from math import sin, cos, pi print(sin(pi/2)) # 1.0 print(cos(pi/2)) # 6.123233995736766e-17 The actual methods by which sin and cos are calculated are rather complicated (I’ll return to this in ...

(I have no idea why POLYNOMIAL is defined in terms of POLYNOMIAL2 in this way. Neither is used anywhere else in the file.) and these numbers are close to, but not the nearest floats to, the ...