mixed-radix

Converting a decimal to a mixed-radix (base) number

How do you convert a decimal number to mixed radix notation? I guess that given an input of an array of each of the bases, and the decimal number, it should output an array of the values of each column. ...

How to calculate log of a complex number to a base other than 'e'?

I have this bit of VB6 sliced out of a project I'm working on: Public Function C_Ln(c As ComplexNumber) As ComplexNumber Set C_Ln = toComplex(Log(C_Abs(c)), Atan2(c.Imag, c.Real)) End Function The VB6 Log() function is base-e. I'd like to cook up versions of this to do base-2, base-10 and base-n. Where do I start? ...