App for Symbian S60 5th Edition

The excel document i attached is a basic template which can be used to work out calucaltions. To save repetitve work of writing it out manually by hand. All of the forumals are already there so it is just a matter of subbing in values and seeing the end result worked out. (You do not really need to know this point for the project but the calculations are used to work out the length? of pipe required for? installing gas? in a? house.) ? The spreadsheet i gave you can be split into 2? part for ease of viewing? on the phone? with the smaller screen. Then maybe we need some 3rd screen to show the output of the two results. So i think the app should have the following menu structure, unless you can think of anything better. 1. Main Menu ? ? 1a. Gas Rating ? ? 1b. Purging Volume ? ? ? 1c. Summary of results 2. Gas Rating ? ? 2a. Link to Purging Volume section? ? ? ? 2b? Link to summary page ? ? 2c. Back to main menu 3.? Purging Volume ? ? 2a. Link to? Gas Rating? section? ? ? ? 2b? Link to summary page ? ? 2c. Back to main menu Note: I do not have any symbian developer licenses etc...