PILOT

:''For information on payments in lieu of taxes, see PILOT (finance).'' The name PILOT is an acronym, and stands for ''Programmed Instruction, Learning, Or Teaching''. Like its elder sibling LOGO programming language it was an early foray into the technology of computer assisted instruction (CAI). ==Language syntax== A line of PILOT code contains (from left to right) the following syntax elements: * an optional label * a command letter * an optional Y (for yes) or N (for no) * an optional conditional expression in parentheses * a colon (":") * an operand, or multiple operands delimited by commas. A label can also be alone in a line, not followed by other code. The syntax for a label is an asterisk followed by an identifier (alphanumeric string with alphabetic initial character). ==Command letters== The following commands are used in "core PILOT". A: Accept input into "accept buffer". Examples: R:Next line of input replaces current contents of accept buffer A: R:Next line of input replaces accept buffer, and string variable 'FREE' A:$FREE R:Next 3 lines of input assigned to string variables 'X', 'Y' and 'Z' A:$X,$Y,$Z R:Numeric input assigned to numeric variable "Q" A:#Q C: Compute and assign numeric value. Example: R:Assign arithmetic mean of #X and #Y to #AM C:#AM=(#X+#Y)/2 Most PILOT implementations have only integer (computer science) arithmetic, and no arrays. D: Dimension an array, on some implementations. E: End (return from) subroutine. Always used without any operand. J: Jump to label. Example: J:*RESTART M: Match the accept buffer against string variables or Literal strings. Example: A:Search accept buffer for "TRUTH", the value of $MEXICO and "YOUTH", in that order M:TRUTH,$MEXICO,YOUTH The first match string (if any) that is a substring of the accept buffer is assigned to the special variable $MATCH. The buffer character (computing)s left of the first match are assigned to $LEFT, and the characters on the right are assigned to $RIGHT. The match flag is set to 'yes' or 'no', depending on whether a match is made. Any statement that has a Y following the command letter is processed only if the match flag is set. Statements with N are processed only if the flag is not set. N: Equivalent to TN: (type if last match unsuccessful) R: The operand of R: is a comment, and therefore not processed. T: 'Type' operand as output. Examples: R:Output a literal string T:Thank you for your support. R:Output a variable expression T:Thank you, $NAME. U: Use (call) a subroutine. A subroutine starts with a label and ends with E: Example: R:Call subroutine starting at label *INITIALIZE U:*INITIALIZE Y: Equivalent to TY: (type if last match successful) Parentheses: If there is parenthesized expression in a statement, it is a test expression, and the statement is processed only if the test has a value of 'true'. Example: R:Type message if x>y+z T(#X>#Y+#Z):Condition met ==Extension features== Extensions to core pilot include arrays and floating point numbers in Apple II family PILOT, and implementation of Logo programming language-inspired turtle graphics in Atari 8-bit family PILOT. Domain-specific programming languages Educational programming languages

Pilot

The word pilot has several meanings: *In shipping, a pilot (harbour) is someone who guides ship through the waters near a harbour, or especially narrow or otherwise dangerous coast waters. *In aviation, a pilot, also known as an aviator, is someone who flies an aircraft. *In human spaceflight, a pilot (spaceflight) is someone who directly controls the flight of a spacecraft. *The pilot (locomotive) on a locomotive is the device at the front to deflect obstacles (also known as a ''cowcatcher''). *A television pilot is the first episode of a television series. It is usually longer than normal episodes (often twice the normal length). The pilot is intended to get network programming executives, and later the public, interested in the series, and to set the general background of the story. *Pilot (band) is the name of a pop music group best known for their 1975 in music top-20 hit song "Magic". *The Palm Pilot (often referred to simply as "Pilot") was the original model of the personal digital assistant (PDA), or handheld, computer manufactured and sold by US Robotics, then by its owner 3Com Corporation, later by its spinoff Palm, Inc., and now by ''its'' spinoff palmOne, Inc.. *Many appliances that use natural gas or propane as their fuel utilize a pilot light, which is a small outlet of gas kept continually burning and generally used to light the larger burners on the appliance. This is now more often replaced with electric ignition, such as a heating element. *A pilot fish (''Naucrates ductor'') is a small fish that often swims with sharks. *The Pilot Pen Corporation is a company whose headquarters are situated in Japan. They are one of the world's major manufacturers of pen. *"Pilot (short story)" is the title of a short story in science fiction author Stephen Baxter's Xeelee Sequence. *In telecommunications, a pilot signal (or pilot tone) is used as an indicator, such as to indicate the presence of FM stereo or AM stereo. *Pilot (PEZ Dispenser) is one of the unique PEZ dispensers. *Pilot (Fuel brand) is a brand of Automotive fuel. *Pilot (Pens) is a brand of famous pens, found mainly in Australia and New Zealand. PILOT can also be an acronym: *In computer science, PILOT programming language is a programming language that was intended for use in computer-aided instruction. *In public finance, a PILOT (finance) is a payment in lieu of taxes.

See other meanings of words starting from letter:

P

PA | PB | PC | PD | PE | PF | PG | PH | PI | PJ | PK | PL | PM | PN | PO | PR | PS | PT | PU | PW | PX | PY | PZ |

Words begining with Pilot:

PILOT
Pilot
Pilot's_Badge
Pilot-induced_oscillation
Pilot-to-scale
Pilot101
Pilota
Pilotage
Pilote
Pilothouse
Piloti
Pilotjj1
PilotLinux
PilotLinux_project
PilotPrecise
PilotPrecise
Pilots
Pilotstars
Pilottone
Pilottown,_LA
Pilottown,_Louisiana
PilotWings
PilotWings
Pilotwings
Pilotwings
PilotWings_64
Pilotwings_64
Pilot_(Drake_and_Josh)
Pilot_(Farscape)
PILOT_(finance)
Pilot_(harbour)
Pilot_(Joey)
Pilot_(locomotive)
Pilot_(locomotive)
Pilot_(Race)_(Farscape)
Pilot_(race)_(Farscape)
Pilot_(short_story)
Pilot_(spaceflight)
Pilot_(tv)
Pilot_ACE
Pilot_Badge
Pilot_boat
Pilot_Candidate
Pilot_certificates
Pilot_certification_in_the_United_States
Pilot_Controlled_Lighting
Pilot_crater
Pilot_Droid
Pilot_episode
Pilot_episodes
Pilot_fish
Pilot_gig
Pilot_gigs
Pilot_Grove,_Missouri
Pilot_Grove,_MO
Pilot_Grove_Township,_Minnesota
Pilot_Grove_Township,_MN
Pilot_Guides
Pilot_Hill
Pilot_Knob,_Missouri
Pilot_Knob,_MO
Pilot_licences
Pilot_licences
Pilot_licenses
Pilot_licensing_and_certification
Pilot_licensing_and_certification
Pilot_licensing_in_Canada
Pilot_licensing_in_the_United_Kingdom
Pilot_Linux
Pilot_Mound,_IA
Pilot_Mound,_Iowa
Pilot_Mound_Township,_Minnesota
Pilot_Mound_Township,_MN
Pilot_Mountain
Pilot_Mountain,_NC
Pilot_Mountain,_North_Carolina
Pilot_Mountain_State_Park
Pilot_Officer
Pilot_officer
Pilot_Point
Pilot_Point,_AK
Pilot_Point,_Alaska
Pilot_Point,_Alaska
Pilot_Point,_Texas
Pilot_Point,_TX
PILOT_programming_language
Pilot_programming_language
Pilot_Project_on_''Children_used_by_adults_in_the_commission_of_crime''
Pilot_Project_on_Children_used_by_adults_in_the_commission_of_crime
Pilot_project_on_Delivery_of_water_to_households_far_from_sources_of_safe_water
Pilot_Rock,_OR
Pilot_Rock,_Oregon
Pilot_signal
Pilot_Station,_AK
Pilot_Station,_Alaska
Pilot_Station,_Alaska
Pilot_tone
Pilot_Town,_LA
Pilot_Town,_Louisiana
Pilot_valve
Pilot_wave
Pilot_wave_theory
Pilot_Whale
Pilot_Whale
Pilot_whale
Pilot_whales
Pilot_X-Files_Episode
Pilot_XFiles
Pilot�s_Badge