Find the number of points (x,y) in square lattice with x^2 + y^2 =< n. This is related to Jame's Problem 1387. Here you have to find the number of points within a circle.
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Stuff the Board
Convert a vector into a number
Chebyshev polynomials of the 1st Kind
Periodic Table 101.
Fahrenheit to Celsius converter
Basic arrays operations.
Celsius to Fahrenheit converter
Celsius to Kelvin
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