Add basic structure.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Hide namespace.

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Add initialization and output for complex number.

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Add calculation operators.

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The matrix with template.

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Change the matrix to fixed 2 dimension.

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Delete template.

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Remove unneccessary functions.

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Move the functions outside the ComplexNumber class.

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Rearrange the file distribution of ComplexNumber.

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Update change log.

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Merge branch 'cpp_test' into cpp
Update readme.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Merge branch 'cpp' of https://github.com/CyberZHG/ZMatrix.git