# Author's software

#### Being tested

The establishment of precision number

Writing functions:

The setting is exactly the extreme number for the number, value - for fission - setting the div to retrieve the root parameter rad, for the log - log option. These values define the number of digits after the decimal point (or comma), which is a mathematical operation.

The number precision adjustment function is an important tool in mathematical calculations and data analysis. It allows you to control the number of digits after the decimal point for division operations, calculation of the mathematical root and logarithm.

One of the most common uses of the number precision function is to round the result of mathematical operations to a certain number of decimal places. For example, when working with financial data, it may be useful to round the result of dividing two numbers to two decimal places to get more accurate and readable values.

To create a precision number function, we can use the setexact function. We will need to pass four arguments to the function: the number for which we need to adjust the accuracy, and the desired number of digits after the decimal point for each action (there are 3 of them here).

Thus, the precision function of the number allows you to effectively control the accuracy of the results of mathematical operations, making them more accurate and visual for analysis and use in further calculations.

Help on built-in functions
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