CODEWITHSUNDEEP
pythonpython-3.xpython-3.8
Ankur Sarkar
Ankur Sarkar

Reputation: 1

Need help in Python multiplication

I'm new to python and need your help in this issue. Tried looking everywhere but didn't find any working solution.

My code is:

a=input("Enter a number : ")
b=10
c=a*b
print("Multiply =",c)

The output I'm getting for a=2 is:

Multiply = 2222222222

I want it to print Multiply = 20 but instead it is printing 10 times the digit 1, but I want the product. How do i solve this?

Upvotes: 0

Views: 150

Answers (6)

The_Third_Eye
The_Third_Eye

Reputation: 183

Remember in python input() function always returns string so when you need any certain data type as your input type cast accordingly, Here are few Examples

x = int(input()) # input 20 

print(x)  -> prints 20 

x = float(input()) # input 50 
 
print(x)  -> prints 50.0

x = list(map(int, input().split(' '))) # input 20 30 40 as integer 

print(x)  -> prints list [20, 30, 40]

so the solution for your question is:
 
a=int(input("Enter a number : "))
b=10
c=a*b
print("Multiply =",c)

Upvotes: 0

shaongit
shaongit

Reputation: 56

Input takes string. So first of all convert it to integer by calling int() function

a = int(input("Enter a number : "))
b = 10
c = a*b
print("Multiply =",c)

Upvotes: 0

ihyyaA
ihyyaA

Reputation: 25

You Can Use float to add integer or float as input.

print("Multiply =", float(input("Enter a number : "))*10)

int1: 5
int2: 5.5
out1: 50.0
out2: 55.0

Or:

print("Multiply =", int(float(input("Enter a number : "))*10))

int1: 5
int2: 5.5
out1: 50
out2: 55

Upvotes: 0

LaytonGB
LaytonGB

Reputation: 1404

You need to convert the input to an integer using something like int(input("Enter a number : ")) but if the input is not an integer that will cause issues.

To make sure the input is a string I recommend something like this:

while True:
    a = input("Enter a number : ")
    if a.isnumeric():
        a = int(a)
        break
    print("You did not input a number.")
    
b = 10
c = a * b
print("Multiply =",c)

This will loop until the user gives a number.

Upvotes: 0

Buddy Bob
Buddy Bob

Reputation: 5889

You can't multiply a string. I like to think of it as 10*'word'. Possible but won't get you an output.

a=int(input("Enter a number : "))
b=10
c=a*b
print("Multiply =",c)

Take an int input.

Upvotes: 1

QWERTYL
QWERTYL

Reputation: 1373

By default, input() returns a string. Using

a = int(input("Enter a number: "))

Should work.

Upvotes: 2

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