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Notes on iapl for msdos
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iapl ? display help
iapl /x start with apl ega graphics
iapl /a start in ascii mode
A _ s 2 3 r i6
assign A the numbers 1 to 6 in a 2x3 matrix
s means transposition, r is rho and i is itoa
note that s r and i are actually shifted characters
`1 negative 1
)CLEAR clears workspace
)FNS list all functions
)LIB list all workspace names
)LOAD TUTORIAL
runs tutorial
includes functions:
ASK ASKYN AV COL FACTORIAL FIB IOTA MAT NUB ODDS
OVER QLX SHOW SQU TRI WHERE
)LOAD USEFUL
WSDOC list functions in workspace
DDDOC display all functions
CMD 'DIR' execute dos command DIR
CMD '' drop to dos shell
)LOAD NEWS
)LOAD DDDEMO runs demo
)OFF exit iapl
!4 returns 24 (factorial of 4)
2 ! 4 choose 2 from 4, i.e. 6 (also known as binomial coefficient)
3*2 returns 9 (* is exponent)
missing
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)HELP
use HELP 'TOPIC' instead
e.g. HELP 'USEFUL' gives help on workspace USEFUL
keys
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shift 2 gives goto
shift 3 gives quad
shift 4 gives del
shift 5 gives divide
shift 7 gives quote quad
shift - gives assign
shift i gives iota
shift j gives jot
shift m gives domino
shift x gives multiply