This is an hourglass simulation.
Updated 8 Jan 2017

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This is an hourglass simulation.
Called without input arguments, it runs forever unless you close the figure. Called with input argument time, it will run once for the given period of time (in seconds).
You can expect more or less correct timing for t>20.
t is arbitrary, but i recommend to chose values between 30s and 600s.

Tillmann Stuebler, Dec 2016

Cite As

Tillmann Stübler (2024). hourglass(time) (https://www.mathworks.com/matlabcentral/fileexchange/60580-hourglass-time), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2016a
Compatible with any release
Platform Compatibility
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Version Published Release Notes

it is now possible to call hourglass with a parameter t to let it run approximately t seconds.
Some modifications in equations of motion, and solver changed from ode45 to ode23.