Why we use double ==sign instead of single = sign.

Question

side1 = int(input())
side2 = int(input())
side3 = int(input())
if side3**2==(side1**2)+(side2**2):
print("Right-angled")
else:
print("Not right-angled")

Answer 1

https://www.sololearn.com/discuss/1084542/?ref=app

= is called assignment operator which assign a value
example: a = 10, here we assign value 10 to variable a

== is to check if equals, if a == b
it means to check if a is equal to b

As this is a duplicate question, please use search bar before posting your question

https://www.sololearn.com/discuss/918660/?ref=app

For reference:
https://www.sololearn.com/learn/JavaScript/1132/

Answer 2

Ali Tarique

Simple answer

single = sign use to assign value like a = 2
double == sign use to check equality like 2==2

And also in some languages there is triple === sign which is use to check equality as well object type. For example 2 === '2' which is return false because 2 is int value and '2' is char value so value can be same but type is different.

Answer 3

single equal sign is used to set value while double equal sign is used to compare values
a = 10 #a is 10
a = 12 #a is 12 now
3 == 4 #false because 3 is not equal to 4
a == 12 #true because a is equal to 12