# abs()
abs(-5)
abs(-5.0)
abs(Decimal(-5))
abs(Fraction(-5, 1))
abs(complex(0, -5))


# round()
round(0.2812, 3)
round(0.625, 1)
round(1.5)
round(2.5) # rounding is towards even numbers
round(Decimal('3.25'), 1)
round(Fraction(57, 100), 2)
round(Fraction(57, 100), 1)
round(Fraction(57, 100), 0)
round(2.675, 2) 


# Base conversions
0b101010
0o52
0x2a
bin(42)
oct(42)
hex(42)
hex(42)[2:]

int("2a", base=16)
int("acghd", base=18)
int("0b111000", base=2)
int("0o664", base=0)
