Calculate the absolute value of a number using Python's abs() function

Use Python's abs() function to calculate the absolute value of a value

The absolute value is the distance between a number and zero. Regardless of whether the number is a positive or negative number, its absolute value The values ​​are all non-negative. In Python, we can use the built-in function abs() to calculate the absolute value of a number. This article will introduce the use of abs() function in detail and give some code examples.

The syntax of the abs() function is as follows:

abs(x)

Among them, x is the value that needs to be calculated as an absolute value.

Here are some examples of using the abs() function:

Example 1: Calculate the absolute value of an integer

num1 = -10
result1 = abs(num1)
print("num1的绝对值为：", result1)

Output result:

num1的绝对值为： 10

In this In the example, we define an integer num1 and assign it a value of -10. Then, we call the abs() function to calculate the absolute value of num1 and assign the result to the variable result1. Finally, we use the print() function to print out the results. As you can see, the output result is 10, because the absolute value of -10 is 10.

Example 2: Calculate the absolute value of a floating point number

num2 = -3.14
result2 = abs(num2)
print("num2的绝对值为：", result2)

Output result:

num2的绝对值为： 3.14

In this example, we define a floating point number num2 and assign it as -3.14. Then, we call the abs() function to calculate the absolute value of num2 and assign the result to the variable result2. Finally, we use the print() function to print out the results. As you can see, the output result is 3.14, because the absolute value of -3.14 is 3.14.

Example 3: Calculate the absolute value of a complex number

num3 = 3 + 4j
result3 = abs(num3)
print("num3的绝对值为：", result3)

Output result:

num3的绝对值为： 5.0

In this example, we define a complex number num3 and assign it the value 3 4j . Then, we call the abs() function to calculate the absolute value of num3 and assign the result to the variable result3. Finally, we use the print() function to print out the results. As you can see, the output result is 5.0, because the absolute value of 3 4j is 5.0.

To sum up, the abs() function is a built-in function in Python for calculating the absolute value of a numerical value. Whether it is an integer, floating point number or complex number, you can use the abs() function to calculate its absolute value. Through the introduction and examples of this article, I believe that readers have a certain understanding of the use of the abs() function. I hope this article will be helpful to everyone in learning and using Python.

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