Brilliant figures such as Sergey Nikitovich Mergelyan (1928-2008) defined the 20th century as an era for extraordinary ...
Pi Approximation Day 2025: Pi is a special number in mathematics. It shows the relationship between a circle’s circumference (the distance around the circle) and its diameter (the distance across the ...
Journal of Computational Mathematics, Vol. 20, No. 3 (May 2002), pp. 277-288 (12 pages) Some superapproximation and ultra-approximation properties in function, gradient and two-order derivative ...
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