The math isclose() function is used to figure out if two values are close to one another. If the numbers are near it produces true; otherwise, it returns false.
Syntax:
This method is structured on four parameters (a, b, rel_tol, abs-tol):
- [ a ]: The first value which is needed to be compared.
- [ b ]: The second value which is needed to be compared.
- [ rel_tol ]: It is the greatest allowable difference among numbers a and b, derived from the word relative tolerance. The default setting is (1e-09).
- [ abs_tol ]: It is derived from the phrase absolute tolerance and is used to compare the numbers close to zero. The quantity must be at least (0).
Example 1:
This example shows the comparison between two same integer values that are (1) and (1) as they both are the same values. This naturally indicates them both to be nearest in comparison to each other. The difference between both values is zero which is the default least tolerance given in the provided parameter. So, the return value must be zero.
As mentioned before, the compiler returns the “true” value after comparing (1) and (1). And the process ends.
Example 2:
This example shows the cases of a comparison between two integer values (10) and (1) with the use of relative tolerance which dictates that the maximum difference allowed between two values must be (2). So, this makes our comparison true as a natural difference is (9). All parameters fall in sequence for return in value of true.
As expected, the comparison of 10 and 1 with relative tolerance of 2 returns “true” after compilation.
Example 3:
In this example, there is a comparison between two integer values that are (10) and (18) which are also given a parameter of minimum absolute tolerance that is (11). The difference between both values is (8) which means that the method that falls in condition as abs_tol is (11) and the return value is true.
The compiler returns the expected result which is “true” since all the parameters were within the condition.
Example 4:
This example shows the method working with all four parameters with any default value. The values that are provided for comparison are two integers which are (5) and (3). The relative tolerance is (1) and the absolute tolerance is (0.7). This means that the maximum allowed difference is (1) and the minimum absolute tolerance is (0.7). The natural difference between (5) and (3) is the value of (2) which means that the comparison is a success and both values are near each other.
As expected, the compiler returns the “True” value since all four parameters met the criteria that they created. Thus, the answer is valid/true.
Example 5:
This example showcases the use of predefined variables to be in the method for comparison. Variable (a) and (b) are already given values in integers that are (45) and (5).In this example, the method uses all four parameters for comparing (a) and (b). In this example, the relative tolerance is (1) and the absolute tolerance is (0.7). The natural difference between (45) and (5) is (40) which comes under all the criteria. The return value should give the Boolean value of “True”.
With variable (a) holding the integer value (45) and (b) holding (5), they have a difference of (5) and which returns the true value because the relative tolerance is (1) and the absolute tolerance is (0.7).
Example 6:
This example shows a code where the practice of using the print() function is used to print a return value for the isclose() method by assigning the whole method to a variable, which dictates the return value to be transferred as the value of the assigned variable which is (a). The four parameters contain two integer values which are (95) and (88). The relative tolerance is (0.1) and the absolute tolerance is (0.23). The natural difference between two integer values of (95) and (88) is (7) which is ok for comparison as relative tolerance and absolute tolerance. So, the expected return must be “True”.
Since the expected return value is “True” which was called by the action of print, now the return value of “True” is the value of the assigned variable which is (a).
Example 7:
This example shows a code where the practice of using the print() function is used to print a return value for the isclose() method. This time, instead of assigning a variable to be later used for the print() function, the whole function is used to call the return value. It means that the isclose() method is used as a parameter for the print() function. Print() calls the method for execution and the return value shall be printed.
This example showcases the use of predefined variables to be in the method for comparison. Variable (a) and (b) are already given values in integers which are (45) and (500).
The print() function initiates the isclose() method. Both predefined variables are called parameters in the method to compare both values.
The four parameters contain two integer values which are (45) and (500), while the relative tolerance is (0.5) and the absolute tolerance is (0.7). The natural difference between two integer values of (45) and (500) is (455) which is very far from the relative tolerance and the absolute tolerance. So, the expected return must be “False” as (455) is a very big difference which means that both values are not near each other.
After the execution, the return value comes to “False” logically, since the integers (45) and (500) are nowhere near each other with a huge difference of (455).
The return value which is “False” is shown as the value of the print function after compilation.
Conclusion
Python’s math library provides a variety of mathematical operations that may be done quickly and simply, making our lives much easier. The isclose() method is one of the most significant methods in this package. It can have many use cases since we are always comparing the integer values in our daily lives. This method can play a major role in the categorization of large amounts of data if used correctly.
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