Where do I find basic instructions on Numbers for iPad?

Question

I bought numbers for ipad to have a portable spreadsheet program to use in the field.  I previously used HanDBase with my smart phone.  I'm having problems with figuring out how to use numbers.  For example, I entered two columns of numbers and wanted to calculate a correlation coefficient.  I could enter the numbers and highlight them, bu I was unable to make the program apply the formula to those numbers.
Where can I find out how to use this program? It isn't intuitively obvious to me.  Are there any books written on the subject?

Answer 1

Bottlerocket,
When you open a spreadsheet on your iPad there is a Help File readily available under the Tool Menu (the wrench icon in the upper right) - it has a search option and can provide instructions to entering formulas on the iPad in Numbers.
Additional help can be found in two downloadable PDF files: Numbers '09 User Guide  http://manuals.info.apple.com/en_US/Numbers09_UserGuide.pdf  and The Formula and Functions User Guide  http://manuals.info.apple.com/en_US/Formulas_and_Functions_User_Guide.pdf - both are for Numbers '09 for OSX but many of the principles are the same with iOS Numbers and OSX Numbers
Remember, too, that if you "dump" your iPad Numbers app (i.e., delete it from your iPad) any files created by it are also deleted - be sure you transfer any files you wish to keep before "dumping" Numbers. Personnaly, I think you will miss some of the real pleasures of using Numbers if you do, but Happy Computing to you.