Discussions on the COVID-19 pandemic invariably include or turn into the notions of geometric or exponential progression or growth. These are mathematical concepts which many of us would have already ...
For the difference of rock and soil strength on the tunneling face, curved tunneling, and the top-heavy structure of the main machine forming the complex geological structure, the adoption of uniform ...
A minimal surface is the surface of smallest area of all the surfaces bounded by a closed curve in space. Its mean curvature is zero. Minimal surfaces greatly interested a few nineteenth century ...
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