Make Complex and Fraction classes immutable and thus thread-safe
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Key: MATH-188
URL: https://issues.apache.org/jira/browse/MATH-188
Project: Commons Math
Issue Type: Improvement
Reporter: Sebb
There are many classes with instance fields that could be made final.
Two in particular seem like ideal candidates:
Complex - fields: real, imaginary
Fraction - fields: numerator, denominator (the private reduce() method also
needs to be inlined)
As far as I can tell, making the above changes makes the classes immutable and
therefore threadsafe.
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