| ABOUT | displays lists and information on tasks, verbs, adverbs |
| ABS | returns absolute value of argument |
| ACOS | Returns arc cosine of argument (half-circle) |
| APROPOS | displays all help 1-line summaries containing specified words |
| ARRAY | Declares POPS symbol name and dimensions |
| ARRAY1 | General scratch array adverb |
| ARRAY2 | General scratch array adverb |
| ARRAY3 | General scratch array adverb |
| ASIN | Returns arc sine of argument (half-circle) |
| ATAN | Returns arc tangent of argument (half-circle) |
| ATAN2 | Returns arc tangent of two arguments (full circle) |
| BY | gives increment to use in FOR loops in POPS language |
| CATNO | Specifies AIPS catalog slot number range |
| CEIL | returns smallest integer greater than or equal the argument |
| CHAR | converts number to character string |
| CLRTEMP | clears the temporary literal area during a procedure |
| COMPRESS | recovers unused POPS address space and new symbols |
| CORE | displays the used and total space used by parts of POPS table |
| COS | returns cosine of the argument in degrees |
| DEBUG | turns on/off the POPS-language’s debug messages |
| DEFAULT | Verb-like sets adverbs for a task or verb to initial values |
| DELAY | Verb to pause AIPS for DETIME seconds |
| DELTAX | Increment or size in X direction |
| DELTAY | Increment or size in Y direction |
| DENUMB | a scalar decimal number |
| DOOSRO | calibrating amplitude and phase, and imaging VLA data |
| DOVLAMP | Produces amp calibration file for phased-VLA VLBI data |
| DOWNCASE | Convert a string to all lower case letters |
| DPARM | General numeric array adverb used many places |
| DUMP | displays portions of the POPS symbol table in all formats |
| EDIT | enter edit-a-procedure mode in the POPS language |
| EHEX | converts decimal to extended hex |
| EHNUMB | an extended hexadecimal ”number” |
| ELSE | starts POPS code done if an IF condition is false (IF-THEN..) |
| END | marks end of block (FOR, WHILE, IF) of POPS code |
| ENDEDIT | terminates procedure edit mode of POPS input |
| ERASE | removes one or more lines from a POPS procedure |
| ERROR | was there an error |
| EVLA | puts the list of eVLA antennas in the current file on stack |
| EXIT | ends an AIPS batch or interactive session |
| EXP | returns the exponential of the argument |
| EXPLAIN | displays help + extended information describing a task/symbol |
| FINISH | terminates the entry and compilation of a procedure |
| FLOOR | returns largest integer ¡= argument |
| FOR | starts an iterative sequence of operations in POPS language |
| GET | restores previously SAVEd full POPS environment |
| GETDATE | Convert the current date and time to a string |
| GETPOPSN | Verb to return the pops number on the stack |
| GG | spare scalar adverb for use in procedures |
| GRANDOM | Finds a random number with mean 0 and rms 1 |
| HELP | displays information on tasks, verbs, adverbs |
| HSA | puts the list of HSA antennas in the current file on stack |
| I | spare scalar adverb for use in procedures |
| IF | causes conditional execution of a set of POPS statements |
| INP | displays adverb values for task, verb, or proc - quick form |
| INPUTS | displays adverb values for task, verb, or proc - to msg file |
| ISBATCH | declares current AIPS to be, or not to be, batch-like |
| J | spare scalar adverb for use in procedures |
| KLEENEX | ends an AIPS interactive session wiping the slate klean |
| LENGTH | returns length of string to last non-blank character |
| LIST | displays the source code text for a POPS procedure |
| LN | returns the natural logarithm of the argument |
| LOG | returns the base-10 logarithm of the argument |
| MAX | returns the maximum of its two arguments |
| MIN | returns the minimum of its two arguments |
| MOD | returns remainder after division of 1st argument by 2nd |
| MODIFY | modifies the text of a line of a procedure and recompiles |
| MODULUS | returns square root of sum of squares of its two arguments |
| NOADVERB | Information about the lack of a defined adverb or verb |
| NUMTELL | selects POPS number of task which is the target of a TELL or ABORT |
| NX | General adverb referring to a number of things in the X direction |
| NY | General adverb referring to a number of things in the Y direction |
| OUTPUTS | displays adverb values returned from task, verb, or proc |
| PARALLEL | Verb to set or show degree of parallelism |
| PASSWORD | Verb to change the current password for the login user |
| PCAT | Verb to list entries in the user’s catalog (no log file). |
| PIPEAIPS | calibrating amplitude and phase, and imaging VLA data |
| POPSDAT | lists all POPS symbols to create them for MEmory files |
| POPSYM | Describes the symbols used in POPS |
| Print the value of an expression | |
| PRINTER | Verb to set or show the printer(s) used |
| PROC | Define a POPS procedure using procedure editor. |
| PROCEDUR | Define a POPS procedure using procedure editor |
| PSEUDO | Description of POPS pseudoverbs - obsolete list file |
| PSEUDOVB | Declares a name to be a symbol of type pseudoverb |
| QINP | displays adverb values for task, verb, or proc - restart form |
| RANDOM | Compute a random number from 0 to 1 |
| READ | Read a value from the users terminal |
| REHEX | converts extended hex string to decimal |
| RENAME | Rename a file (UV or Image) |
| RESTART | Verb to trim the message log file and restart AIPS |
| RESTORE | Read POPS memory file from a common area. |
| RETURN | Exit a procedure allowing a higher level proc to continue. |
| RUN | Pseudoverb to read an external RUN files into AIPS. |
| SAVDEST | Verb to destroy all save files of a user. |
| SAVE | Pseudoverb to save full POPS environment in named file |
| SCALAR | Declares a variable to be a scalar in a procedure |
| SCANLENG | specify length of ”scan” |
| SCRATCH | delete a procedure from the symbol table. |
| SETDEBUG | Verb to set the debug print and execution level |
| SG2RUN | Verb copies the K area to a text file suitable for RUN |
| SGDESTR | Verb-like to destroy named POPS environment save file |
| SGINDEX | Verb lists SAVE areas by name and time of last SAVE. |
| SIN | Compute the sine of a value |
| SLOT | Specifies AIPS catalog slot number |
| SPY | Verb to determine the execution status of all AIPS tasks |
| SQRT | Square root function |
| STORE | Store current POPS environment |
| STQUEUE | Verb to list pending TELL operations |
| STRING | Declare a symbol to be a string variable in POPS |
| SUBMIT | Verb which submits a batch work file to the job queue |
| SUBSTR | Function verb to specify a portion of a STRING variable |
| T1VERB | Temporary verb for testing (also T2VERB...T9VERB) |
| TAN | Tangent function |
| TAPES | Verb to show the TAPES(s) available |
| TASK | Name of a task |
| TGET | Verb-like gets adverbs from last GO of a task |
| TGINDEX | Verb lists those tasks for which TGET will work. |
| THEDATE | contains the date and time in a string form |
| THEN | Specified the action if an IF test is true |
| TIMDEST | Verb to destroy all files which are too old |
| TO | Specifies upper limit of a FOR loop |
| TPUT | Verb-like puts adverbs from a task in file for TGETs |
| TUGET | Verb-like gets adverbs from last GO of a task from another user # |
| TYPE | Type the value of an expression |
| UPCASE | Convert a string to all upper case letters |
| USAVE | Pseudoverb to save full POPS environment in named file |
| VALUE | Convert a string to a numeric value |
| VERB | Declares a name to be a symbol of type verb |
| VERSION | Specify AIPS version or local task area |
| VGET | Verb-like gets adverbs from version task parameter save area |
| VGINDEX | Verb lists those tasks for which VGET will work. |
| VLA | puts the list of VLA antennas in the current file on stack |
| VLARUN | Calibrating amplitude and phase, and imaging VLA data |
| VLBA | puts the list of VLBA antennas in the current file on stack |
| VLBAMPHC | applies VLBARUN calibration to additional phase stopping centers |
| VLBARUN | applies amplitude and phase calibration procs to VLBA data |
| VNUMBER | Specifies the task parameter (VGET/VPUT) save area |
| VPUT | Verb-like puts adverbs from a task in files for VGETs |
| WAITTASK | halt AIPS until specified task is finished |
| WHILE | Start a conditional statement |
| X | spare scalar adverb for use in procedures |
| XHELP | Accesses hypertext help system |
| Y | spare scalar adverb for use in procedures |