import math
print("math.log1p(1) = ", math.log1p(1))
print("math.log1p(0) = ", math.log1p(0))
print("math.log1p(-0) = ", math.log1p(-0))
print("math.log1p(5) = ", math.log1p(5))
print("math.log1p(100) = ", math.log1p(100))
print("math.log1p(125) = ", math.log1p(125))
print("math.log1p(125) / math.log10(5) = ", math.log1p(125) / math.log1p(5))
print("math.log1p(math.pi) = ", math.log1p(math.pi))
print("math.log1p(1000) = ", math.log1p(1000))
print("math.log1p(0.001) = ", math.log1p(0.001))
'''
run:
math.log1p(1) = 0.6931471805599453
math.log1p(0) = 0.0
math.log1p(-0) = 0.0
math.log1p(5) = 1.791759469228055
math.log1p(100) = 4.61512051684126
math.log1p(125) = 4.836281906951478
math.log1p(125) / math.log10(5) = 2.6991803252671502
math.log1p(math.pi) = 1.4210804127942926
math.log1p(1000) = 6.90875477931522
math.log1p(0.001) = 0.0009995003330835331
'''