Heat Flow

A simulation of the heat equation in 1 space dimension. The user can enter his/her own initial condition, or choose one from a drop-down menu. The Fourier coefficients of the initial condition are approximated through a discrete Fourier transform (DFT) and the solution is computed by separation of variables. [b]Technical comment:[/b] The DFT and its inverse are computed in JavaScript (directly from the definition: no FFT!). The same result could be achieved (in an even simpler way) by using list commands...but the resulting applet is slow as hell on tablets and phones!

 

Sisto Baldo

 
Material Type
Activity
Tags
pdes  heat  equation 
Target Group (Age)
19+
Language
English (United States)
 
 
GeoGebra version
4.4
Views
1506
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