[GiNaC-list] Undefine the predefined numeric consant 'I'?

[Vladimir V. Kisil]

>>>>> On Fri, 1 Nov 2019 18:19:44 -0400, Warren Weckesser <warren.weckesser at gmail.com> said:

    WW> Is there an easy way to undefine the predefined numeric value
    WW> 'I'?  If I define a symbol 'I', use it in an expression, and
    WW> then output that expression to cout after modifying stream with
    WW> csrc, 'I' is converted to 'std::complex<double>(0.0,-1.0)'.  I'd
    WW> like the output to be just 'I'.

    Would a string substitution be a solution to this? 

-- 
Vladimir V. Kisil                 http://www.maths.leeds.ac.uk/~kisilv/
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