\0 data \+ verbs \' adverbs \_ system verbs and nouns \. assign, define, control and debug \: i/o, dynamic load and client/server \` os commands, dialog boxes \a attributes, dependencies and triggers \g gui attributes \l f load script f.k \s f step script f.k \w workspace used, allocated, mapped \c [0|1] console [off|on] \e [0|1] error flag [off|on] \b [t|s] break flag [trace|stop|none] \d [d|^] k directory [go to] \v [d|^] variables [directory] \i [v] invalid [antecedents/dependents] \p [n] print precision [digits] \t [x] time [x] milliseconds \r [s] random seed \cd [d] O/S directory [go to] \[other] O/S execute \\ exit \(escape) ctrl-c(stop) \0 *** TRIM HERE FOR PERFECT SCROLLING *** Scalar Vector Empty Inf Null integer 0 1 2 !0 0I 0N float 0.0 1 2.0 0#0.0 0i 0n char " " "12" "" "\0" symbol ` `a`b 0#` lambda {} null _n (_n@i and _n?i are i; _n`v is _n) list (x;y;z) () is empty ,... is list of one dict .((symbol;value;attributes);...) !d symbols d[string] execute d[`v] d[] values d[`v.] d[.] attributes d.v is d`v is d[`v] is d@`v is d .,`v (also `d) ~`v attribute handle (`v.) 4:x type: atom(1 to 7)[ifcsdnx] list(0 to -4)[KIFCS] 5:x ascii representation \+ Dyad Monad + plus flip - minus negate * times first % divide reciprocal & min/and where | max/or reverse < less upgrade > more downgrade = equal group ^ power shape ! mod/rotate enumerate ~ match not , join enlist # take/reshape count _ drop/cut floor $ form/format format ? find/invert unique invert-guess @ at atom m-amend d-amend . dot value m-amend d-amend f[x] is f .,x is f@x is f x f[x;y] is f .(x;y) \' f' EACH d\: EACHLEFT d/: EACHRIGHT d': EACHPRIOR d/ OVER f/[init;...] RECUR d\ SCAN f\[init;...] TRACE m/ CONVERGE n m/ DO b m/ WHILE m\ CONVERGE n m\ DO b m\ WHILE f(function) d(dyadic) m(monadic) b(boolean) scatter selection vector' matrix' transitive closure vector/ vector\ state transition matrix/ matrix\ matrix': compose 2+ 8$ ~= ~< ~> *|:(first reverse) project pv:{[c;t;d]+/c*d^t} pv[c:.1 .1 1.1;t:1 2 3]d:%1.1 invert pv[c;t]?.97 pv[c;;d]?.98 pv[;t;d]?.99 modify @[0 0 0;1 1 0 2 2 0 1 2;+;!8] iterate 9{+':0,x,0}\1 9(|+\)\1 1.0 converge (1+%:)\1.0 {x\'!#x}parent:0 0 1 1 0 integrate +\2 3 4 *\2 3 4 differentiate -':0 2 5 9 %':1 2 6 24 verbs default to dyad. use(:) for monad, e.g. (<;<:) \_ Math: _log _exp _abs _sqr _sqrt _floor _dot _mul _inv _sin _cos _tan _asin _acos _atan _sinh _cosh _tanh y _lsq A is least squares x for y~+/A*x (i.e. Ax=y) Rand: x _draw y (from !y); x _draw -y (deal from !y); x _draw 0 (from (0,1)) Time: _t is gmt seconds. _lt is local from gmt, e.g. _gtime _lt _t _jd yyyymmdd (and _dj) for to and from julian day number (0 is monday) List: x _in y is 1 if x is an item of y; 0 otherwise (list: _lin) x _bin y is binary search for y in ascending x (list: _binl) x _dv y and x _di y to delete by value and index (list: _dvl) x _sv v (scalar from vector) and x _vs s (vector from scalar) _ci i (character from integer) and _ic c (integer from character) x _sm y is string match. y can have *?[^-], e.g. files _sm "*.[kK]" x _ss y is string/symbol search for start indices. y can have ?[^-]. _ssr[x;y;z] is string/symbol search and replace. z can be a function. _bd d (bytes from data) and _db b (data from bytes). linear form. _getenv v (v _setenv s) gets(sets) environment variable v. _host addr; _host name; _size file; _exit code. Vars: _d(dir) _v(var) _i(index) _t(second) _f(function) _n(null) _h(host) _p(port) _w(who) _u(user) _a(address) _k(version) _T(time) \. Dyad D-Amend Monad M-amend v::y (or v:y) .[`v;();:;y] v+:y .[`v;();+;y] v-: .[`v;();-:] v[i]+:y .[`v;,i;+;y] v[i]-: .[`v;,i;-:] v[i;j]+:y .[`v;(i;j);+;y] v[i;j]-: .[`v;(i;j);-:] @[v;i;d;y] is .[v;,i;d;y] @[v;i;m] is .[v;,i;m] {[a;b;c] ...} function definition x y z default parameters d:... local variable control(debug: ctrl-c stop) :[c;t;f] conditional if[c; ... ] do[n; ... ] while[c; ...] / ... comment \ ... trace(escape) : ... return(resume) ' ... signal trap signals with .[f;(x;y;z);:] and @[f;x;:] \: !directory list files(!"" root !"." current) 0:f f 0:x read/write text(` for console) 1:f f 1:x read/write data(default .l) 6:f f 6:x read/write bytes f 5:x append data, e.g. `log 5:,transaction f 5:n truncate file to n items (type;[,]delim)0:f [names+]delimited text( IFCSDTZ) (type;width)0:f fixedwidth text( IFCSDTZ) (type;width)1:f fixedwidth data(cbsijfd IFCSDZMm) Blank skips. S strips. f can be (f;index;length). client/server, k f -i 2001 Callback(default) w:3:(m;port) open .m.u users(all) w 3:msg set/asynch .m.s function(.:) w 4:msg get/synch .m.g function(.:) 3:w close .m.c expression("") .m.s .m.g and .m.c can access _w, _u(trunc to 8) and _a. m is `machine(localhost) or "ddd.ddd.ddd.ddd" or _a. default msg v, (v;i), (v;i;u) or (v;i;u;d). v can be string. can't write or message _fn, \kr fn or fn[;x] [f]2:(entry;argcount) dynamic load \` `3:string os set command, e.g. `3:"k bck" `4:string os get command, e.g. `4:"dir" dialog boxes f:`4:(`open;type[s][;title]) / (`open;`l`txt) f:`4:(`save;type[s][;title]) / (`save;`l`txt) x:`4:(`menu;IFS) / (`menu;`a`b`c) b:`4:(`okcancel;line[s][;title]) `4:(`ok;lines[s][;title]) / (`ok;("extreme";"speed")) \a Attributes Type h help string t trigger expression d dependency expression c class(display) symbol `data(default) atom, list, dict, list of lists, dict of lists `chart as above where atom is list of y values `plot as above where atom is matrix of (x;y) values `check 0 or 1 `radio symbol (one of ..o; see below) `button expression or dictionary of expressions `form dictionary of entries of any class(incl. `form) Triggers neither self-invalidate nor refire. Dependencies should have no side-effects and cannot loop. Triggers, dependencies and attributes can access _d _v and _i. Screen data updates can happen incrementally, i.e. change attrs first. \g `show$`v show variable v `hide$`v hide variable v Display attributes (for variables that have class). x width integer(KFONT width) y height integer(KFONT height) a arrangement nest of symbols(class `form) o options list of symbols(class `radio) l label string kl click label string (also klr) Data-display attributes (for variables that have class `data). functions (monadic, constant or array) default e editable 0 or 1 1 f format string from data 11$(11.2$) g getdata data from string 0$ etc. u update update[old;new] : fg foreground integer(rrggbb) 0 bg background integer(rrggbb) -1(808080) expressions/events (strings) ins, del, f1 ... f12, ctrl_a ... ctrl_z k, kr, kk click, click right, double click(precludes e)