import math
print("math.lgamma(0.9) = ", math.lgamma(0.9))
print("math.lgamma(10) = ", math.lgamma(10))
print("math.lgamma(0.5) = ", math.lgamma(0.5))
print("math.lgamma(1) = ", math.lgamma(1))
'''
run:
math.lgamma(0.9) = 0.0663762397347431
math.lgamma(10) = 12.801827480081467
math.lgamma(0.5) = 0.5723649429247004
math.lgamma(1) = 0.0
'''