Introduction
Welcome to the documentation for the Engineering Notation Formatter! This guide aims to provide you with all the necessary information on how to use this formatter efficiently. It is designed to help you format numbers in engineering notation, which simplifies the representation of very large or very small numerical values.
Installation
To start using the Engineering Notation Formatter, you must first install it into your Xcode project. Follow these steps for a successful installation:
1. Open the Xcode project where you want to use the formatter.
2. In the menu at the top, select “File” and then “Swift Packages” and finally “Add Package Dependency”.
3. In the search bar, enter “EngineeringNotationFormatter” and select the package from the search results.
4. Choose the appropriate version and click “Next” to proceed with the installation.
5. Select the target where you want to add the package and click “Finish”.
Usage
Once the installation is complete, you can now use the Engineering Notation Formatter in your project. Follow these steps to format numbers using the formatter:
1. Import the Engineering Notation Formatter module in any Swift file where you want to format numbers: `import EngineeringNotationFormatter`.
2. Create an instance of the `EngineeringNotationFormatter` class: `let formatter = EngineeringNotationFormatter()`.
3. Use the `format` method on the formatter object to format a number: `let formattedNumber = formatter.format(1000000)`.
4. The `formattedNumber` variable will now contain the formatted number, which you can use as desired.
Options
The Engineering Notation Formatter provides various options to customize the formatting of numbers. Here are some commonly used options:
1. `useExponentialNotation`: Set this option to `true` if you want to use exponential notation for very large or very small numbers. Default value is `false`.
2. `exponentialNotationThreshold`: This option allows you to define the threshold value at which the formatter switches to exponential notation. By default, it is set to `1e6` for large numbers and `1e-2` for small numbers.
3. `significantFigures`: You can set the number of significant figures for the formatted number by using this option. The default value is `2`.
Examples
Below are some examples to illustrate how to use the Engineering Notation Formatter:
Example 1
Format a large number:
“`swift
import EngineeringNotationFormatter
let formatter = EngineeringNotationFormatter()
let formattedNumber = formatter.format(1500000)
print(formattedNumber) // Output: 1.5M
“`
Example 2
Format a small number:
“`swift
import EngineeringNotationFormatter
let formatter = EngineeringNotationFormatter()
let formattedNumber = formatter.format(0.000025)
print(formattedNumber) // Output: 25µ
“`
Conclusion
Congratulations! You have now successfully learned how to use the Engineering Notation Formatter in your Xcode project. This formatter provides a convenient way to format numbers in engineering notation, making it easier to work with very large or very small numerical values. Feel free to explore the available options and experiment with different formatting techniques to suit your specific needs.