if lookFor is in card field "system" of card 2 then
put "system choice" into card field status of card 2
put return after card field status of card 2
put lookFor after card field status of card 2
put return after card field status of card 2
put card field "title" after card field status of card 2
set visible of card field menuList of card 2 to false
go to card 2
end if
if lookFor is in card field "type" of card 2 then
put "type choice" into card field status of card 2
put return after card field status of card 2
put lookFor after card field status of card 2
put return after card field status of card 2
put card field "title" after card field status of card 2
set visible of card field menuList of card 2 to false
go to card 2
end if
if lookFor is in card field "discipline" of card 2 then
put "discipline choice" into card field status of card 2
put return after card field status of card 2
put lookFor after card field status of card 2
put return after card field status of card 2
put card field "title" after card field status of card 2
set visible of card field menuList of card 2 to false
go to card 2
end if
end hit
-- part 23 (field)
-- low flags: 81
-- high flags: 0004
-- rect: left=50 top=150 right=325 bottom=462
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 3
-- text size: 18
-- style flags: 256
-- line height: 24
-- part name: helper
-- part 24 (button)
-- low flags: 00
-- high flags: 2000
-- rect: left=0 top=68 right=80 bottom=512
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 25 (button)
-- low flags: 00
-- high flags: 2000
-- rect: left=0 top=80 right=92 bottom=512
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 26 (button)
-- low flags: 00
-- high flags: 2000
-- rect: left=0 top=92 right=104 bottom=512
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 27 (button)
-- low flags: 00
-- high flags: 2000
-- rect: left=0 top=104 right=116 bottom=512
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 28 (button)
-- low flags: 80
-- high flags: 2000
-- rect: left=206 top=140 right=162 bottom=306
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 29 (button)
-- low flags: 80
-- high flags: 2000
-- rect: left=206 top=140 right=162 bottom=306
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 30 (button)
-- low flags: 80
-- high flags: 2000
-- rect: left=206 top=140 right=162 bottom=306
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 31 (button)
-- low flags: 80
-- high flags: 2000
-- rect: left=206 top=140 right=162 bottom=306
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 32 (button)
-- low flags: 80
-- high flags: 2000
-- rect: left=206 top=140 right=162 bottom=306
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
send hit to card field clickable
end mouseUp
-- part 33 (button)
-- low flags: 00
-- high flags: 2003
-- rect: left=0 top=0 right=32 bottom=32
-- title width / last selected line: 0
-- icon id / first selected line: 32488 / 32488
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
put return after card field status of card 2
put card field "title" into line 3 of card field status of card 2
go to card 2
end mouseUp
-- part 34 (button)
-- low flags: 00
-- high flags: 2003
-- rect: left=480 top=0 right=32 bottom=512
-- title width / last selected line: 0
-- icon id / first selected line: 25002 / 25002
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Help
----- HyperTalk script -----
on mouseDown
set visible of card field helper to true
end mouseDown
on mouseUp
set visible of card field helper to false
end mouseUp
on mouseLeave
set visible of card field helper to false
end mouseLeave
-- part 35 (field)
-- low flags: 81
-- high flags: 0000
-- rect: left=156 top=120 right=205 bottom=356
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: discipline
-- part 36 (field)
-- low flags: 81
-- high flags: 0000
-- rect: left=156 top=120 right=205 bottom=356
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: system
-- part 37 (field)
-- low flags: 81
-- high flags: 0000
-- rect: left=156 top=120 right=205 bottom=356
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: type
-- part contents for card part 6
----- text -----
Difeq: Algebraic/differential equation parser with graphic output
-- part contents for card part 7
----- text -----
Difeq is a program that can parse algebraic and differential equations contained in a file that has been written and saved using a text editor. The set of equations is checked for errors and then compiled into an internal format (pcodes). The pcodes are then executed, solving the system of equations contained in the input file. In its simplest invocation, "difeq <file> ; graf" the solution to the set of equations is written to a temporary file, the file graf.commands is over-written with a description of the data in the temporary file, and graf is invoked to plot the results. This form of operation requires wm, the Andrew window manager, to be running.
The input file format used by difeq is designed to be simple, and to resemble as much as possible that used for algebraic expressions and differential equations in college textbooks.
It is possible to cause difeq to save its results in a "permanent" file area, and to perform your own post-processing on the output data. The file format of a permanent file created by difeq is portable to machines and programming languages that use the ASCII character set. Some hints on doing this are given under an advanced topics heading.
-- part contents for card part 19
----- text -----
Dartmouth College
-- part contents for card part 23
----- text -----
Click "UP-ARROW" for previous menu
Click any BOLD-FACE phrase for a listing of entries sharing that
property or attribute
-- part contents for card part 18
----- text -----
Horton, Earle R.
-- part contents for card part 8
----- text -----
DEPARTMENT: Project NORTHSTAR, Thayer School of Engineering