Free rhumb line navigation software for pda

3netCalc is a subnet calculator for the mobile phone. Input an ip address and subnet mask/mask bits/number of hosts wanted and it will display the hosts, network address, broadcast address, 1st IP address , last IP address, and inverse subnet mask. It has menus for alternative input of details using the navigation keys.

Navigate is a Palm OS program for computing the range and bearing between any two points on the Earths surface OR the end location given a starting location, range and bearing.
It will compute these solutions for either lines of constant bearing (loxodromes or rhumb lines) or the shortest possible path on the Earth (geodesics or great circle routes).

The calculator also supports the conversion of angular units between decimal degrees, degree and decimal minutes, or degrees, minutes and decimal seconds; and range units of kilometers, nautical miles, statue miles, meters or yards.

The complete source code is also available on the authors web site.

In this game you will build straight lines of color balls. There are two play modes - Classic and Challenge

Tap a ball to select it and then tap a square where you want it to move. Remember that there must be a clear path for ball to move. If you tapped a square to which there is no path, you will receive No Way message. To get a line of balls destroyed, you have to build a line of a minimum four balls (in Clallenge mode) or five balls (in Classic mode). You can build horizontal, vertical, or diagonal lines. The longer line you destroy, the more score you get. If you destroy lines in serie, you will receive a big more points for each next line!

Play Modes

Classic

This is the same to classical Lines game. Minimum balls in one line is five and next balls (their colors) are shown above the playfield. On each move, these next balls appear in the playfield, unless you you build and destroy a line. Destroying a line no only give you points but also reserves more space in the playfield, so this is part of strategy.
Classic play mode is not for hurry, but for thinking. Take each move carefully, and you will get a big score!

Challenge

Challenge mode has some innovations. They are: you can build shorter lines, next balls shown in the playfield, there is a timer, and there is a level system.
Challenge is a fast-played mode, therefore a completed line can have minimun four balls. You can, of course, build longer lines and get bigger score, just as in Classic mode.
You have a limited time to complete a level. To complete a level, you have to destroy 16 lines. Level progress is shown just above the playfield. When you complete a level, a Level Up message appears, and you get an extra time. The higher the level, the bigger point are given for each ball, so there is a sense to increase game level quickly.

You move the balls, one at a time, trying to create horizontal, vertical or diagonal lines of five or more balls of the same color.

If you succeed, this line disappears and you get some points, if not, there will be three more balls thrown on the board.

Their colors and position will be random. The game ends when the board is filled up.

This MathU Pro program provides some basic great circle and rhumb line navigation functions. Its features include distance, course, and vertex calculations.

LINES FG is another version of Lines with better graphics. It takes a bit more memory and space but it looks a lot prettier than the original Lines

How Lightning Distance Calculator works:
Click the Navigation button when you see the lightning, then click it again when you hear the thunder.
The calculator provides time interval between the lightning and the thunder and the distance to the lightning.
Main features:
- The intuitive interface.
- Oversized numbers for easy data entry.
- This software can be used as a timer.

Here are the commandline (outside of Notes) program and the options for each.
System requirements:
- HanDBase v.2.7x or greater