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Duncan Carlsmith


University of Wisconsin - Madison

Last seen: Today Active since 2022

Followers: 4   Following: 0

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Physics professor active in computational physics education for 1st-year university students.

Programming Languages:
Python, C++, MATLAB, HTML, Fortran
Spoken Languages:
English

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MATLAB Answers

12 Questions
16 Answers

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146 Files

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12 Questions
16 Answers

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75.0%

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5

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1,937 of 21,024

REPUTATION
949

AVERAGE RATING
4.30

CONTRIBUTIONS
146 Files

DOWNLOADS
328

ALL TIME DOWNLOADS
7756

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of 169,635

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  • Thankful Level 3
  • 5-Star Galaxy Level 3
  • 3 Month Streak
  • Personal Best Downloads Level 4
  • GitHub Submissions Level 1
  • First Answer
  • First Submission
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Submitted


Sliding Top Explorer
Live Script exploring a spinning symmetric top sliding with friction.

3 days ago | 3 downloads |

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Submitted


Bound States In A One-Dimensional Coulomb Potential
Live Script computing bound state wave functions and energies of a particle in 1D Coulomb-like potential wells.

10 days ago | 2 downloads |

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Submitted


Lagrangian Mechanics of a Triple Pendulum System
Educational Live Script applying Lagrangian mechanics to a system of physical pendulums to simulate quasi-periodic and chaotic m...

19 days ago | 7 downloads |

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Question


Live Script animation 2025a
The folowing code produces a nice on-time animation when run from the command line. Run as a Live Script, it produces an animati...

26 days ago | 1 answer | 0

1

answer

Submitted


Normal Modes of a System of Masses
Live Script exploring normal modes of four masses densely connected by springs moving in one dimension.

1 month ago | 7 downloads |

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Submitted


Mobile Phone Pendulum Doppler Experiment
Live Script analysis of data from mobile phone pendulum Doppler shift experiment.

1 month ago | 4 downloads |

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Submitted


Relativistic Chaotic Motion Explorer
Live Script exploring chaos in relativistic mechanics with a quartic potential in two dimensions.

1 month ago | 5 downloads |

0.0 / 5
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Question


MATLAB online video creation trouble
The following test code runs in 3 seconds natively with v2025a but stalls and never completes in MATLAB online. Any suggestion a...

1 month ago | 1 answer | 0

1

answer

Submitted


Two-dimensional Newton Cradles
Live Script simulating two-dimensional arrays of colliding pendulums.

1 month ago | 3 downloads |

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Submitted


Relativistic motion in a Coulomb field
Live Script exploring motion of a relativistic particle in an inverse-square law force field.

2 months ago | 2 downloads |

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Submitted


Exact 3D Doppler Effect Explorer
Analytic formulae and simulations of exact Doppler effects for arbitrary motions in 3D.

2 months ago | 2 downloads |

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Submitted


Newton's Cradle Simulation
Live script simulation of various Newton's cradles.

3 months ago | 4 downloads |

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Submitted


Web Scraper with Screenshots
Example web page scraper saving text, images, and screenshots.

3 months ago | 4 downloads |

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Submitted


MicroObservatory Robotic Telescope Explorer
Live Script image processing for Harvard MicroObservatory Robotic Telescope Network images.

3 months ago | 1 download |

0.0 / 5
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Submitted


Saturn moon shape visualizer
Live Script that downloads and visualizes shape models for Saturn's moons.

4 months ago | 1 download |

0.0 / 5
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Submitted


Moon Model Viewer
Live Script and App to view and compare surface models of planetary moons.

4 months ago | 1 download |

0.0 / 5
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Submitted


Pendulum Doppler Effect Theory and Simulation
Live Script simulation of the Doppler effect for a source on the end of a nonlinear pendulum.

4 months ago | 1 download |

0.0 / 5
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Submitted


Skyfield Night Sky Explorer
Live Script illustrating programmatic night-sky simulation and Python integration with Skyfield.

4 months ago | 3 downloads |

0.0 / 5
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Submitted


Two-Dimensional Tetherball Explorer
Live Script exploring a ball wrapping a tether around a pole in two dimensions.

4 months ago | 1 download |

0.0 / 5
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Submitted


Camera View Transformer
Live Script that transforms an image to a new image as seen with a different camera orientation.

4 months ago | 1 download |

0.0 / 5
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Submitted


Instantaneous Frequency Explorer
Live Script exploring methods to estimate the instantaneous frequency of a quasi-harmonic signal.

4 months ago | 2 downloads |

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Submitted


Infrared Science Archive Explorer
Live Script exploring IRSA astronomy images via API.

5 months ago | 3 downloads |

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Submitted


SgrA Black Hole Stellar Orbit Explorer
Live Script illustrating fits to observations of stars orbiting the black hole in the center of the Milky Way.

5 months ago | 2 downloads |

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Submitted


Markov Chain Monte Carlo Stellar Orbit Fit Explorer
Live Script exploring Markov chain Monte Carlo fits to observations of stars orbiting a black hole.

5 months ago | 1 download |

0.0 / 5
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Answered
Why Import data still does not work with CSV files in R2022a ?
I ran into this today and the suggested fixes didn't work. The problem was I had a '*' in an enclosing folder name.

5 months ago | 0

Submitted


Identify Objects Acoustically with a Neural Network
Live Script exploring how to classify objects using their acoustic signatures with a neural network.

5 months ago | 3 downloads |

0.0 / 5
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Answered
How do I freqency shift a signal by a fractional amount using IFFT and FFT?
%% Frequency-Shift Demo with Synthetic Audio % This script creates a 1-s synthetic audio signal consisting of four % sinusoids...

5 months ago | 0

Answered
How do I freqency shift a signal by a fractional amount using IFFT and FFT?
analytic_segment = hilbert(segment); % Complex analytic signal shifted_segment = real(analytic_segment .* exp(1j*2*pi*f_shift*...

5 months ago | 1

Submitted


Acceleration of Gravity using the Doppler Effect
Live Script illustrating how to measure 'g' by dropping your phone.

5 months ago | 2 downloads |

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Submitted


Feedforward Network Explorer
Live Script exploring linear and nonlinear feedforward fully-connected neural networks.

6 months ago | 4 downloads |

0.0 / 5
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