Calculating Dataset Mean, Mode, Median, and Range

I have not had Statistics since the first time I went to college - 13 years ago, so...

I'm trying to create a Visual Basic program (VB2005) for an Intro to VB 2005 class Thesis project that calculates the following items out of a set of numbers:

Mean

Arithmetic Mean
Weighted Arithmetic Mean
Geometric Mean
Harmonic Mean
Power Mean
Interquartile Mean
Quadratic Mean
Generalized (Power, Holder) Mean
Mode
Median

Standard Median
Weighted Median
Range

Standard Range
Interquartile Range

Here is a list of test figures (the total number of figures will vary from job to job): { 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5 }

I have the calculations for all the Modes, Medians, and Ranges, and most of the Means, but I either do not have the calculations or understand the calculations for the following Means calculations:

Weighted Mean
Generalized (Power, Holder) Mean

If anyone is a Statistics master, please help!!!