What is the use of float() function in python

The float() function in Python converts a value to a floating point number. It can receive arguments of different types and try to convert them to floating point numbers. Common uses include: * Convert an integer to a floating point number (such as 5 to 5.0) * Convert a string representing a floating point number to a floating point number (such as "3.14" converted to 3.14) * Convert other types (such as Boolean values) to floating point numbers (True is converted to 1.0, False is converted to 0.0)

In Python, float() function Used to convert a value to a floating point number. It can accept arguments of different types and attempt to convert these arguments to floating point numbers. The following are some common uses of the float() function:

1. Convert an integer to a floating point number:

   num_int = 5num = float(num_int)print(num)  # 输出：5.0

   The float() function can convert an integer to a floating point number type.

2. Convert a string to a floating point number:

   num_str = "3.14"num = float(num_str)print(num)  # 输出：3.14

   The float() function can convert a string representing a floating point number to a floating point number type.

3. Convert other types to floating point numbers:

   bool_val = Truenum = float(bool_val)print(num)  # 输出：1.0

   When converting a Boolean value to a floating point number, True will be converted to 1.0 and False will be converted to 0.0 .

In general, the function of float() function is to convert other types of data into floating point number type. Of course, data type compatibility and possible loss of data accuracy need to be considered when doing conversions.

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