Sample Files   2021/03/06

 Mantle
PNG
photo
stl
obj
txt
cdy

 Saddle
PNG
html
photo
stl
obj
txt
cdy

 Paraboloid
PNG
obj
txt
cdy

 Hyperboloid 1
PNG
obj
txt
cdy

 Hyperboloid 2
PNG
obj
txt
cdy

 Discontinuous function
PNG
photo
stl
obj
txt
cdy

 Total differentiability
PNG
photo
stl
obj
txt
cdy

 Two cylinders
PNG
stl
obj(outside)
obj(inside)
obj
txt
cdy

 Gaussian integral
PNG
photo
obj
txt
cdy

 Rotate cube
PNG
pdf
zip
stl
obj