Mark> I think you brought up the math and cmath errors before, and I
    Mark> never managed to get to the bottom of the problem.  I'll have
    Mark> another go.

I vaguely remember something about that.  If I can be a "test mule" for you,
let me know.

    Mark> Could you please tell me what

    Mark> cmath.exp(complex(710.0, 1.5))

    Mark> actually returns, if it doesn't raise OverflowError?

(1.5802653829857376e+307+inf*j)

Maybe it needs to overflow along both axes???

S