BigIntegerFormatter

A few classes - Program.cs and BigIntegerFormatter.cs actually - that allows for formatting BigInteger numbers using scientific and engineering notations.

Requires System.Runtime.Numerics NuGet package.

Some of the concepts were taken from https://stackoverflow.com/questions/37907411/c-sharp-format-arbitrarily-large-biginteger-for-endless-game question from Thijs Riezebeek (https://stackoverflow.com/users/4519644/thijs-riezebeek) StackOverflow user.

What is this

BigIntegerClass is a static class placed in this project. It allows for formatting BigInteger values to easy-to-read format: using scientific and engineering notations.

It also trims zeros from the end of the number when using engineering notation. It doesn't trim zeros when using scientific notation - I just didn't feel like doing it since I didn't need that.

When it comes to the engineering notation, this project uses a few pre-typed-in suffixes, such as:

• empty string for the numbers smaller than 1000,
• k for thousands,
• M for millions,
• B and Q likewise.

For bigger numbers, it generates the suffixes, in order:

• a, b, ..., z - excluding k because of the thousands
• aa, bb, ..., zz

and so on.

Examples

12345 can be returned as a string, formatted: 1.234e4 or 12.345k.
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 can be returned as a string, formatted: 1.000e424 or 10hhhhhh.

Where should I use this

It can be very useful when creating idle-clicker games or in other C# projects where you have to format big numbers.

How to use

There are a few ways to use this thing.

Use in BigIntegerFormatter project

Clone it, open, and create some BigIntegers in the Main method. There are already three of them so you can see how it works. There is a small method under the Main method called DoStuff(BigInteger bigInteger). Use it to see your numbers formatted using scientific and engineering notations in the Console.

Use BigIntegerFormatter.FormatScientific(BigInteger bigInteger) to get a string with the number formatted using scientific notation (e.g. 1.000e3).

Use BigIntegerFormatter.FormatWithSuffix(BigInteger bigInteger) to get the string with the number formatted using engineering notation (e.g. 1k).

Use in other projects

Copy the BigIntegerFormatter class to your project. Create the BigInteger wherever you need to. (Note that you might need BigInteger.Parse method if the int value will be too big. You can see the example in the Main method.)

Create a string using BigIntegerFormatter.FormatWithSuffix(BigInteger bigInteger) or BigIntegerFormatter.FormatScientific(BigInteger bigInteger) method, depending on which notation you want to get.