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Changes between Initial Version and Version 1 of Ticket #21614

initial	v1
9	9	!SymPy expands similarly but gives NaN on substitution instead of an exception.
10	10
11		This all ~~might not be of concern if not 3d plotting would~~ need real/imag parts of a function, their workaround `real(...,hold=True)` works perfectly but this is not the general solution that is needed.
	11	This all would not be of concern if not 3d plotting would likely need real/imag parts of a function, their workaround `real(...,hold=True)` works perfectly but this is not the general solution that is needed.
12	12
13	13	One solution would be to return `NaN` instead of throwing up.