In demo mode the following limitations apply:

An explanation of each to the information types is as follows:

	Name	Name of the element.
	Atomic #	Atomic number of the element.
	Mass	Mass of the element in grams per mol.
	State	State of the element under standard conditions.
	Family	Family of the periodic table to which the element belongs.
	Elec neg.	Electronegativity of the element.
	Ox states	Oxidation states of the element.
	Elec Config	Electron configuration of the element at ground state.
	Crystal	Type of crystal structure the element has.
	Density	Density of the element in grams per milliliter.
	Radius	Atomic radius of the element in picometers.
	IE	1st ionization energy of the element in KJ per mol.
	MP	Melting Point of the element in Kelvin.
	BP	Boiling Point of the element in Kelvin.

The molecular weight calculator is used to automatically calculate molecular weights.  Simply enter the formula and click calculate.  A status bar will show the progress until the weight has been calculated.  

Options have been added for rounding values to significant digits and for removing case sensitivity.  Support for brackets has also now been added.

In some cases, you may need to use case sensitive analysis.  For example, if you enter hf, the software has no idea whether you intend Hf , or HF.  For most calculations, using the case insensitive option works as expected.  Always check the recognized textbox to ensure the algorithm recognized everything in the input string correctly.

Example valid formula types:

c6h6

br(ch)6ch3

CH3(NaOH)6

Angle
Energy
Force
Length
Mass
Power
Pressure
Temperature
Volume

Simply select the "To:" and "From:" units, then enter a value to convert. Click on calculate to convert the value.

The built-in structures can be accessed under the 'View' menu.  To view a structure simply select it from the menu entry and the molecule will be loaded to the screen.  The view types include:

Crystal Stuctures
VSEPR Models
Alkanes
Alkenes 
Alkynes
Alchohols
Caffeine

Once a molecule is loaded, it can be rotated by moving the stylus on the screen, or by using the axis rotation icons on the bottom right of the screen.  

The toolbar buttons provide additional functionality.  The first button is used to toggle atomic labels on and off.  The second button toggles between rotation and translation mode.  When in translation mode, the molecule can be moved around the screen with the stylus or with the movement icons.  The third toolbar button toggles the auto-rotate view.  This will rotate the molecule about the y-axis by 10 degrees every 500 ms.  A fourth button has been added as of version 3.3. This button allows angle measurements to be taken between any three atoms. Simply toggle the feature on, then click any 3 atoms and the contained angle will be displayed in the bottom left of the screen. Please note that the rotation is locked during angle measure mode.

A custom model can be loaded with the file menu.  Supported formats include standard *.pdb (Protein Data Bank) files and simple custom *.txt files.  Files must be located in the "\My Documents" directory.

It is recommended that only small *.pdb files be loaded as large ones take a very long time to load and redraw.  Also please note that bonds are only shown if the file contains connection data for the atoms, otherwise only the atoms are visible.

The format expected for a *.txt file is shown below.  Each atom in the molecule is represented by one line in the file. See the line format expected and the sample for Methane.  Please note this was not calculated precisely and is an example only.

Line Format
Atom Number,Element Symbol,x-position,y-position,z-position,bonded to#1,bonded to#2  ... etc

Example for Methane
1,C,0.000,0.000,0.000,2,3,4,5
2,H,0.000,1.090,0.000
3,H,1.031,-0.364,0.000
4,H,-0.516,-0.364,-0.893
5,H,-0.516,-0.364,0.893