Document Addendum

Some extra functions are added:

ACOS(arg) and DACOS(arg) - Arc Cosine (radians)
ASIN(arg) and DASIN(arg) - Arc Sine (radians)
TAN(arg) and DTAN(Arg)   - Tangent (radians)

ATM[V1,V2]               - Arc tangent of V1/V2, 4 quadrant version
				(ATAN2 in normal Fortran)

Also Enter mostly mode more or less works.

Please note: When function key files are running (from depressing
function keys using the AnalyKeypad.Arc files in area DK:), they
expect their input in the LOWER window. This will probably be
cleaned up eventually but for now is the case.

This version (V22-3F) should run in a non interlace screen. Also
it will display the row numbers being recalculated in the lower
window as recalculation proceeds. This can be turned off with the
command VH- and turned on with the command VH+ in the main window.

  In addition, new addressing modes are supported.
P#_AB will address the cell with column number in accumulator A
and row in accumulator B, on the physical sheet. D#_AB works the
same for display sheet. (That is, absolute addressing on the
sheet instead of relative as in P#%AB). Also an address mode
P#$cell1:cell2:  will do absolute addresses in which the contents
of cell "cell1" are used for column number and the contents of
cell "cell2" give the row number. Thus if cell B3 contains 2 and
cell B4 contains 6, then cell P#$B3:B4: refers to cell B6 (column
2, row 6). Any cell address except another P$ form may be used
in this form.
   The *U STxxxx functions support inclusion of unmodified user
written programs in the spreadsheet; see the SCIFCT.* subroutine
for more detail.