WEBVTT

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Welcome back.

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Now let's do a practice.

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Exercise.

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The task ask the user for two numbers then display their sum.

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So we need to ask the user for two numbers.

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Make the sum and display the result.

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The first step is to pause the video, think about it and write your on your notebook in Google Colab

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and try to run the file by your own.

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I think you solve it well.

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So let me start with step one.

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Get input Num1 equals to input function.

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Enter the first number and num2 equals to input.

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Enter the second number.

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Then we need to calculate the sum total equals to num one plus num two okay.

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The third step is to display the result.

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Here we are going to use print f the formatted string.

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And here set the sum of number one.

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And number two is total okay.

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So I used the concatenation and the formatted string, the Num1 and Num2 is total.

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And here we used the variables to do the arithmetic operation.

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And here we used the input function to get the input from the user.

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Run the cell.

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Enter the first number 55.

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Enter the second number 15 and hit enter.

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The sum of 55 and 15 is this concatenation.

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And this is not true because it's doing a concatenation of strings.

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We didn't convert the strings into integer and do this concatenation.

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So here in order to do that, in order to solve this problem we need to convert it using the integer

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function.

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Integer and surround this variable.

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So here we are converting the number one and number two into integers and store them into the total.

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In order to do this summation again 5515 and the result is 70.

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So I used this exercise in order to clarify the importance of paying attention to the data types.

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So data types are very crucial guys.

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Any miss, any mistake, any error in converting and getting the correct data type you want, the result

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will be wrong.

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So as you see here, we have an error in data types.

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We have concatenation of two strings.

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It gives us 5515.

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And the result the correct result is 70.

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So it was concatenation of strings.

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When we convert them into integers the result becomes true.

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So guys please pay attention.

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This is a very good example.

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It may be very simple, but it it summarizes all the previous concepts and all the tricks that we,

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we have in data types.

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I want from you to write this down and pay attention to data types.

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How to convert between types and how to get input from the user.