0520AB |
~xHEAD
|
( {} → ob )
( $ → $' )
First Listed Element Cmd
--
Returns the first element of a
list or string.
--
Related: TAIL
|
044701 |
~xHELP
|
|
3C2E5 |
xHMS-
|
( hms1 hms2 → hms3 )
Hours-Minutes-Seconds Minus Cmd
--
Returns the difference of two
real number, where the arguments
and the result are interpreted in
hours-minutes-seconds format.
--
Related: HMS→,→HMS,HMS+
|
3C2CB |
xHMS+
|
( hms1 hms2 → hms3 )
Hours-Minutes-Seconds Plus Cmd
--
Returns the sum of two real number,
where the arguments and the
result are interpreted in
hours-minutes-seconds format.
--
Related: HMS→,→HMS,HMS-
|
3C27B |
x>HMS
|
( x → x' )
Decimal to Hours-Minutes-Seconds
Cmd
--
Converts a real number representing
hours or degrees with a decimal
fraction to hours-minutes-seconds format.
--
Related: HMS→,HMS+,HMS-
UserRPL: x→HMS
|
3C2A7 |
xHMS>
|
( x → x' )
Hours-Min-Sec to Decimal Cmd
--
Converts a real number in hours
-minutes-seconds format to its
decimal form (hours or degrees
with a decimal fraction.
--
Related: →HMS,HMS+,HMS-
UserRPL: xHMS→
|
3AB7D |
xi
|
( → i )
|
3E416 |
xIF
|
( → )
IF Conditional Structure Cmd
--
Starts IF ... THEN ... END and
IF ... THEN ... ELSE ... END
conditional structures.
--
IF →
THEN T/F →
END →
→
IF →
THEN T/F →
ELSE →
END →
--
Related: CASE,ELSE,END,IFERR,THEN
|
3EB17 |
xIFERR
|
( → )
If Error Conditional Struct Cmd
--
Starts IFERR ... THEN ... END and
IFERR ... THEN ... ELSE ... END
error trapping structures.
--
Related: CASE,ELSE,END,IF,THEN
|
3A569 |
xIFT
|
( 0/1 obj → ? )
IF-THEN Cmd
--
Executes obj if T/F is nonzero.
Discards obj if T/F is zero.
--
Related: IFTE
|
3A475 |
xIFTE
|
( 0/1 objT objF → ? )
IF-THEN-ELSE Cmd
--
Executes objT if T/F is nonzero.
Discards objF if T/F is zero.
--
Related: IFT
|
3AB7D |
xi
|
( → i )
|
3CA86 |
xIM
|
( (x,y) → y )
( [] → []' )
Imaginary Part Func
--
Returns the imaginary part of its
(complex) argument.
--
x → 0
(x,y) → y
[ R-arr ] → [ R-arr ]
[ C-arr ] → [ R-arr ]
'sym' → 'IM(sym)'
--
Related: C→R,RE,R→C
|
3B528 |
xINV
|
( x → 1/x )
( [[]] → [[]]' )
Inverse (1/x) Analytic Func
--
Returns the reciprocal or the
matrix inverse.
--
Related: SINV,/
|
3BE01 |
xIP
|
( x → n )
Integer Part Func
--
Returns the integer part of the
argument.
--
x → n
x_u → n_u
'sym' → 'IP(sym)'
--
Related: FP
|
3DAA0 |
xISOL
|
( symb var → symb' )
Isolate Variable Cmd
--
Returns an algebraic symb' that
rearranges symb to "isolate"
the first occurrence of variable
var.
--
Related: COLCT,EXPAN,QUAD,SHOW,SOLVE
|
3D905 |
xFORMUNIT
|
UserRPL: x_
|
3ED7E |
x'
|
|
3ED98 |
xENDTIC
|
UserRPL: x'
|
3ED4D |
x<<
|
UserRPL: x«
|
3ED68 |
x>>
|
UserRPL: x»
|
3A879 |
xKEY
|
( → rc 1 )
( → 0 )
Key Cmd
--
Returns to level 1 a test result,
and if a key is pressed, returns
to level 2 the row-column location
xn m of that key.
--
Related: WAIT,KEYEVAL
|
3A3A8 |
xKILL
|
( → )
Cancel Halted Programs Cmd
--
Cancels all currently halted
programs. (Halted programs are
typically canceled by pressing
PRG NXT RUN KILL.) If KILL is
executed within a program, that
program is also canceled.
--
Related: CONT,DOERR,HALT,PROMPT
|
3A662 |
xLAST
|
( → ob1 .. obn )
Last Arguments Cmd
--
Returns copies of the arguments
of the most recently executed
command.
UserRPL: xLASTARG
|
0000AB |
~xLININ
|
( symb var → 0/1 )
Linear Test Func
--
Tests whether an algebraic is
structurally linear for a given
variable.
|
3BBF7 |
xLN
|
( x → x' )
Natural Logarithm Analytic Func
--
Returns the natural (base e)
logarithm of the argument.
--
z → ln z
'sym' → 'LN(sym)'
--
Related: ALOG,EXP,ISOL,LNP1,LOG
|
3BD25 |
xLNP1
|
( x → x' )
Natural Log of x+1 Analytic Func
--
Returns ln (x + 1).
--
x → ln(x+1)
'sym' → 'LNP1(sym)'
--
Related: EXPM,LN
|
3BC69 |
xLOG
|
( x → x' )
Common Logarithm Analytic Func
--
Returns the common logarithm
(base 10) of the argument.
--
z → log z
'sym' → 'LOG(sym)'
--
Related: ALOG,EXP,ISOL,LN
|
00D0AB |
~xLQ
|
( [[]] → [[L]] [[Q]] [[P]] )
LQ Factorization of a Matrix Cmd
--
Returns the LQ factorization of
an n×m matrix.
--
Related: LSQ,QR
|
0060AB |
~xLSQ
|
( [B] [[A]] → []' )
( [[B]] [[A]] → [[]]' )
Least Squares Solution Cmd
--
Returns the minimum norm least
squares solution to any system of
linear equations where A × X = B
--
Related: LQ,RANK,QR,/
|
00B0AB |
~xLU
|
( [[]] → [[L]] [[U]] [[P]] )
LU Dec of a Sq. Matrix Cmd
--
Returns the LU decomposition of a square
matrix.
--
Related: DET,INV,LSQ,/
|
3C1F2 |
xMANT
|
( x → x' )
Mantissa Func
--
Returns the mantissa of the argument.
--
x → ymant
'sym' → 'MANT(sym)'
--
Related: SIGN,XPON
|
3D8C6 |
xMATCHDN
|
( symb {spat srepl} → symb' 0/1 )
( symb {spat srepl scond} → symb' 0/1 )
Match Pattern Down Cmd
--
Rewrites an expression.
--
Related: X↑MATCH
UserRPL: x↓MATCH
|
3D898 |
xMATCHUP
|
( symb {spat srepl} → symb' 0/1 )
( symb {spat srepl scond} → symb' 0/1 )
Bottom-Up Match and Replace Cmd
--
Rewrites an expression.
--
Related: X∇MATCH
UserRPL: x↑MATCH
|
3BF1E |
xMAX
|
( x y → x' )
Maximum Func
--
Returns the greater (more positive)
of the arguments.
--
x y → max(x, y)
x 'sym' → 'MAX(x, sym)'
'sym' x → 'MAX(sym, x)'
'sym1' 'sym2' → 'MAX(sym1, sym2)'
x_u1 y_u2 → max(x_u1, y_u2)
--
Related: MIN
|
3AB17 |
xMAXR
|
( → MAXR )
Maximum Real Func
--
Returns the symbolic constant
'MAXR' or its numerical
representation, 9.99999999999E499.
--
→ 'MAXR'
→ 9.99999999999E499
--
Related: Ee,i,MINR,π
|
3BFF9 |
xMIN
|
( x y → x' )
Minumum Func
--
Returns the lesser (more
negative) of its two arguments.
--
x y → min(x, y)
x 'sym' → 'MIN(x, sym)'
'sym' x → 'MIN(sym, x)'
'sym1' 'sym2' → 'MIN(sym1, sym2)'
x_u1 y_u2 → min(x_u1, y_u2)
--
Related: MAX
|
3AB39 |
xMINR
|
( → MINR )
Minimum Real Func
--
Returns the symbolic constant
'MINR' or its numerical representation,
1.00000000000E-499.
--
→ 'MAXR'
→ 1.00000000000E-499
--
Related: e,i,MAXR,π
|
3C1A3 |
xMOD
|
( x y → x' )
Modulo Func
--
Returns a remainder defined by:
x mod y = x - y floor (x/y)
--
x y → x mod y
x 'sym' → 'MOD(x, sym)'
'sym' x → 'MOD(sym, x)'
'sym1' 'sym2' → 'MOD(sym1, sym2)'
--
Related: FLOOR,/
|
04F0AB |
~xMSGBOX
|
( $ → )
Message Box Cmd
--
Creates a user-defined message
box.
--
Related: CHOOSE,INFORM,PROMPT
|