Day 4 of #30daysofML Learning

Below is my learning for Day 4 of #30daysofML

The datatype for boolean in python is 'bool'

Boolean operators are used for comparison

3.0 == 3

'3'== 3

Comparison operators can be combined with the arithmetic operators 

Remember to use == instead of = when making comparisons.

Booleans are most useful when combined with conditional statements like if then else statement

Python has a functions as below:

• int() function  which turns things into ints, 
• float() functon which turns things into floats, 
• bool() function which turns things into bools.
• Calling bool() on an integer returns False if it’s equal to 0 and True otherwise. 
• int(True) is 1, and int(False) is 0.

We can use non-boolean objects in if conditions and other places where a boolean would be expected. Python will implicitly treat them as their corresponding boolean value:

Here is the order of precedence of operators in Python

Operator	Description
(expressions...), [expressions...], {key: value...}, {expressions...}	Binding or parenthesized expression, list display, dictionary display, set display
x[index], x[index:index], x(arguments...), x.attribute	Subscription, slicing, call, attribute reference
await x	Await expression
**	Exponentiation 5
+x, -x, ~x	Positive, negative, bitwise NOT
*, @, /, //, %	Multiplication, matrix multiplication, division, floor division, remainder 6
+, -	Addition and subtraction
<<, >>	Shifts
&	Bitwise AND
^	Bitwise XOR
|	Bitwise OR
in, not in, is, is not, <, <=, >, >=, !=, ==	Comparisons, including membership tests and identity tests
not x	Boolean NOT
and	Boolean AND
or	Boolean OR
if – else	Conditional expression
lambda	Lambda expression
:=	Assignment expression