What is the result of 1 + 2 in python?
In Python, ‘1’ + ‘2’ is equal to ’12’. This is because both ‘1’ and ‘2’ are strings so the + operation adds one string to the end of the other. This is called string concatenation. If you used integers instead, the result would be 3. String concatenation in Python means adding two or more strings together. In this process, one string is added to the end of the other. To concatenate two or more strings, call the + operator on the strings. For instance: Output: The same applies when applying string concatenation to strings that represent numeric values. For example: Output: Now that you understand how string
concatenation works, let’s take a look at a common issue beginners usually face. If you have a program that asks a user for two numbers to sum them up, you may bump into a strange issue: Example run: The result is obviously supposed to be 3, but it is 12. So what is the matter here? This is because the user inputs are strings by default—not numbers as you may assume. To solve
this little problem, convert the strings into numbers. If you want the user to input integers, you can convert the strings to integers using the built-in Here is how to do it: Now the program works as expected. Today you learned what Python string concatenation means why the result of ‘1’+’2′ is equal to ’12’ in Python. To recap, string concatenation adds one string to the end of another. When you ask for
user data in your program, the data is a string by default. But you can convert it to an integer using the int() function. Thanks for reading. Happy coding! Single Quotes vs Double Quotes in Python Strings Python Classes 101 Print(1%2) Output: 1 Why shouldn't be 0 ??? Can someone explain Hey Mohammad Esmail Qasimi. First of all you have to understand the meaning of the % symbol in Python. In mathematics, that symbol is known to be a percentage but in python it is not. It is actually an operator symbol called a modulo operator. Now what does this mean? A modulo operator symbol is one that retains the remainder in an operation. Suppose x%y, this will output the remainder of x divided by y. So in your question, 1%2 simply means that when 1 is divided by 2, what is the remainder. The remainder is 1 because normal division of 1/2 will retain a 0 but remainder of 1. Hope you are answered.
% is the modulo operator, it give the remainder of an integer division. How often does 2 go in one? 0 So what remains? 1
Quite simply, this operator is called modulo which returns the remainder of a division: For instance, 9 divided by 4 equals 2 but it remains 1. Here, 9 / 4 = 2 and 9 % 4 = 1. 👤 🍎🍎🍎🍎 👤 🍎 🍏 🍎 👤 🍎🍎 👤 ______________________ 👤 🍎🍎 🍎🍎 👤 🍏 👤 🍎🍎 🍎🍎 👤 Think of it as if I asked you what's REMAINDER after dividing APPLES by 4 people. That's the purpose of this division process, so there's no need to look at anything other than a GREEN apple. In your example: 1 divided by 2 gives 0 but it remains 1 (1 % 2 == 1) So the modulo operation can be calculated using this equation: =================== a % b = a - floor(a / b) * b =================== ▪️ floor(a / b) represents the number of times you can divide a by b. ▪️ floor(a / b) * b is the amount that was successfully shared entirely. ▪️ The total (a) minus what was shared equals the remainder of the division. Applied to your example, this gives: 1 % 2 = 1 - floor(1/2) * 2 = 1
% is the module operator, it always give the remainder of an division.
Quantum , the remainder is 1. Suppose we have a/b=c. a is the divident b is the divisor c is the quotient And now suppose we have x%y=z. x is the divident y is the divisor z is the remainder. I hope it all makes sense
Hi Mohammad Esmail Qasimi You put it so well... How often 2(divisor) goes into 1(dividend) is 0 (quotient)... 1//2 would return this... 1%2 on the other hand returns the remainder, ergo, 1-0...
Hi Mohammad! 1 % 2 is not 0 because 1 / 2 = 0.5 and 0.5 is not a whole number. If the result of any division isn‘t a whole number then there is a remainder, thats why you have a comma in 0.5. So I give you some examples of Modulo: 7 % 3 means how many 3‘s you have in 7 and what remains: So 7 = 2 * 3 + 1 and what comes after the (+) is the remainder. Therefore 1 is the remainder here. 3 % 4 means how many 4‘s do you have in 3 and what remains: 3 = 0 * 4 + 3 so 3 is the remainder. 1 % 2 means how many 2‘s you have in 1 and what remains: 1 = 0 * 2 + 1 so 1 is the remainder thats why 1 % 2 = 1.
Thanks Mohammad Esmail Qasimi for marking my answer as best, im glad i was of help to you.
Thanks HungryTradie , i think you have put it in the simplest form anyone should be able to understand.
Oh you are going to be stubborn. 😔 New example: You and a friend (= 2 people) want to go to the zoo. You have 1 zoo entry ticket. You try to share 1 between 2 but you can't do it without fractions (or decimals called float). You each get 0 tickets, the remaining tickets are 1. 1%2=1.
You can remember it like this... a%b = a if a
Quantum what likely hood is it that you are right & all these other programmers are wrong? Could it be a chance for you to learn, or are you going to be stubborn (and wrong)? Example using words: you have 7 grapes and 2 friends, you want to give each person an even share, how many are left? 7%3=1 because 7 split into 3 gives 3 groups of 2 with 1 remainder. Could you cut the last grape and share it? Yes, but not without using fractions (or decimals called float in programming), so keeping whole numbers (called integers in programming) is the remainder result of modulo.
🤭 7 % 5 = 2 ✅ Quantum (7/5=1) with 2 remainder. But 5 % 7 = 5 🙃 Manav Roy remainder of (5/7=0) is 5
See if i multiple 2 by 0.5, it's equal to 1 right? So in floats there is an option call round-off. If the number after "." Is greater than or equal to 5 so we remove that number and increase it's left sided number by 1. If i round-off 0.5 that will be equal to 1👍
It's simple, a%2 : 1 if the number is odd else 0 if number is even
2%2 is like the words "what is the remainder of 2 divided by 2" = 0 (no remainder) 1%2 is like the words "what is the remainder of 1 divided by 2" = 1. (because 2 doesn't go into 1, but there is 1 remainder.) Modulo result is the remainder.
Hello team, I am new here. Who is also new here to team up with me.
As you said how often 2 goes to 1 is 0 So the answer should be 0 ??? Sorry if i am dumb Like 3%2 is 1 bcz 2 goes 3 once and the remaining is 1.
Because Modulo (%) gives the remainder
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What does [:: 1 mean in Python?In Python, [::-1] means reversing a string, list, or any iterable with an ordering. For example: hello = "Hello world" nums = [1, 2, 3, 4] print(hello[::-1])
What is %s and %D Python?%s is used as a placeholder for string values you want to inject into a formatted string. %d is used as a placeholder for numeric or decimal values. For example (for python 3) print ('%s is %d years old' % ('Joe', 42)) Would output Joe is 42 years old.
What does 2 == mean in Python?In Python and many other programming languages, a single equal mark is used to assign a value to a variable, whereas two consecutive equal marks is used to check whether 2 expressions give the same value .
What is the value of 5 2 in Python?In Python 3. x, 5 / 2 will return 2.5 and 5 // 2 will return 2 . The former is floating point division, and the latter is floor division, sometimes also called integer division. In Python 2.2 or later in the 2.
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