 10 years ago BY: Frank Kampas
Algebra , Numerical Computation , Wolfram Language
2
REPLIES
7.3K
VIEWS

Plots of solution of second order ODE not for my initial conditions

QUESTION FROM: José D.S. | 12 years ago BY: Jesus Hernandez
Equation Solving , Mathematics , Numerical Computation , Wolfram|Alpha
3
REPLIES
7.3K
VIEWS

Lucky Palindromes: when do prime factors of palindromes make palindromes?

CONTRIBUTED BY: Vitaliy Kaurov | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Data Science , Graphics and Visualization , ...
10
REPLIES
7.3K
VIEWS

How do I tell the Base Conversion Calculator how many digits there are?

QUESTION FROM: Aaron Ingebrigtsen | 11 years ago BY: Aaron Ingebrigtsen
Mathematica , Numerical Computation , Wolfram Language
2
REPLIES
7.3K
VIEWS

Solve ODE's with NDSolve?

QUESTION FROM: B Patel | 8 years ago BY: Glenn Carlson
Equation Solving , Mathematics , Numerical Computation , Physics
3
REPLIES
7.3K
VIEWS

How do I use NDSolve in Manipulate?

QUESTION FROM: Tim Kirkpatrick | 9 years ago BY: Tim Kirkpatrick
Dynamic Interactivity , Equation Solving , Mathematics , ...
2
REPLIES
7.3K
VIEWS

Numerical solution of fourth order differential equation

QUESTION FROM: sergei pronkevich | 11 years ago BY: sergei pronkevich
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
6
REPLIES
7.3K
VIEWS

Solve this equation numerically using "NDSolve"?

QUESTION FROM: Jonas Hamp | 7 years ago BY: Frank Kampas
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
7.3K
VIEWS

Solve the following equation and get one value of the result?

QUESTION FROM: Maha haroon | 6 years ago BY: Maha haroon
Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
7.3K
VIEWS

[?] Get an accurate smooth boundary of the mesh generated by ToElementMesh?

QUESTION FROM: Wilhelm Deng | 8 years ago BY: Wilhelm Deng
Engineering , Geometry , Graphics and Visualization , ...
2
REPLIES
7.2K
VIEWS

Uncovering the mechanical secrets of the squirting cucumber

CONTRIBUTED BY: Derek Moulton | 10 months ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Graphics and Visualization , ...
1
REPLIES
7.2K
VIEWS

How to speed up code with the new compiler?

QUESTION FROM: Erik Mahieu | 3 years ago BY: Erik Mahieu
Compilation , Geometry , High-Performance Computing , ...
5
REPLIES
7.2K
VIEWS

NDSolve inside For loop, reseting conditions after each zero

QUESTION FROM: Anup Singh | 11 years ago BY: Bill Simpson
Numerical Computation , Wolfram Language
3
REPLIES
7.2K
VIEWS

[?] Get hexadecimal representation for a float as a string?

QUESTION FROM: Eduardo Mendes | 6 years ago BY: Daniel Lichtblau
Computer Science , Mathematics , Numerical Computation , ...
7
REPLIES
7.2K
VIEWS

Cumulative definte integral makes kernel run slow

QUESTION FROM: Kaushik Mallick | 9 years ago BY: Kaushik Mallick
Calculus , Optimization , Mathematics , Numerical Computation , ...
5
REPLIES
7.2K
VIEWS

How to program solution of system of recurrence equations

QUESTION FROM: Miguel Olivo-V | 10 years ago
Equation Solving , Mathematica , Optimization , Mathematics , ...
0
REPLIES
7.2K
VIEWS

Find numbers with cubes?

QUESTION FROM: Alexey Podchufarov | 8 years ago BY: Alexey Podchufarov
Algebra , Discrete Mathematics , Mathematics , ...
3
REPLIES
7.2K
VIEWS

Need help optimizing a compiled function.

QUESTION FROM: Jordan Hoffmann | 12 years ago BY: Abdul Dakkak
Optimization , Numerical Computation , Wolfram Language
1
REPLIES
7.2K
VIEWS

How to find the inverse of an InterpolatingFunction?

QUESTION FROM: Aiden G | 3 years ago BY: Eric Smith
Equation Solving , Graphics and Visualization , Modeling , ...
8
REPLIES
7.2K
VIEWS

Using conditional expression in summation

QUESTION FROM: Michael Morami | 5 years ago BY: Richard Frost
Mathematics , Numerical Computation , Wolfram Language
12
REPLIES
7.2K
VIEWS

Can MMA confirm the 'Largest Prime'?

QUESTION FROM: David Mackay | 9 years ago BY: David Mackay
Discrete Mathematics , Mathematics , Numerical Computation
3
REPLIES
7.2K
VIEWS

Optimize search for rational numbers on unit circle?

QUESTION FROM: Vitaliy Kaurov | 2 years ago BY: Jari Kirma
High-Performance Computing , Mathematics , Numerical Computation , ...
11
REPLIES
7.1K
VIEWS

NDSolve Finite Elements in coordinate systems other than cartesian {x,y,z}?

QUESTION FROM: Evgeniy Evtushenko | 9 years ago BY: Evgeniy Evtushenko
Calculus , Equation Solving , Mathematics , Modeling , ...
3
REPLIES
7.1K
VIEWS

[WSRP24] Optimization of the thrust to power consumption ratio of Ion thrusters through simulations

CONTRIBUTED BY: Ethan Kong | 1 year ago BY: EDITORIAL BOARD
Staff Picks , Data Science , Engineering , ...
3
REPLIES
7.1K
VIEWS

Can't work with interim answer of variable length

QUESTION FROM: Alexey Podchufarov | 10 years ago BY: Sean Clarke
Data Science , Discrete Mathematics , Import and Export , ...
1
REPLIES
7.1K
VIEWS

Parametric Plotting A Numerical Solution to a Set of 4 Differential Eq's

QUESTION FROM: John Thacher | 11 years ago BY: John Thacher
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
2
REPLIES
7.1K
VIEWS

A geometric multigrid solver for Mathematica?

CONTRIBUTED BY: Henrik Schumacher | 7 years ago
Equation Solving , Geometry , Know-How , Optimization , Mathematics , ...
0
REPLIES
7.1K
VIEWS

Plot one dependent variable against another?

QUESTION FROM: Kaushik Mallick | 9 years ago BY: Kaushik Mallick
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
7.1K
VIEWS

How to use the Finite elements method with Mathematica?

QUESTION FROM: Olivier Lemarchand | 11 years ago BY: Olivier Lemarchand
Calculus , Equation Solving , Numerical Computation , Wolfram Language
2
REPLIES
7.1K
VIEWS

PID (Proportional–integral–derivative) controller of a heater in a house

CONTRIBUTED BY: Sangdon Lee | 3 years ago BY: Sangdon Lee
Staff Picks , Control Systems , Engineering , Equation Solving , ...
6
REPLIES
7.1K
VIEWS

Get a more precise number of this formula with W|A?

QUESTION FROM: Michael Przybylski | 7 years ago BY: Michael Przybylski
Mathematics , Numerical Computation , Physics , Wolfram|Alpha
4
REPLIES
7.1K
VIEWS

SEI2HR model with quarantine scenarios

CONTRIBUTED BY: Anton Antonov | 5 years ago
Architecture , Biological Sciences , Equation Solving , ...
0
REPLIES
7.1K
VIEWS

Compute sums containing Clebsch Gordan coefficients?

QUESTION FROM: Robert Poenaru | 6 years ago BY: Sjoerd Smit
Mathematics , Numerical Computation , Physics , Wolfram Language
1
REPLIES
7.1K
VIEWS

Compute the spatiotemporal temperature distribution of a liquid droplet?

QUESTION FROM: Zuhaib Nissar | 6 years ago BY: Zuhaib Nissar
Algebra , Calculus , Engineering , Mathematics , Modeling , ...
2
REPLIES
7.1K
VIEWS

Optimization of Matrix-valued function

QUESTION FROM: Usman Rauf | 11 years ago BY: Usman Rauf
Mathematica , Optimization , Numerical Computation , Wolfram Language
4
REPLIES
7.1K
VIEWS

Solve second order stiff ODE with boundary conditions?

QUESTION FROM: satoru none | 9 years ago BY: Hans Dolhaine
Equation Solving , Mathematics , Numerical Computation , ...
10
REPLIES
7K
VIEWS

How rare is it for a sparse rectangular matrix to have an exact solution?

QUESTION FROM: Douglas Youvan | 11 years ago BY: Douglas Youvan
Algebra , Discrete Mathematics , Equation Solving , ...
3
REPLIES
7K
VIEWS

Solve two simultaneous differential equations using W|A?

QUESTION FROM: Ernst Hoinkis | 5 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Numerical Computation , Wolfram|Alpha
9
REPLIES
7K
VIEWS

Numerical anomalies in a minimax algorithm

QUESTION FROM: David Eberly | 7 years ago BY: Daniel Lichtblau
Graphics and Visualization , Mathematica , Optimization , ...
7
REPLIES
7K
VIEWS

FunctionPeriod don't work with PowerModList?

QUESTION FROM: Alexey Podchufarov | 10 years ago BY: Alexey Podchufarov
Calculus , Mathematica , Mathematics , Numerical Computation
2
REPLIES
7K
VIEWS

Enhancing aircraft handling with stability augmentation using LQR

CONTRIBUTED BY: Maher Kuzbari | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Aerospace Engineering , Control Systems , Engineering , ...
3
REPLIES
7K
VIEWS

Method for unique collisions between 2 subdivided ellipsoids

QUESTION FROM: Michel Van de gaer | 11 years ago BY: Michel Van de gaer
Game Development , Geometry , Graphics and Visualization , ...
1
REPLIES
7K
VIEWS

NSolve with conditions on complex solutions

QUESTION FROM: Mariam Tohari | 5 years ago BY: Mariam Tohari
Equation Solving , Mathematics , Numerical Computation , Optics , ...
4
REPLIES
7K
VIEWS

Lagrangian mechanics of 2D rolling body

CONTRIBUTED BY: Emmy Blumenthal | 2 years ago BY: Sander Huisman
Staff Picks , Engineering , Geometry , Graphics and Visualization , ...
2
REPLIES
7K
VIEWS

Limits of Mathematica's numeric precision?

QUESTION FROM: Leon Fairbanks | 4 years ago BY: Gianluca Gorni
Algebra , Mathematica , Mathematics , Numerical Computation , ...
5
REPLIES
7K
VIEWS

Bohmian mechanics and the role of curvilinear coordinate systems

CONTRIBUTED BY: Klaus von Bloh | 5 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Graphics and Visualization , ...
1
REPLIES
7K
VIEWS

Find a function with a known gradient?

QUESTION FROM: Meryem Aslı | 5 years ago BY: Meryem Aslı
Algebra , Calculus , Equation Solving , Geometry , Mathematics , ...
6
REPLIES
7K
VIEWS

ListInterpolation help?

QUESTION FROM: Paul Reiser | 11 years ago BY: Paul Reiser
Data Science , Mathematica , Numerical Computation , Wolfram Language
4
REPLIES
7K
VIEWS

Algorithm Input, and waveform manipulation.

QUESTION FROM: richard Rosendorff | 11 years ago BY: Sean Clarke
Earth Science , Mathematica , Numerical Computation , ...
1
REPLIES
7K
VIEWS

Solve system of non-linear differential-algebraic equations using NDSolve?

QUESTION FROM: Kirtan Bhatt | 6 years ago BY: Daniel Lichtblau
Calculus , Control Systems , Equation Solving , Mathematics , ...
1
REPLIES
7K
VIEWS

Deriving formulas for pretty 3D polygons

CONTRIBUTED BY: Tom Verhoeff | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Equation Solving , Geometry , ...
1
REPLIES
7K
VIEWS

Implicit Definition of a Cube -vs- built in Cuboid function

QUESTION FROM: Michael Person | 9 years ago BY: Michael Person
Equation Solving , Geometry , Graphics and Visualization , ...
5
REPLIES
7K
VIEWS

Different speed of numerical integration in Mathematica 6 and 9?

QUESTION FROM: Vladimir Ivanov | 9 years ago BY: Vladimir Ivanov
Mathematica , Mathematics , Numerical Computation , Wolfram Language
2
REPLIES
7K
VIEWS

Fit a recursive function?

QUESTION FROM: s.rupp | 9 years ago BY: s.rupp
Mathematics , Numerical Computation , Physics , Wolfram Language
5
REPLIES
7K
VIEWS

Probability of normal variable and its standardized version different?

QUESTION FROM: Ruben Garcia Berasategui | 6 years ago BY: Ruben Garcia Berasategui
Mathematics , Numerical Computation , Statistics and Probability , ...
2
REPLIES
7K
VIEWS

Rationalize NonlinearModelFit

CONTRIBUTED BY: Thales Fernandes | 8 years ago BY: Jim Baldwin
Computer Science , Mathematics , Modeling , Numerical Computation , ...
1
REPLIES
6.9K
VIEWS

Display a progress bar or view progress of your evaluation?

QUESTION FROM: Ahmed Imran | 8 years ago BY: Sander Huisman
Mathematica , Mathematics , Numerical Computation , User Interface , ...
1
REPLIES
6.9K
VIEWS

An interesting property of AlgebraicNumber

CONTRIBUTED BY: John Doty | 10 years ago BY: John Doty
Algebra , Mathematica , Numerical Computation
2
REPLIES
6.9K
VIEWS

Problem solving coupled PDEs with NDSolve

QUESTION FROM: Manu Kalia | 10 years ago BY: Kay Herbert
Equation Solving , Mathematica , Numerical Computation
1
REPLIES
6.9K
VIEWS

An approximation to Viswanath's constant

CONTRIBUTED BY: Marvin Ray Burns A.G.S. (cum laude) | 9 years ago BY: Marvin Ray Burns A.G.S. (cum laude)
Mathematics , Numerical Computation , Wolfram|Alpha
1
REPLIES
6.9K
VIEWS

Why does the author add ` backtick on the number?

QUESTION FROM: steve ma | 10 years ago BY: Bill Simpson
Numerical Computation , Wolfram Language
1
REPLIES
6.9K
VIEWS

Get a simplified result from PDE with NDSolve?

QUESTION FROM: Ser Man | 7 years ago BY: Alexander Trounev
Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
6.9K
VIEWS

How to color a ListLinePlot plot with derivative values?

QUESTION FROM: jose muñoz | 12 years ago BY: Vitaliy Kaurov
Data Science , Graphics and Visualization , Mathematica , ...
3
REPLIES
6.9K
VIEWS

The EulerGamma*Log[2] - Log[2]^2/2 and 5 (Log[Pi] - Log[2]) Problems

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 9 years ago BY: Marvin Ray Burns A.G.S. (cum laude)
Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
6.9K
VIEWS

Are there any alternatives for Piecewise?

QUESTION FROM: Quim iguaz | 5 years ago BY: Quim iguaz
Equation Solving , Mathematics , Numerical Computation , Physics , ...
4
REPLIES
6.9K
VIEWS

Can interpolating functions be used in NMinimize constraints?

QUESTION FROM: Frank Kampas | 7 years ago BY: Frank Kampas
Optimization , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
6.9K
VIEWS

Questions about NDSolve with Dirichlet/Neumann bcs and direct formulations

QUESTION FROM: Lars Ulke-Winter | 5 years ago BY: Lars Ulke-Winter
Calculus , Engineering , Equation Solving , Mathematica , ...
2
REPLIES
6.9K
VIEWS

NMinimize: community-sourced examples to extend documentation

CONTRIBUTED BY: W. Craig Carter | 3 years ago BY: W. Craig Carter
Staff Picks , Graphics and Visualization , Optimization , ...
2
REPLIES
6.9K
VIEWS

Exploring the gender gap in the labor market: an evolutionary approach

CONTRIBUTED BY: Jorge Zazueta | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Dynamic Interactivity , Economics , Equation Solving , ...
1
REPLIES
6.9K
VIEWS

Mathematica 8 - problem with NDSolve function for differential equation

QUESTION FROM: Jacek Michalski | 10 years ago BY: Kay Herbert
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
8
REPLIES
6.8K
VIEWS

Solving the Fisher-KPP equation with NDSolve and Method of lines/NDSolve

QUESTION FROM: William Schacht | 11 years ago BY: Sam Carrettie
Calculus , Numerical Computation , Wolfram Language
1
REPLIES
6.8K
VIEWS

NDSolve problem: different results with different time integration

QUESTION FROM: luca civati | 11 years ago
Aerospace Engineering , Civil Engineering , Engineering , ...
0
REPLIES
6.8K
VIEWS

Please let me know why Mathematica gives error message!

QUESTION FROM: Changsoo Lee | 10 years ago BY: Changsoo Lee
Equation Solving , Numerical Computation , Wolfram Language
4
REPLIES
6.8K
VIEWS

[WSS23] Developing a variational quantum eigensolver

CONTRIBUTED BY: Arielle Sanford | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Graphics and Visualization , Optimization , ...
1
REPLIES
6.8K
VIEWS

Index an arbitrary array in NDSolve to simulate white noise?

QUESTION FROM: Sandip Roy | 7 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
6.8K
VIEWS

Some ideas for a next gen Wolfram Language

QUESTION FROM: flyredeagle flyredeagle | 4 years ago BY: Brad Klee
Algebra , Equation Solving , Mathematica , Numerical Computation , ...
1
REPLIES
6.8K
VIEWS

LogLogPlot errors

QUESTION FROM: Leos Pohl | 10 years ago BY: Shenghui Yang
Graphics and Visualization , Mathematica , Numerical Computation
3
REPLIES
6.8K
VIEWS

Mnemonic conversion between kilometers and miles using Fibonacci ratios

CONTRIBUTED BY: Bill Gosper | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Mathematics , ...
1
REPLIES
6.8K
VIEWS

Fix this numerical analysis approach for Newton's gravity equation?

QUESTION FROM: Joshua Champion | 6 years ago BY: Neil Singer
Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
6.8K
VIEWS

Dynamic model for world population prediction

CONTRIBUTED BY: Sangdon Lee | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Data Science , Dynamic Interactivity , ...
1
REPLIES
6.8K
VIEWS

On the use of WhenEvent[]

QUESTION FROM: J Jesus Rico-Melgoza | 4 years ago BY: J Jesus Rico-Melgoza
Control Systems , Equation Solving , Logic and Boolean Algebra , ...
2
REPLIES
6.8K
VIEWS

Solve a system of 5 linear & non-linear equations

QUESTION FROM: Christos Papahristodoulou | 6 years ago BY: Christos Papahristodoulou
Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
6.8K
VIEWS

Find error in "NDsolve"

QUESTION FROM: Lina Lili | 5 years ago BY: Hans Dolhaine
Control Systems , Equation Solving , Mathematics , ...
4
REPLIES
6.8K
VIEWS

Speed up evaluation of this integral?

QUESTION FROM: tom ri | 7 years ago BY: Alexander Trounev
Calculus , Mathematics , Numerical Computation , Physics , ...
3
REPLIES
6.8K
VIEWS

Set Precision- digits and rationals?

QUESTION FROM: Zhehao Zhang | 7 years ago BY: Zhehao Zhang
Calculus , Mathematica , Mathematics , Numerical Computation , ...
2
REPLIES
6.8K
VIEWS

Integration along BSpline

QUESTION FROM: Christopher Purcell | 11 years ago BY: Christopher Purcell
Calculus , Mathematica , Mathematics , Numerical Computation
4
REPLIES
6.8K
VIEWS

Compute the following integral with NIntegrate?

QUESTION FROM: S. Gallagher | 7 years ago BY: Michael Rogers
Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
6.7K
VIEWS

Plot the first terms of Taylor series of the below function?

QUESTION FROM: Rafik zeraoulia | 6 years ago BY: Claudio Chaib
Calculus , Graphics and Visualization , Mathematics , ...
2
REPLIES
6.7K
VIEWS

Suggest NDSolve Method options when argument contains InverseFunction?

QUESTION FROM: Mervin Hanson | 9 years ago BY: Mervin Hanson
Equation Solving , Graphics and Visualization , ...
6
REPLIES
6.7K
VIEWS

Efficient way to solve parametric equations?

QUESTION FROM: Julian Stuermer | 11 years ago BY: Updating Name
Equation Solving , Mathematica , Numerical Computation
4
REPLIES
6.7K
VIEWS

How can I assign values to individual matrix locations?

CONTRIBUTED BY: Tommy Volk | 11 years ago BY: Daniel Lichtblau
Discrete Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
6.7K
VIEWS

Solve decoupled PDE's with NDSolve?

QUESTION FROM: Eric Smith | 7 years ago BY: Eric Smith
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
6.7K
VIEWS

NMaximize gets different results on different runs; must Quit and restart

QUESTION FROM: Mauricio Lobos | 12 years ago BY: Mauricio Lobos
Mathematica , Numerical Computation
8
REPLIES
6.7K
VIEWS

How to add step monitor to Nsolve?

QUESTION FROM: ashwin swarup | 12 years ago BY: ashwin swarup
Mathematica , Numerical Computation
10
REPLIES
6.7K
VIEWS

Assembly of an estimator-regulator with an optimal estimator & controller

CONTRIBUTED BY: Maher Kuzbari | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Control Systems , Engineering , Know-How , ...
1
REPLIES
6.7K
VIEWS

Puzzling BitShiftRight behaviour on lists

QUESTION FROM: Berke Durak | 11 years ago BY: Ilian Gachevski
Logic and Boolean Algebra , Mathematica , Numerical Computation
1
REPLIES
6.7K
VIEWS

Sporadic convergence failure: “SingularValueDecomposition::cflsvd”

QUESTION FROM: John Sidles | 8 years ago BY: Kevin Slagle
Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
6.7K
VIEWS
4
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6
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