Advanced Numbers¶

In this lecture we will learn about a few more representations of numbers in Python.

Hexadecimal¶

Using the function hex() you can convert numbers into a hexadecimal format:

In [1]:

hex(246)

Out[1]:

'0xf6'

In [2]:

hex(512)

Out[2]:

'0x200'

Binary¶

Using the function bin() you can convert numbers into their binary format.

In [3]:

bin(1234)

Out[3]:

'0b10011010010'

In [4]:

bin(128)

Out[4]:

'0b10000000'

In [5]:

bin(512)

Out[5]:

'0b1000000000'

Exponentials¶

The function pow() takes two arguments, equivalent to x^y. With three arguments it is equivalent to (x^y)%z, but may be more efficient for long integers.

In [6]:

pow(3,4)

Out[6]:

In [7]:

pow(3,4,5)

Out[7]:

Absolute Value¶

The function abs() returns the absolute value of a number. The argument may be an integer or a floating point number. If the argument is a complex number, its magnitude is returned.

In [8]:

abs(-3.14)

Out[8]:

3.14

In [9]:

abs(3)

Out[9]:

Round¶

The function round() will round a number to a given precision in decimal digits (default 0 digits). It does not convert integers to floats.

In [10]:

round(3,2)

Out[10]:

In [11]:

round(395,-2)

Out[11]:

In [12]:

round(3.1415926535,2)

Out[12]:

3.14

Python has a built-in math library that is also useful to play around with in case you are ever in need of some mathematical operations. Explore the documentation here!