2-D Riemann sums
thingiverse
Riemann sums are used to approximate a function with two variables. Here, the Monkey saddle function f(x,y) = x^3 - 3xy^2 is used. To adjust the number of divisions or switch to another function, simply edit the top section of the OpenSCAD file.
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With this file you will be able to print 2-D Riemann sums with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 2-D Riemann sums.