import math

print("exp(1.0)", math.exp(1))
print("log(2.78)", math.log(math.e))
print("log10(10,10)", math.log(10, 10))
print("sqrt(4.0)", math.sqrt(4))
print("sin(PI/2)", math.sin(math.pi / 2))
print("cos(PI/2)", math.cos(math.pi / 2))
print("tan(PI/2)", math.tan(math.pi / 2))
print("degrees(1.57)", math.degrees(1.57))
print("radians(90)", math.radians(90))
