Converting a float value to an int is done by Type conversion, which is an explicit method of converting an operand to a specific type. However, it is to be noted that such type of conversion may tend to be a lossy one (loss of data). Converting an int value like 2 to floating-point will result in 2.0, such types of
conversion are safe as there would be no loss of data, but converting 3.4 to an int value will result in 3 leading to a lossy conversion. Show Input: 3.3 Output: 3 Input: 5.99 Output: 5 Method 1: Conversion using int(): To convert a float value to int we make use of the built-in int() function, this function trims the values after the decimal point and returns only the integer/whole number part.
Example 1: Number of type float is converted to a result of type int. Python3
Output type: float converted value: 9 , type: int Example 2: In most cases the int() function rounds off the result to an integer lesser than or equal to the input, but the behavior is neither definite nor predictable. One such example is shown below. Python3
Method 2: Conversion using math.floor() and math.ceil(). A float value can be converted to an int value no larger than the input by using the math.floor() function, whereas it can also be converted to an int value which is the smallest integer greater than the input using math.ceil() function. The math module is to be imported in order to use these methods.
Example : In the below example conversion from float to int has been achieved using the floor() and ceil() methods, the former returns an int no larger than the input and the latter returns the smallest integer larger than the input. Python3
Output the result using floor() : 5 , type : int the result using ceil() : 6 , type: int Method#3: Conversion using round( ). A float value can be converted to an int value which is closet integer value if does not pass second parameter. In case of equal difference it goes toward larger integer.
Example : In the below example conversion from float to int has been achieved using the round() methods, the former returns an int number which is closest to number. Python3
Output Type : float Original number is : 5.6 Type : int the result using round : 6 Method#4: Conversion using math.trunc( ). A float value can be converted to an int value. In case of negative number it behaves like ceiling function of math library and in case of positive number it behaves like floor function..
Example : In the below example conversion from float to int has been achieved using the math.trunc() methods, the former returns an larger int number which in case of negative number, else in case of positive number return smaller integer number. Python3
Output Type of value : int the result using round : -2 Type of data: int the result using round : 5 Can you convert a float to an int?Since a float is bigger than int, you can convert a float to an int by simply down-casting it e.g. (int) 4.0f will give you integer 4. By the way, you must remember that typecasting just get rid of anything after the decimal point, they don't perform any rounding or flooring operation on the value.
How do you change to int in Python?To convert, or cast, a string to an integer in Python, you use the int() built-in function. The function takes in as a parameter the initial string you want to convert, and returns the integer equivalent of the value you passed. The general syntax looks something like this: int("str") .
How do you change data type in Python?To convert between types, you simply use the type name as a function. There are several built-in functions to perform conversion from one data type to another. These functions return a new object representing the converted value.
How do you convert decimal to int in Python?In Python, you can simply use the bin() function to convert from a decimal value to its corresponding binary value. And similarly, the int() function to convert a binary to its decimal value. The int() function takes as second argument the base of the number to be converted, which is 2 in case of binary numbers.
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