ChemTab - A Periodic Table Data Base (C) 1989 Jim King -             Page  3

1c. Choosing chararacteristics to select elements

  a. Selecting

	The main reason for having this database is to view relationships
between elements and characteristics of the elements, such as
electronegativity or boiling point.  The process is quite simple, however.
First, at the MAIN MENU, select number 2.  It says, 'Choose elements
characteristics'.  You are now at a sub-menu of characteristics.  You can
sort elements on a maximum of three characteristics.  Go through this
process to choose one.  First, decide which characteristic to sort from.
Type in the appropriate number, hit RETURN, and another sub-menu will appear.  
At this sub-menu you are choosing whether you want to select elements with a
value greater than, less than, or equal to an amount which you type in
next.  You can choose option four at this sub-menu to return to the previous
sub-menu.  Once you decide which option you want, type in the number.  If
you do not decide to return to the last sub-menu, you will be asked, 'What
Amount?' Here you can type any number that you wish.  Hit RETURN when you
are done and the selection characteristic appears near the top of the
screen.

  b. Erasing

	To erase all of the characteristics you have showing at the top of
the screen, use option 15 in the MAIN MENU sub-menu 2.  To erase one
characteristic, go to the MAIN MENU sub-menu 2.  Type in the number of the
characteristic you want to erase.  Answer "y" to the first question it asks.
Then type 4.  This feature currently has some bugs.  For now, please use
command 15 and start from the beginning.

  c. Creating two

	You can limit the list to a defined limit on one characteristic by
choosing MAIN MENU sub-menu 2.  Then type the number of the characteristic
you want to define.  Choose the minimum value as described above.  Then, at
the sub-menu, choose the SAME number, answer "n" to the first question, and
answer "y" to the second one.  Then, set the maximum limit.

  d. Changing

	You can change one characteristic by typing it's number in the MAIN
MENU sub-menu 2 and answering "y" to the first question that appears.
