(Note: * indicates command is not yet available)

} -mark the end of a block of conditional commands
$ -temporary escape from CIGAL to execute other programs
Alarm -set a timer to execute a command string after a delay
Analogio -
Animate -display a series of pictures in rapid succession
Argshift -shift command line arguments in a CIGAL macro program
Axis -draw a coordinate axis for a graph or histogram
Box -draw a box
Break -break out of a loop of conditional code
Call -execute a device-dependent function
Chdir -change the current working directory
Circle -draw a circle
Close -close an open file or data channel
Compile -compile a CIGAL macro program to speed up execution
Comwrite -write data to a serial communication port
Declare -create a new data variable
Default -set default values for arguments to a macro command
Define -define a word or function to be expanded by the preprocessor
Delete -delete a disk file, or remove a loaded menu or macro entry
Digitize -digitize an image from the video camera input
Directory -display a list of disk files
Dmread -read a multi-format data management file
Dmwrite -write to a multi-format data management file
Dump -dump the contents of a variable in an easy-to-reload format
Edit -edit a disk file, data variable, or screen image
Ellipse -draw an ellipse
Else -start the second block of conditional code in an IF/ELSE test
Erase -erase all or part of the display
Execute -execute a character string as a CIGAL command line
FFT -perform a fast Fourier transform on a variable
Fill -fill a larger variable with many copies of a smaller variable
Font -load a character font
Freeze -make current display parameters permanent
Ftype -formatted version of the TYPE command * Getvec -
Goto -jump to a specified line label within a CIGAL macro program
Grid -draw a grid on the display screen
Help -print out information about how to use commands
Histogram -draw a histogram (or smooth curve) of a data array
If -conditional test within a CIGAL macro program
Initialize -select and initialize the input or display devices
Input -read graphics image from stored vector file x Ipalu -arithmetically combine two images * Ipwait -wait until the end of the next image processor cycle
Journal -display or re-execute previous commands
Label -mark the target of a jump from a GOTO statement
Line -draw a line
List -display a text file or macro
Load -transfer values from an array to separate number variables
Macro -load a macro program into CIGAL's system macro library
Manual -format HELP information in a form suitable for printing
Menu -load, activate, or inactivate command menus
Next -jump back to the top of a WHILE or REPEAT loop * Number -print a number on the screen
Offset -shift a variable along the X, Y, and/or Z axes
Open -open a disk file or assign an open file to a data channel
Output -write graphics data to a vector file
Paint -paint a region of the screen
Picture -read a picture (PICT) file
Pin -set the stationary point for rotation or scaling
Plot -plot one variable against another
Portio -read or write to one of the PC's I/O ports
Print -send a file or data variable to the printer * Putvec -add a vector to the vector table (VECS)
Quit -terminate CIGAL
Read -read data from disk file into a CIGAL variable
Realtime -execute a program using the real-time processor
Redraw -redraw all or part of an image
Release -unDECLARE a data variable, releasing any associated memory
Repeat -execute a block of commands more than once
Resource -read or write data "resources"
Return -terminate a CIGAL macro program or subroutine
Roam -move the image position in the X-Y plane (pan and scroll)
Rotate -rotate a variable around the X, Y, and/or Z axes
Rtclock -control a real-time clock counter
Run -execute a CIGAL macro program
Scale -scale a variable along the X, Y, and/or Z axes
Scanner -read data using image scanner x Set -set the value of a variable using screen display
Show -display the status of various aspects of CIGAL
Sketch -use the cursor to enter graphics data
Sound -record or playback sound data
Spline -redraw a vector list as a smooth curve between fixed points
Stretch -interactively adjust lookup table (e.g. to enhance contrast) x String -display a text string on the screen
Surface -construct surfaces from vector contours
Synch -set command execution to be synchronized by external events
Sysint -execute an operating system interrupt call
Text -put text on screen or into an image or graphics variable
Type -display messages and/or the values of data variables
User1 -
User2 -
User3 -
View -select which memory plane(s) to display
Wait -wait for a specified amount of time or until user input
Watch -display data variable on the screen with continuous updating
While -execute a conditional loop of commands
Window
Write -write data from a CIGAL data variable to a disk file
Zscan -Convert 2-D data to 3-D data using data value as Z position

For more information on a particular command type:
help commandname
where COMMANDNAME is the command of interest. For more general help type:
help