Jul 23, 2021 · In python you have the int() function that has the ability to turn any float number to a integer. Example: x = 53.980 print(int(x))# 53 So if after that conversion you check if the float number is different from the converted integer number you will know if after the decimal point there are any numbers.

Apr 5, 2022 · To repeat what others have said (because I had already typed it out!), I'm not even sure such a value would be meaningful in the case of a floating point number, because of the difference between the decimal and binary representation; often a number representable by a finite number of decimal digits will have only an infinite-digit representation in binary.

Oct 30, 2021 · Python comes with three different methods that let you check if a string is a numeric.In this post, you’ll learn the subtle differences between isdigit, isnumeric, and isdecimal.There are subtle, but important differences between the methods, and knowing them is important to understand which one is best one for the job.

Jul 14, 2017 · The mathematical solution is to convert your decimal number to integer and then test its equality with your number. Since Decimal can have an arbitrary precision, you should not convert it to int or float.. Fortunately, the Decimalclass has a to_integral_value which make the conversion for you. You can adopt a solution like this:

When you use functions from the math module for decimal numbers, Python will cast the Decimal objects to floats before carrying arithmetic operations. This results in losing the precision built in the decimal objects. Summary # Use the Python decimal module when you want to support fast correctly-rounded decimal floating-point arithmetic.

Apr 25, 2025 · The decimal module provides support for fast correctly rounded decimal floating-point arithmetic. It offers several advantages over the float datatype: Decimal “is based on a floating-point model which was designed with people in mind, and necessarily has a paramount guiding principle – computers must provide an arithmetic that works in the same way as the …

Jan 10, 2025 · In this example, 123.456 % 1 returns 0.456, which is the decimal part of the number. Read How to Use the trim() Function in Python?. Method 2. Use the math.modf() Function. The math.modf() function splits a floating-point number into its integer and fractional parts. This function is part of Python’s standard library. import math def …

In this example, we convert the float number 3.14159 to a string using the str() function. Then we use the re.sub() method to replace all the digits before the decimal point with an empty string.. The regular expression 'd+.' matches one or more digits followed by a decimal point. The resulting string is '.14159'.. We get the length of the resulting string to get the number of decimal places ...

Oct 23, 2024 · There are several methods to determine if a number is a decimal in Python. Below are some of the most common approaches: 1. Using the isinstance() Function. The isinstance() function can be used to check if a variable is of a specific type. In Python, decimal numbers can be represented as either float or Decimal from the decimal module.

Apr 9, 2025 · In Python, dealing with decimal numbers is a common task in various applications, especially those related to financial calculations, scientific computations, and any scenario where precise arithmetic operations are required. While Python has the built-in `float` data type for representing real numbers, it has limitations in terms of precision. The `decimal` module in …