Magnetic Field of Bar Magnet

Version 1.01 (538 KB) by Duncan Carlsmith
Calculates the magnetic field in an air gap between poles tips of long uniformly magnetized cylinders.
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Updated 9 Feb 2026

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Calculates the magnetic field in an air gap between poles tips of long uniformly magnetized cylinders numerically using a monopole surface charge density approach and compares to a point-like magnetic monopole approximation.

Cite As

Duncan Carlsmith (2026). Magnetic Field of Bar Magnet (https://www.mathworks.com/matlabcentral/fileexchange/108009-magnetic-field-of-bar-magnet), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2021b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.01

Added interactive_examples tag
1.0.2

Spell check
1.0.1

Added a visualization.
1.0.0