MATLAB Function Reference Volume 1: A - E - Bad Request

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datestr 2datestr Purpose Date string format Syntax str = datestr(DT,dateform) str = datestr(DT,dateform,P) Description The datestr function converts serial date numbers (defined by datenum) and date vectors (defined by datevec) into date strings. 2-370 str = datestr(DT,dateform) converts a single date vector, or each element of an array of serial date numbers to a date string. Date strings with two-character years, e.g., 12-june-12, are assumed to lie within the 100-year period centered about the current year. str = datestr(DT,dateform,P) uses the specified pivot year as the starting year of the 100-year range in which a two-character year resides. The default pivot year is the current year minus 50 years. The optional argument dateform specifies the date format of the result. dateform can be either a number or a string: dateform (number) dateform (string) Example 0 'dd-mmm-yyyy HH:MM:SS' 01-Mar-2000 15:45:17 1 'dd-mmm-yyyy' 01-Mar-2000 2 'mm/dd/yy' 03/01/00 3 'mmm' Mar 4 'm' M 5 'mm' 03 6 'mm/dd' 03/01 7 'dd' 01 8 'ddd' Wed 9 'd' W 10 'yyyy' 2000
dateform (number) dateform (string) Example 11 'yy' 00 12 'mmmyy' Mar00 13 'HH:MM:SS' 15:45:17 14 'HH:MM:SS PM' 3:45:17 PM 15 'HH:MM' 15:45 16 'HH:MM PM' 3:45 PM 17 'QQ-YY' Q1-01 18 'QQ' Q1 19 'dd/mm' 01/03 20 'dd/mm/yy' 01/03/00 21 'mmm.dd.yyyy HH:MM:SS' Mar.01,2000 15:45:17 22 'mmm.dd.yyyy' Mar.01.2000 23 'mm/dd/yyyy' 03/01/2000 24 'dd/mm/yyyy' 01/03/2000 25 'yy/mm/dd' 00/03/01 26 'yyyy/mm/dd' 2000/03/01 27 'QQ-YYYY’ Q1-2001 28 'mmmyyyy' Mar2000 29 (ISO 8601) 'yyyy-mm-dd' 2000-03-01 30 (ISO 8601) 'yyyymmddTHHMMSS' 20000301T154517 31 'yyyy-mm-dd HH:MM:SS' 2000-03-01 15:45:17 datestr 2-371
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MATLAB® MATLAB Function Reference
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1 Functions By Category Development
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Functions By Category 1
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Development Environment Development
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ls List directory on UNIX matlabroo
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Mathematics Mathematics Functions f
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Slash or right matrix divide ' Tran
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Matrix Analysis cond Condition numb
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atan, atanh Inverse tangent and inv
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Correlation corrcoef Correlation co
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Convex Hull convhull Convex hull co
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etainc Incomplete beta function bet
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Tree Operations etree Elimination t
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permute Rearrange dimensions of mul
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int8 Convert to signed 8-bit intege
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Array Manipulation : Specify range
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itxor Bit-wise XOR Relational Opera
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evalc Evaluate MATLAB expression wi
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methodsview Display information on
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open Open files of various types us
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Microsoft WAVE Sound Functions wavp
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gtext Place text on 2-D graph using
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tsearch Search for enclosing Delaun
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3-D Visualization 3-D Visualization
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• Selecting Region of Interest Co
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Creating Graphical User Interfaces
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Controlling Program Execution uires
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Alphabetical List of Functions 2
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axis . . . . . . . . . . . . . . .
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clear . . . . . . . . . . . . . . .
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dbup . . . . . . . . . . . . . . .
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expm . . . . . . . . . . . . . . .
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Arithmetic Operators + - * / \ ^ '
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See Also all, any, find, strcmp Rel
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Logical Operators & | ~ expression
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Special Characters [ ] ( ) {} = ' .
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2Colon : Purpose Create vectors, ar
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2abs Purpose Absolute value and com
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Algorithm acos and acosh use these
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Algorithm acot and acoth use these
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See Also csc, csch acsc, acsch 2-33
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actxcontrol Note There are two ways
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actxserver 2actxserver Purpose Crea
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fig=figure; set(fig,'DoubleBuffer',
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Verify that the files were added to
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[W,ierr] = airy(k,Z) also returns a
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2all Purpose Test to determine if a
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2allchild Purpose Find all children
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• 'rand' - set the AlphaData prop
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2alphamap Purpose Specify the figur
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2angle Purpose Phase angle Syntax P
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2any Purpose Test for any nonzeros
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2area Purpose Area fill of a two-di
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2asec, asech Purpose Inverse secant
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2asin, asinh Purpose Inverse sine a
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2assignin Purpose Assign a value to
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2atan, atanh Purpose Inverse tangen
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2atan2 Purpose Four-quadrant invers
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2audioplayer Purpose Create an audi
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Property Description Type Type Name
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Method Description audiorecorder is
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audiorecorder Examples Example 1 Us
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2auwrite Purpose Write NeXT/SUN (.a
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Parameter Value Default You can als
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2aviinfo Purpose Return information
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2aviread Purpose Read an Audio Vide
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While the basic purpose of an axes
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In this example, the first plot occ
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Property Name Property Description
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Axes Properties objects in the axes
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CameraView Angle [0 1 0] (positive
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Color {none} | ColorSpec Axes Prope
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X-, Y-, Z-Limits following table de
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Axes Properties FontName A name suc
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Axes Properties When a handle’s v
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Axes Properties • replacechildren
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Axes Properties define object handl
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Visible {on} | off Axes Properties
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XMinorGrid, YMinorGrid, ZMinorGrido
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2axis Purpose Axis scaling and appe
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Examples The statements axis off tu
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5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 axis(
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2balance Purpose Improve accuracy o
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Now the eigenvectors are well behav
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ar, barh distinct elements and show
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See Also bar3, ColorSpec, patch, st
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ar3, bar3h •'stacked' displays on
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See Also bar, LineSpec, patch 1 0.5
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2beep Purpose Produce a beep sound
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[H,ierr] = besselh(...) also return
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esseli, besselk and the other is a
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2besselj, bessely Purpose Bessel fu
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0.19602657795532 0.28670098806392 0
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1/168 1/252 1/360 1/495 1/660 In th
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Examples Example 1. bicg(afun,b,tol
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flag = relres = iter = 1 1 0 The va
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4559 This time U2 is nonsingular an
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time to precondition and converge t
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Example Example 1. bicgstab bicgsta
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icgstab flag2 is 0 because bicgstab
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2bin2dec Purpose Binary to decimal
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2bitcmp Purpose Complement bits Syn
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2bitmax Purpose Maximum floating-po
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2bitset Purpose Set bit Syntax C =
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2bitxor Purpose Bit-wise XOR Syntax
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2blkdiag Purpose Construct a block
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2break Purpose Terminate execution
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2builtin Purpose Execute builtin fu
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parameters Optional. A vector that
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function dydx = twoode(x,y) dydx =
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fprintf('The fourth eigenvalue is a
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2bvpget Purpose Extract properties
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solinit is a structure with the fol
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Property Value Description Vectoriz
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2calendar Purpose Calendar Syntax c
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camdolly Remarks camdolly sets the
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Examples This example creates a lig
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See Also campos, camtarget camlooka
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end camorbit Rotation in the camera
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2campos Purpose Set or query the ca
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2camproj Purpose Set or query the p
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2camtarget Purpose Set or query the
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2camup Purpose Set or query the cam
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2camva Purpose Set or query the cam
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2camzoom Purpose Zoom in and out on
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2cart2pol Purpose Transform Cartesi
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2case Purpose Case switch Descripti
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2catch Purpose Begin catch block De
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each time they render. CData values
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The blue color of the ocean is the
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2cdf2rdf Purpose Convert complex di
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2cdfinfo Purpose Return details abo
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Column 5 - Record and Dimension Var
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Examples Read all of the data from
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2cell Purpose Create cell array Syn
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2cell2struct Purpose Convert cell a
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2cellfun Purpose Apply a function t
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2cellplot Purpose Graphically displ
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2cgs Purpose Conjugate Gradients Sq
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Alternatively, use this matrix-vect
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2char Purpose Create character arra
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2checkin Purpose Check file into so
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2checkout Purpose Check file out of
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Example 2 - Check out Multiple File
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Destroy the positive definiteness (
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cholinc michol stands for modified
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0 20 40 60 80 100 120 140 0 50 nz =
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cholinc For hilb(20), the Cholesky
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2cholupdate Purpose Rank 1 update t
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Compare chol with cholupdate: R1 =
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2clabel Purpose Contour plot elevat
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2class Purpose Create object or ret
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2clc Purpose Clear Command Window G
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clear keyword clears the items indi
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To clear all compiled M- and MEX-fu
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2clf Purpose Clear current figure w
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2clock Purpose Current time as a da
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See Also delete, figure, gcf must s
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2closereq Purpose Default figure cl
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2colamd Purpose Column approximate
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2colmmd Purpose Sparse column minim
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See Also colamd, colperm, lu, sppar
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colorbar See Also colormap 10 8 6 4
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2colormap Purpose Set and get the c
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The rgbplot function plots colormap
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2ColorSpec Purpose Color specificat
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2colperm Purpose Sparse column perm
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2comet3 Purpose Three-dimensional c
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2compass Purpose Plot arrows emanat
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2complex Purpose Construct complex
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2computer Purpose Identify informat
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2cond Purpose Condition number with
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2condest Purpose 1-norm condition n
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coneplot(...,'method') specifies th
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3. Add the Slice Planes coneplot
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2conj Purpose Complex conjugate Syn
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2contour Purpose Two-dimensional co
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3 2.5 2 1.5 1 0.5 0 −0.5 −1 −
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2contour3 Purpose Three-dimensional
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2contourc Purpose Low-level contour
Page 373 and 374: 2contourf Purpose Filled two-dimens
Page 375 and 376: 2contourslice Purpose Draw contours
Page 377 and 378: 3 2 1 0 −1 −2 −3 3 2 1 0 −1
Page 379 and 380: 2conv Purpose Convolution and polyn
Page 381 and 382: In practice however, conv2 computes
Page 383 and 384: 4 2 0 −2 −4 15 This figure comb
Page 385 and 386: 2convhull Purpose Convex hull Synta
Page 387 and 388: 2convhulln Purpose n-D convex hull
Page 389 and 390: 2convn Purpose N-dimensional convol
Page 391 and 392: 2copyobj Purpose Copy graphics obje
Page 393 and 394: 2corrcoef Purpose Correlation coeff
Page 395 and 396: Algorithm cos and cosh use these al
Page 397 and 398: Algorithm cot and coth use these al
Page 399 and 400: 2cplxpair Purpose Sort complex numb
Page 401 and 402: 2cross Purpose Vector cross product
Page 403 and 404: Algorithm csc and csch use these al
Page 405 and 406: 5 10 15 20 25 30 7 14 21 28 35 42 1
Page 407 and 408: 2cumprod Purpose Cumulative product
Page 409 and 410: 2cumtrapz Purpose Cumulative trapez
Page 411 and 412: 2curl Purpose Computes the curl and
Page 413 and 414: See Also streamribbon, divergence c
Page 415 and 416: 2cylinder Purpose Generate cylinder
Page 417 and 418: See Also sphere, surf 1 0.8 0.6 0.4
Page 419 and 420: daspect the window). This means set
Page 421 and 422: 2date Purpose Current date string S
Page 423: Examples Convert a date string to a
Page 427 and 428: 2datetick Purpose Label tick lines
Page 429 and 430: datetick('x',11) % Replace x-axis t
Page 431 and 432: ans = See Also clock, datenum, date
Page 433 and 434: See Also dbcont, dbdown, dbquit, db
Page 435 and 436: 2dbdown Purpose Change local worksp
Page 437 and 438: dblquad The integrnd function integ
Page 439 and 440: 2dbquit Purpose Quit debug mode Gra
Page 441 and 442: 2dbstatus Purpose List all breakpoi
Page 443 and 444: 2dbstop Purpose Set breakpoints in
Page 445 and 446: Examples The file buggy, used in th
Page 447 and 448: 2dbtype Purpose List M-file with li
Page 449 and 450: 2ddeadv Purpose Set up advisory lin
Page 451 and 452: 2ddeexec Purpose Send string for ex
Page 453 and 454: 2ddepoke Purpose Send data to appli
Page 455 and 456: 2ddereq Purpose Request data from a
Page 457 and 458: 2ddeterm Purpose Terminate DDE conv
Page 459 and 460: 2deal Purpose Deal inputs to output
Page 461 and 462: 2deblank Purpose Strip trailing bla
Page 463 and 464: 2dec2bin Purpose Decimal to binary
Page 465 and 466: 2deconv Purpose Deconvolution and p
Page 467 and 468: 2del2 Purpose Discrete Laplacian Sy
Page 469 and 470: See Also diff, gradient V = 4*del2(
Page 471 and 472: Visualization Use one of these func
Page 473 and 474: 1 0.5 0 −0.5 −1 15 delaunay Nex
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2delaunay3 Purpose 3-D Delaunay tes
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delaunay3 [2] National Science and
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3 9 1 5 2 9 1 6 2 3 9 4 2 3 9 1 7 9
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2delete Purpose Delete files or gra
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2delete (serial) Purpose Remove a s
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2depfun Purpose List the dependent
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depfun not examine the files on whi
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2det Purpose Matrix determinant Syn
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y = -0.0000 1.0000 -2.0000 1.0000 0
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2diag Purpose Diagonal matrices and
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2dialog Purpose Create and display
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2diff Purpose Differences and appro
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2dir Purpose Display directory list
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2disp Purpose Display text or array
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2display Purpose Overloaded method
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2divergence Purpose Computes the di
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2dlmread Purpose Read an ASCII deli
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2dmperm Purpose Dulmage-Mendelsohn
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2docopt Purpose Display location of
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To open the notepad editor and retu
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2double Purpose Convert to double-p
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2drawnow Purpose Complete pending d
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2dsearchn Purpose n-D nearest point
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2edit Purpose Edit or create M-file
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2eig Purpose Find eigenvalues and e
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Examples The matrix eigenvalues, it
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2eigs Purpose Find a few eigenvalue
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eigs(A,K,sigma,opts) and eigs(A,B,k
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[dum,ind] = sort(abs(d)); plot(dlm,
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(lambda - 4.0), where lambda is an
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2ellipj Purpose Jacobi elliptic fun
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2ellipke Purpose Complete elliptic
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2ellipsoid Purpose Generate ellipso
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2elseif Purpose Conditionally execu
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2end Purpose Terminate for, while,
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2eomday Purpose End of month Syntax
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2erf, erfc, erfcx, erfinv, erfcinv
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2error Purpose Display error messag
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errorbar(X,Y,E) 1.4 See Also LineSp
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displays this dialog box on a UNIX
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2etree Purpose Elimination tree Syn
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2eval Purpose Execute a string cont
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2evalc Purpose Evaluate MATLAB expr
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Limitation evalin cannot be used re
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If item is a Java class, then exist
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2exit Purpose Terminate MATLAB (sam
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2expint Purpose Exponential integra
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expm Notice that the diagonal eleme
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2ezcontour Purpose Easy to use cont
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ezcontour See Also contour, ezconto
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f( x, y) 31 ( - x) 2e x2 - ( y + 1)
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2ezmesh Purpose Easy to use 3-D mes
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2ezmeshc Purpose Easy to use combin
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2ezplot Purpose Easy to use functio
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2ezplot3 Purpose Easy to use 3-D pa
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2ezpolar Purpose Easy to use polar
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sqrt(x.^2 + y.^2); is written as: e
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2ezsurfc Purpose Easy to use combin
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See Also ezcontour, ezcontourf, ezm
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Symbols ! 2-22 - 2-10 % 2-22 & 2-20
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eta function (defined) 2-144 incomp
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colamd 2-277 colmmd 2-279 Color Axe
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dbclear 2-378 dbcont 2-380 dbdown 2
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ellipj 2-481 ellipke 2-483 elliptic
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help files, location for UNIX 2-457
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mldivide (M-file function equivalen
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sound files reading 2-76 writing 2-
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ZGrid, Axes property 2-114 ZLim, Ax
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