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Is There a C# Equivalent to Java's BigDecimal for Arbitrary-Precision Decimal Arithmetic?

Linda Hamilton

Jan 04, 2025 pm 02:32 PM

Is There a C# Equivalent to Java's BigDecimal for Arbitrary-Precision Decimal Arithmetic?

Counterpart for Java BigDecimal in C#

In Java, the BigDecimal class enables precise operations on large-scale numerical values. Does C# offer an analogous class or data structure that serves a similar purpose?

Equivalent in C#

Within the .NET Framework, a custom floating-point type employing the BigInteger datatype and a base 10 exponent has proven to effectively mimic the functionality of BigDecimal. This implementation was shared on Stack Overflow, catering to users seeking a custom arbitrary-precision decimal solution.

Features

This custom type replicates various aspects of BigDecimal, including:

Auxiliary arithmetic and comparison operators
Conversion capabilities to and from common numerical types
Exponential methods

Limitations

Despite its capabilities, this implementation may not be exhaustive or entirely accurate. It was developed with speed as a priority; therefore, it's advisable to exercise caution when employing it for critical calculations.

Github Implementation

The implementation, originally posted on GitHubGist, has been updated and is available at https://gist.github.com/JcBernack/0b4eef59ca97ee931a2f45542b9ff06d.

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