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## 6.4 T-Z

 `1C0D7` ` x%T` `( x y → 100y/x )` Percent of Total Function `--` Returns the percent of the level 2 argument that is represented by the level 1 argument. `--` `x y → 100y/x` `x 'sym' → '%T(x,sym)'` `'sym' x → '%T(sym,x)'` `'sym1' 'sym2' → '%T(sym1,sym2)'` `x_u1 y_u2 → 100y_u2/x_u1` `x_u 'sym' → '%T(x_u,sym)'` `'sym' x_u → '%T(sym,x_u)'` `--` Related: %,%ch `225BE` ` x->TAG` `( ob tag → :tag:ob )` Stack to Tag Cmd `--` Combines objects in levels 1 and 2 to created tagged (labeled) object. Tag may be any object. It will eb converted to a string. `--` Related: `→ARRY`,DTAG,→LIST,OBJ→, →STR,→UNIT UserRPL: `x→TAG` `1B55E` ` xTAN` `( x → x' )` Tangent Analytic Func `--` Returns the tangent of the argument. `--` `z → tan z` `'sym' → 'TAN(symb)'` `x_unitang → tan(x_unitang)` `-` Related: ATAN,COS,SIN `1B655` ` xTANH` `( x → x' )` Hyperbolic Tangent Analytic Func `--` Returns the hyperbolic tangent of the argument. `--` `z → tanh z` `'sym' → 'TANH(sym)'` `-` Related: ATANH,COSH,SINH `20B20` ` xTAYLR` `( symb var n → symb' )` Taylor's Polynomial Cmd `--` Calculates the nth order Taylor's polynomial of 'symb' in the variable var. `--` Related: ∂,∫,`Σ` `1E606` ` xTEXT` `( → )` Show Stack Display Cmd `--` Displays the stack display. `--` Related: PICTURE,`PVIEW` `22EFA` ` xTHEN` `( 0/1 → )` THEN Cmd `--` Starts the true-clause in conditional or error-trapping structure `--` Related: CASE,ELSE,`END`,IFERR `237A8` ` xTHENCASE` THEN in a CASE statement. `--` Related: CASE,ELSE,`END`,IFERR UserRPL: `xTHEN` `2371F` ` xERRTHEN` THEN in an ON `ERROR` construct. `--` Related: CASE,ELSE,`END`,IFERR UserRPL: `xTHEN` `1982D` ` xTICKS` `( → # )` Ticks Cmd `--` Returns the system time as a binary integer, in units of 1/8192 second. `--` Related: TIME `197F7` ` xTIME` `( → time )` Time Cmd `--` Returns the system time in the form HH.MMSSs. `--` Related: `DATE`,TICKS,TSTR `198BE` ` xSETTIME` `( time → )` Set System Time Cmd `--` Sets the system time. `--` Related: `CLKADJ`,→DATE UserRPL: `x→TIME` `1E3C2` ` xTLINE` `( (x1,y1) (x2,y2) → )` `( {#n1 #m1} {#n2 #m2} → )` Toggle Line Cmd `--` For each pixel along the line in PICT defined by the specified coordinates, TLINE turns off every pixel that is on, and turns on every pixel that is off. `--` Related: ARC,BOX,LINE `2115D` ` xTMENU` `( % → [InitMenu%] )` `( {} → )` `( name → )` `( Ob → [@LIST InitMenu] )` Temporary Menu Cmd `--` Displays a built-in menu, libary menu, or a user-defined menu. `--` Related: MENU,RCLMENU `1FEEA` ` xTOT` `( → xsum )` `( → {x1...xn} )` Total Cmd `--` Computes the sum of each of the m columns of coordinate values in the current stat matrix (reserved variable ΣDAT). `--` TEXT:Reserved|ΣDAT `--` Related: `MAXΣ`,`MINΣ`,MEANMPSDEV, PVAR,`SDEV`,`VAR` `2204C` ` xTRANSIO` `( n → )` I/O Translation Cmd `--` Specifies the character translation option. These translations affect only ASCII Kermit transfer and files printed to the serial port. `--` Related: BAUD,CKSM,PARITY `1D392` ` xTRN` `( [[]] → [[]]' )` `( name → )` Transpose Matrix Cmd `--` Returns the (conjugate) transpose of a matrix. `--` Related: CONJ `1BDD1` ` xTRNC` `( x n → )` Truncate Func `--` Truncates an object to a specified number of decimal places or significant digits, or to fit the current display format. `--` `z1 ntrnc → z2` `z1 'symtrnc' →` `'TRNC(z1,symtrnc)'` `'sym1' ntrnc →` `'TRNC(sym1,ntrnc)'` `'sym1' 'symtrnc' →` `'TRNC(sym1,symtrnc)'` `[ arr ]1 ntrnc → [ arr ]2` `x_u ntrnc → y_u` `x_u 'symtrnc' →` `'TRNC(x_u,symtrnc)'` `--` Related: RND `1E6E1` ` xTRUTH` `( → )` Truth Plot Type Cmd `--` Sets the plot type to `TRUTH`. `--` Related: `BAR`,`CONIC`,DIFFEQ,`FUNCTION`, GRIDMAP,`HISTOGRAM`,`PARAMETRIC`,PARSURFACE, PCONTOUR,`POLAR`,`SCATTER`,SLOPEFIELD,WIREFRAME,YSLICE `19992` ` xTSTR` `( date time → \$ )` Date and Time String Cmd `--` Returns a string derived from the date and time. `--` Related: `DATE`,TICKS,TIME `1A1AF` ` xTVARS` `( ntype → {} )` `( {n...} → {} )` Typed Variables Cmd `--` Lists all global variables in the current directory that contain objects of the specified types. `--` Related: PVARS,`TYPE`,VARS `1CB86` ` xTYPE` `( ob → %type )` Type Cmd `--` Returns the type number of an object. `--` User Objects: `--` `Object Type Number` `------ ---- ------` `Real number 0` `Complex number 1` `Character string 2` `Real Array 3` `Complex Array 4` `List 5` `Global name 6` `Local name 7` `Program 8` `Algebraic Object 9` `Binary Integer 10` `Graphics object 11` `Tagged object 12` `Unit object 13` `XLIB name 14` `Directory 15` `Library 16` `Backup object 17` `--` `Built-in Cmds:` ` --` `Object Type Number` `------ ---- ------` `Built-in function 18` `Built-in command 19` ` --` `System Objects:` ` --` `Object Type Number` `------ ---- ------` `System binary 20` `Extended real 21` `Extended complex 22` `Linked array 23` `Character 24` `Code object 25` `Library data 26` `External object 26-31` `--` Related: `SAME`,TVARS,VTYPE `19771` ` xUBASE` `( u → u' )` Convert to SI Base Units Func `--` Converts a unit object to SI base units. `--` `x_u → y_base-units` `'sym' → 'UBASE(symb)'` `--` Related: CONVERT,UFACT,→UNIT,UVAL `197A5` ` xUFACT` `( u1 u2 → u3 )` Factor Unit Cmd `--` Factors the level 1 unit from the unit expression of the level 2 unit object. `--` Related: CONVERT,`UBASE`,→UNIT,UVAL `1974F` ` x>UNIT` `( x u → u' )` Stack to Unit Object Cmd `--` Creates a unit object from a real number and the unit part of a unit object. `--` Related: `→ARRY`,→LIST,→STR,→TAG UserRPL: `x→UNIT` `230ED` ` xUNTIL` `( → )` `UNTIL` Cmd `--` Starts test-clause in `DO ... UNTIL ... END` indefinite loop structure. `--` See the `DO` entry for syntax info. `--` Related: `DO`,`END` `1A15B` ` xUPDIR` `( → )` Up Directory Cmd `--` Makes the parent of the current directory the new current directory. `--` Related: CRDIR,HOME,PATH,PGDIR `2001A` ` xUTPC` `( n x → x' )` Upper Chi-Square Distribution Cmd `--` Returns the probability utpc(n,x) that a chi-square random variable is greater than x, where n is the number of degrees of freedom of the distribution. `--` Related: UTPF,UTPN,UTPT `2005A` ` xUTPF` `( n1 n2 x → x' )` Upper Snedecor's F Distrib. Cmd `--` Returns the probability utpf(n1,n2,x) that a Snedecor's F random variable is greater than x, where n1 and n2 are the numerator and denominator degrees of freedom of the F distribution. `--` Related: UTPC,UTPN,UTPT `2003A` ` xUTPN` `( n v x → x' )` Upper Normal Distribution Cmd `--` Returns the probability utpn(m,v,x) that a normal random variable is greater than x, where m and v are the mean and variance, respectively, of the normal distribution. `--` Related: UTPC,UTPF,UTPT `2007A` ` xUTPT` `( n x → x' )` Upper Student's t Distrib. Cmd `--` Returns the probability utpt(n,x) that a Student's t random variable is greater than x, where n is the number of degrees of freedom of the distribution. `--` Related: UTPC,UTPF,UTPN `1971B` ` xUVAL` `( u → x )` Unit Value Func `--` Returns the numerical part of a unit object. `--` `x_u → x` `'sym' → 'UVAL(sym)'` `--` Related: CONVERT,`UBASE`,UFACT,→UNIT `1DD06` ` xV>` `( []/() → x y )` `( []/() → x y z )` `(in current co-system)` Vector/Complex Num to Stack Cmd `--` `[ x y ] → x y` `[ xr ANGyθ ] → xr yθ` `[ x1 x2 x3 ] → x1 x2 x3` `[ x1 ANGxθ xz ] → x1 xθ xz` `[ x1 ANGxθ ANGxÔÕ] → x1 xθ xÔÕ` `[ x1 x2 ... xn ] → x1 ... xn` `(x,y) → x y` `(xr ANGyθ) → xr yθ` `--` Related: →V2,→V3 UserRPL: `xV→` `1DE66` ` x>V2` `( x y → [] )` `( x y → () )` Stack to Vector/Complex Num Cmd `--` Converts two numbers from the stack into a 2-element vector or complex number. `--` Related: V→,→V3 UserRPL: `x→V2` `1DEC2` ` x>V3` `( x y z → [] )` Stack to 3-Element Vector Cmd `--` Converts three numbers into a 3-element vector. `--` Related: V→,→V2 UserRPL: `x→V3` `1FF05` ` xVAR` `( → x )` `( → [x1...xn] )` Variance Cmd `--` Calculates the sample variance of the coordinate values in each of the m columns in the current stat matrix (ΣDAT). `--` Related: `MAXΣ`,`MEAN`,`MINΣ`,PSDEV,PVAR, `SDEV`,`TOT` `1A194` ` xVARS` `( → {} )` Variables Cmd `--` Returns a list of all variables' names in the `VAR` menu (the current directory). `--` Related: ORDER,PVARS,TVARS `1CE28` ` xVTYPE` `( name → n )` Variable Type Cmd `--` Returns the type number of the object contained in the named variable. `--` `'name' → ntype` `:nport:namebackup → ntype` `:nport:nlibrary → ntype` `--` Related: `TYPE` `1A71F` ` xWAIT` `( sec → )` `( 0 → rc.p )` Wait Cmd `--` Suspends program execution for specified time, or until a key is pressed. `--` Related: KEY `23033` ` xWHILE` `( → )` `WHILE` Indefinite `Loop` Struct Cmd `--` Starts the `WHILE ... REPEAT ... END` indefinite loop structure. `--` Related: `DO`,`END`,`REPEAT` `19848` ` xWSLOG` `( → \$ \$ \$ \$ )` `Warmstart` Log Cmd `--` Returns four strings recording the date, time, and cause of the four most recent warmstart events `1FE2D` ` xSUMX2` `( → xsum )` Sum of Squares of x-Values Cmd `--` Sums the squares of the values in the independent-variable column of the current stat matrix (reserved variable ΣDAT). `--` TEXT:Reserved|ΣDAT `--` Related: `NΣ`,`XCOL`,`ΣX`,`ΣXY`,`ΣX2`,`ΣY`,`ΣY2` UserRPL: `xΣX2` `1FFDA` ` xXCOL` `( n → )` Independent Column Cmd `--` Specifies the independent variable column of the current stat matrix (reserved variable ΣDAT). `--` TEXT:Reserved|ΣDAT `21E75` ` xXMIT` `( \$ → 1 )` `( \$ → \$rest 0 )` Serial Transmit Cmd `--` Sends a string serially without using Kermit protocol, and returns a single digit that indicates whether the transmission was successful. `--` Related: BUFLEN,SBRK,SRECV,STIME `1E8F6` ` xXOR` `( # #' → #" )` `( \$ \$' → \$" )` `( 1/0 1/0 → 1/0 )` Exclusive `OR` Cmd `--` Returns the logical exclusive `OR` of two arguments. `#n1 #n2 → #n3` `"str1" "str2" → "str3"` `T/F1 T/F2 → 0/1` `T/F 'sym' → 'T/F XOR sym'` `'sym' T/F → 'sym XOR T/F'` `'sym1' 'sym2' → 'sym1 XOR sym2'` `--` Related: `AND`,`OR`,`NOT` `1BC45` ` xXPON` `( % → n )` Exponent Func `--` Returns the exponent of the arg. `--` Related: MANT,SIGN `1E621` ` xXRNG` `( x1 x2 → )` x-Axis Display Range Cmd `--` Specifies the x-axis display range. `--` Related: `AUTO`,PDIM,PMAX,PMIN,YRNG `1B1CA` ` xXROOT` `( y x → Y' )` xth Root of y Cmd `--` Computes the xth root of a real number. `y x → x ROOT y` `'sym1' 'sym2' → 'XROOT(sym2,sym1)'` `'sym' x → 'XROOT(x,sym)'` `y 'sym' → 'XROOT(sym,y)'` `y_u x → x ROOT y_u1/x` `y_u 'sym' → 'XROOT(sym,y_u)'` `1FE63` ` xSUMXY` `( → xsum )` Sum of x Times Y Cmd `--` Sums the products of the corresponding values in the independent and dependent variable columns of the current stat matrix (reserved variable ΣDAT). `--` TEXT:Reserved|ΣDAT `--` Related: `NΣ`,`XCOL`,`ΣX`,`ΣX2`,`ΣY`,`ΣY2` UserRPL: `xΣXY` `1FE12` ` xSUMY` `( → xsum )` Sum of y-Values Cmd `--` Sums the values in the dependent variable column of the current stat matrix (reserved var ΣDAT). `--` TEXT:Reserved|ΣDAT `--` Related: `NΣ`,`XCOL`,`ΣX`,`ΣXY`,`ΣX2`,`ΣY2` UserRPL: `xΣY` `1FE48` ` xSUMY2` `( → xsum )` Sum of Squares of y-Values Cmd `--` Sums the squares of the values in the dependent-variable column of the current stat matrix (reserved variable ΣDAT). `--` TEXT:Reserved|ΣDAT `--` Related: `NΣ`,`XCOL`,`ΣX`,`ΣXY`,`ΣX2`,`ΣY` UserRPL: `xΣY2` `1FFFA` ` xYCOL` `( n → )` Dependent Column Cmd `--` Specifies the dependent-variable column of the current stat matrix (reserved variable ΣDAT). `--` TEXT:Reserved|ΣDAT `--` Related: BARPLOT,BESTFIT,`COLΣ`,`CORR`, `COV`,EXPFIT,HISTPLOT,LINFIT,LOGFIT, LR,`PREDX`,PREFY,PWRFIT,SCATRPLOT,`XCOL` `1E641` ` xYRNG` `( y1 y2 → )` y-Axis Display Range Cmd `--` Specifies the y-axis display range. `--` Related: `AUTO`,PDIM,PMAX,PMIN,XRNG

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