[Scilab-users] Triple integral (int3d) query

[Samuel Gougeon]

Hello Lester,

Le 01/01/2021 à 09:16, arctica1963 a écrit :
> Hello all,
>
> I have worked out a simpler input for 2D integration with a function that
> calls int2d:
>
> function [Integral, error]=Integral_2d(xmin,xmax,ymin,ymax,f)
>      X=[xmin xmax xmax; xmin xmax xmin]'
>      Y=[ymin ymin ymax; ymin ymax ymax]'
>      [Integral, error]=int2d(X,Y,f)
> endfunction
>
> This simplifies the issue for triangulation and only needs the x, y limits
> and function to integrate; tested with the int2d example and works fine.
>
> Is it feasible to use the same methodology for int3d - triple integral - for
> defining the tetrahedron vertices? Really all one wants to do is enter the
> limits of x, y and z, with a function f(x,y,z).
>
> Any suggestions would be welcome


With Scilab *6.0.2* you can install the CGLAB toolbox 
*atomsInstall("cglab")*. Then its *delaunay_3()* function will yield 
tetrahedrons required by int3d(). An intermediate step might be required 
to specify tetrahedrons in the way that int3d() expects.

Best wishes and Happy New Year 2021 to you, and to all Scilab users!

Samuel

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