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(linear algebra) positive-semidefinite matrix
A positive-semidefinite matrix is one of the important concepts in linear algebra.
(calculus) Riemann sum
The Riemann sum is a method for approximately calculating the integral of a function.
Air Pollution Control Law
Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.
(computer science) steepest descent method
The steepest descent method is one way to solve optimization problems.
Kyūjitai form of 立方半八面体: cubohemioctahedron
This 立方半八面體 is one of the shapes in geometry.
great icosihemidodecahedron
The great icosihemidodecahedron is a cube with a very complex shape.
Kyūjitai form of 大二十面半十二面体: great icosihemidodecahedron
This is a model of a great icosahemidodecahedron.
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