Version 21 of AnalytiCalc adds some fixes so that numbers of
the form nn.mmE kk or nn.mmE -kk (nn, mm, and kk are any numbers
desired for scientific format input) are evaluated correctly.
	Also, the S (Setup) command now asks for the length of your
screen if you tell it you want to change windows & parameters.
The normal length is 25 lines, but it can be adjusted to any
number (4 or more) to accomodate short screens or extra
long ones. Note that a corresponding DB command must also be given
to complete the change. The S command can be inserted into an
ACINIT.PRM file to automate this. Thus, to handle a 16 line
screen, use the S command and give the length as 16. Then use a command
like DB 7,12 to set 12 rows of display (since 2 rows are used at the top
and 2 at the bottom for other purposes.)
	AN on a cell EXECs a command EDIT name.ANN to create/mod a cell
annotation (320K only). ? or QUEry on a cell shows the file. Name is made
of 1st 3 chars of sheet title and a cell hashcode.