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

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clear (serial) 2clear (serial) Purpose Remove a serial port object from the MATLAB workspace Syntax clear obj Arguments Description clear obj removes obj from the MATLAB workspace. Remarks If obj is connected to the device and it is cleared from the workspace, then obj remains connected to the device. You can restore obj to the workspace with the instrfind function. A serial port object connected to the device has a Status property value of open. 2-268 obj A serial port object or an array of serial port objects. To disconnect obj from the device, use the fclose function. To remove obj from memory, use the delete function. You should remove invalid serial port objects from the workspace with clear. If you use the help command to display help for clear, then you need to supply the pathname shown below. help serial/private/clear Example This example creates the serial port object s, copies s to a new variable scopy, and clears s from the MATLAB workspace. s is then restored to the workspace with instrfind and is shown to be identical to scopy. s = serial('COM1'); scopy = s; clear s s = instrfind; isequal(scopy,s) ans = 1 See Also Functions delete, fclose, instrfind, isvalid Properties Status
2clf Purpose Clear current figure window Syntax clf clf reset Description clf deletes from the current figure all graphics objects whose handles are not hidden (i.e., their HandleVisibility property is set to on). clf reset deletes from the current figure all graphics objects regardless of the setting of their HandleVisibility property and resets all figure properties, except Position, Units, PaperPosition, and PaperUnits to their default values. Remarks The clf command behaves the same way when issued on the command line as it does in callback routines – it does not recognize the HandleVisibility setting of callback. This means that when issued from within a callback routine, clf deletes only those objects whose HandleVisibility property is set to on. See Also cla, clc, hold, reset clf 2-269
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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
Page 271 and 272: The blue color of the ocean is the
Page 273 and 274: 2cdf2rdf Purpose Convert complex di
Page 275 and 276: 2cdfinfo Purpose Return details abo
Page 277 and 278: Column 5 - Record and Dimension Var
Page 279 and 280: Examples Read all of the data from
Page 281 and 282: 2cell Purpose Create cell array Syn
Page 283 and 284: 2cell2struct Purpose Convert cell a
Page 285 and 286: 2cellfun Purpose Apply a function t
Page 287 and 288: 2cellplot Purpose Graphically displ
Page 289 and 290: 2cgs Purpose Conjugate Gradients Sq
Page 291 and 292: Alternatively, use this matrix-vect
Page 293 and 294: 2char Purpose Create character arra
Page 295 and 296: 2checkin Purpose Check file into so
Page 297 and 298: 2checkout Purpose Check file out of
Page 299 and 300: Example 2 - Check out Multiple File
Page 301 and 302: Destroy the positive definiteness (
Page 303 and 304: cholinc michol stands for modified
Page 305 and 306: 0 20 40 60 80 100 120 140 0 50 nz =
Page 307 and 308: cholinc For hilb(20), the Cholesky
Page 309 and 310: 2cholupdate Purpose Rank 1 update t
Page 311 and 312: Compare chol with cholupdate: R1 =
Page 313 and 314: 2clabel Purpose Contour plot elevat
Page 315 and 316: 2class Purpose Create object or ret
Page 317 and 318: 2clc Purpose Clear Command Window G
Page 319 and 320: clear keyword clears the items indi
Page 321: To clear all compiled M- and MEX-fu
Page 325 and 326: 2clock Purpose Current time as a da
Page 327 and 328: See Also delete, figure, gcf must s
Page 329 and 330: 2closereq Purpose Default figure cl
Page 331 and 332: 2colamd Purpose Column approximate
Page 333 and 334: 2colmmd Purpose Sparse column minim
Page 335 and 336: See Also colamd, colperm, lu, sppar
Page 337 and 338: colorbar See Also colormap 10 8 6 4
Page 339 and 340: 2colormap Purpose Set and get the c
Page 341 and 342: The rgbplot function plots colormap
Page 343 and 344: 2ColorSpec Purpose Color specificat
Page 345 and 346: 2colperm Purpose Sparse column perm
Page 347 and 348: 2comet3 Purpose Three-dimensional c
Page 349 and 350: 2compass Purpose Plot arrows emanat
Page 351 and 352: 2complex Purpose Construct complex
Page 353 and 354: 2computer Purpose Identify informat
Page 355 and 356: 2cond Purpose Condition number with
Page 357 and 358: 2condest Purpose 1-norm condition n
Page 359 and 360: coneplot(...,'method') specifies th
Page 361 and 362: 3. Add the Slice Planes coneplot
Page 363 and 364: 2conj Purpose Complex conjugate Syn
Page 365 and 366: 2contour Purpose Two-dimensional co
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Page 369 and 370: 2contour3 Purpose Three-dimensional
Page 371 and 372: 2contourc Purpose Low-level contour
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2contourf Purpose Filled two-dimens
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2contourslice Purpose Draw contours
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3 2 1 0 −1 −2 −3 3 2 1 0 −1
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2conv Purpose Convolution and polyn
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In practice however, conv2 computes
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4 2 0 −2 −4 15 This figure comb
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2convhull Purpose Convex hull Synta
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2convhulln Purpose n-D convex hull
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2convn Purpose N-dimensional convol
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2copyobj Purpose Copy graphics obje
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2corrcoef Purpose Correlation coeff
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Algorithm cos and cosh use these al
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Algorithm cot and coth use these al
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2cplxpair Purpose Sort complex numb
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2cross Purpose Vector cross product
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Algorithm csc and csch use these al
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5 10 15 20 25 30 7 14 21 28 35 42 1
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2cumprod Purpose Cumulative product
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2cumtrapz Purpose Cumulative trapez
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2curl Purpose Computes the curl and
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See Also streamribbon, divergence c
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2cylinder Purpose Generate cylinder
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See Also sphere, surf 1 0.8 0.6 0.4
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daspect the window). This means set
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2date Purpose Current date string S
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Examples Convert a date string to a
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dateform (number) dateform (string)
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2datetick Purpose Label tick lines
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datetick('x',11) % Replace x-axis t
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ans = See Also clock, datenum, date
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See Also dbcont, dbdown, dbquit, db
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2dbdown Purpose Change local worksp
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dblquad The integrnd function integ
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2dbquit Purpose Quit debug mode Gra
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2dbstatus Purpose List all breakpoi
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2dbstop Purpose Set breakpoints in
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Examples The file buggy, used in th
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2dbtype Purpose List M-file with li
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2ddeadv Purpose Set up advisory lin
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2ddeexec Purpose Send string for ex
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2ddepoke Purpose Send data to appli
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2ddereq Purpose Request data from a
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2ddeterm Purpose Terminate DDE conv
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2deal Purpose Deal inputs to output
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2deblank Purpose Strip trailing bla
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2dec2bin Purpose Decimal to binary
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2deconv Purpose Deconvolution and p
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2del2 Purpose Discrete Laplacian Sy
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See Also diff, gradient V = 4*del2(
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Visualization Use one of these func
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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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