summaryrefslogtreecommitdiff
path: root/ipl/docs/hebcalpi.hlp
diff options
context:
space:
mode:
Diffstat (limited to 'ipl/docs/hebcalpi.hlp')
-rw-r--r--ipl/docs/hebcalpi.hlp86
1 files changed, 86 insertions, 0 deletions
diff --git a/ipl/docs/hebcalpi.hlp b/ipl/docs/hebcalpi.hlp
new file mode 100644
index 0000000..92016b6
--- /dev/null
+++ b/ipl/docs/hebcalpi.hlp
@@ -0,0 +1,86 @@
+Here is the alternate help for the calendar in ProIcon.
+
+This program accepts a year of the Jewish calendar, for example
+"5750", and produces on the screen a calendar of that year with a
+visually equivalent civil calendar opposite it for easy conversion of
+dates. The months of the civil year are abbreviated to
+
+JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
+
+and of the Jewish calendar to
+
+NIS IYA SIV TAM AV ELU TIS HES KIS TEV SHE ADA AD2.
+
+Months are normally displayed three at a time. You call up the next
+three by hitting the space bar (or any other character). You may
+conclude at this point if you wish by clicking on the word "Run" at
+the top of the screen, dragging down to "Stop" and releasing.
+At the end of the year you can indicate if you wish to
+view the next following year by entering the letter "y" in response to
+the question, Do you wish to continue? If you enter "n" the program
+will conclude, or go on to the next year you wished to see if you
+called the program with multiple entries of years. (See below.)
+
+Each Jewish month has its name on the left. The corresponding secular
+dates will have the name of the month on the right, and when the month
+changes it will be indicated on the right also.
+
+If you wish, you may enter a civil year in the form -70 for BCE dates
+and +70 for CE dates. The Jewish year beginning prior to Jan 1 of that
+year will be displayed, and you can continue with the next Jewish year
+if you wish to complete the desired civil year.
+
+You may enter CE or AD instead of +, or BC or BCE instead of the minus
+sign if you wish. Avoid spaces, so enter 1987AD, for example.
+
+The year 0 is not meaningful in either calendar. No date prior to 1
+in the Jewish calendar should be entered. The program will calculate
+any future year, but will take longer for years much beyond the year
+6020 in the Jewish reckoning. For example, the year 7000 will take
+three minutes or so to appear. Earlier years should appear in a few
+seconds.
+
+A status line at the bottom of the screen indicates the civil and
+Jewish year, and the number of days in each. Jewish years may contain
+354, 355, 356, 384, 385 or 386 days according to circumstances.
+
+When you are familiar with this program you can enter any number of years
+you wish to see. Before you start the program, click on "Options", drag
+to "Parameter String" and release. You can then enter, for example
+ 5704 +1987 1BC
+then click on the box marked "OK". If you want to change these later, go
+back to "Options" and type in your new list. You will see in turn the
+Jewish year 5704, the Jewish year commencing in 1986 and the Jewish year
+commencing in 2 B.C.E. You still have the option of seeing the years
+subsequent to these years if you wish. Just enter "y" when asked if you
+want to continue. When you enter "n", you will get the next year of your
+original list.
+
+When you are completely through with the program, click on "File" at
+the top of the screen, drag to "Quit" and release. If you wish you can
+drag to "Transfer" and you will see a dialogue box to transfer to another
+program, or to Hypercard.
+
+All civil dates are according to the Gregorian Calendar which first
+came into use in 1582 and was accepted in different places at
+different times. Prior to that date the Julian calendar was in use. At
+the present time the Julian calendar is 13 days behind the Gregorian
+Calendar, so that January 20 1990 in our reckoning is January 7 in the
+Julian Calendar. The following table shows the number of days that
+must be subtracted from the Gregorian date given here to find the Julian
+date. In the centuries before the current era the calendar was
+intercalated erratically, so a simple subtraction is not possible.
+
+Century # to subtract Century # to subtract
+ 21 13 11 6
+ 20 13 10 5
+ 19 12 9 4
+ 18 11 8 4
+ 17 10 7 3
+ 16 10 6 2
+ 15 9 5 1
+ 14 8 4 1
+ 13 7 3 0
+ 12 7 2 -1
+ 1 -2
+