System Variable RL

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⎕RL - Random Link

Changing ⎕RL means modifying the random seed. If the same random number is ALWAYS generated thru - deal ? - the first time an APL workspace is loaded, then reset
⎕RL←# to some [long] integer value prior to using the deal function.
        ⍝Comment - Sample initial or default APL workspace ⎕RL value:
        ⎕RL
1745365914586

If necessary, set ⎕RL to - some current Date-Time value converted to a Long Integer - to help achieve true randomness before APL function ? deal gets used/called. Resetting ⎕RL or random seed may not be necessary in all APL implementations, such as NARS2000.

⎕RL←# Set RANDOM LINK Generator prior to using function ? >> Initial Starting Value where ? or Random Number Generator needs to be truly randomized - Not Always Needed!
System Variables (A value may be assigned to these except for ⎕DM)
ALX CT DM DT ELX FC FEATURE FPC IC IO
LX PP PR PW RL SA WSID
Niladic System Functions (a value cannot be assigned to these)
A AV EM ET LC NNAMES NNUMS SYSID SYSVER T
TC TCBEL TCBS TCESC TCFF TCHT TCLF TCNL TCNUL TS
WA
Monadic or dyadic system functions (a value cannot be assigned to these)
AT CR DC DL DR EA EC ERROR ES EX
FMT FX MF NAPPEND NC NCREATE NERASE NINFO NL NLOCK
NREAD NRENAME NREPLACE NRESIZE NSIZE NTIE NUNTIE STOP TF TRACE
UCS VR
Note that quad functions and variables are case insensitive


See Also
System Commands System Variables and Functions Operators
Keyboard
A+S
Alt ¨ ¯ < > × ÷
Sh ~ ! @ # $ % ^ & * ( ) _ +
Key ` 1 2 3 4 5 6 7 8 9 0 - =
A+S
Alt ? π
Sh Q W E R T Y U I O P { } |
Key q w e r t y u i o p [ ] \
A+S §
Alt '
Sh A S D F G H J K L : "
Key a s d f g h j k l ; '
A+S
Alt
Sh Z X C V B N M < > ?
Key z x c v b n m , . /
NARS 2000 Lang
Tool
Bar
+ - × ÷ * ! ? |
= < >
~ § π .. ,
/ \ ¨ .
_ ¯ Ø b e g p r v x