import math

x, d, q, n = 0.3, -0.01, 1.1, 2

a = (1 / 5) * math.atan(x)
y = 0
if a == 2 or a == 3:
    y = d ** 2 * x ** 3 + q * x ** 2 - n
elif (a > 0 and a < 0.1) or a == 1:
    y = math.sqrt(math.fabs(d * x)) * math.sin(x)
else:
    y = math.exp(x - n) * math.log1p(math.fabs(x))