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

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2 Alphabetical List of <strong>Function</strong>s 2-6 convhulln . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-333 convn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-335 copyfile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-336 copyobj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-337 corrcoef . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-339 cos, cosh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-340 cot, coth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-342 cov . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-344 cplxpair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-345 cputime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-346 cross . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-347 csc, csch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-348 csvread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-350 csvwrite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-352 cumprod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-353 cumsum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-354 cumtrapz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-355 curl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-357 customverctrl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-360 cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-361 daspect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-364 date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-367 datenum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-368 datestr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-370 datetick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-373 datevec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-376 dbclear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-378 dbcont . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-380 dbdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-381 dblquad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-382 dbmex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-384 dbquit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-385 dbstack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-386 dbstatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-387 dbstep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-388 dbstop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-389 dbtype . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-393
dbup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-394 ddeadv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-395 ddeexec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-397 ddeinit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-398 ddepoke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-399 ddereq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-401 ddeterm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-403 ddeunadv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-404 deal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-405 deblank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-407 dec2base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-408 dec2bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-409 dec2hex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-410 deconv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-411 default4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-412 del2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-413 delaunay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-416 delaunay3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-421 delaunayn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-424 delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-427 delete (activex) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-428 delete (serial) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-429 depdir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-430 depfun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-431 det . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-435 detrend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-436 deval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-438 diag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-439 dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-441 diary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-442 diff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-443 dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-445 disp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-447 disp (serial) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-448 display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-449 divergence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-451 dlmread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-453 2-7
Page 1 and 2:
MATLAB® MATLAB Function Reference
Page 3 and 4:
1 Functions By Category Development
Page 5 and 6:
Functions By Category 1
Page 7 and 8:
Development Environment Development
Page 9 and 10: ls List directory on UNIX matlabroo
Page 11 and 12: Mathematics Mathematics Functions f
Page 13 and 14: Slash or right matrix divide ' Tran
Page 15 and 16: Matrix Analysis cond Condition numb
Page 17 and 18: atan, atanh Inverse tangent and inv
Page 19 and 20: Correlation corrcoef Correlation co
Page 21 and 22: Convex Hull convhull Convex hull co
Page 23 and 24: etainc Incomplete beta function bet
Page 25 and 26: Tree Operations etree Elimination t
Page 27 and 28: permute Rearrange dimensions of mul
Page 29 and 30: int8 Convert to signed 8-bit intege
Page 31 and 32: Array Manipulation : Specify range
Page 33 and 34: itxor Bit-wise XOR Relational Opera
Page 35 and 36: evalc Evaluate MATLAB expression wi
Page 37 and 38: methodsview Display information on
Page 39 and 40: open Open files of various types us
Page 41 and 42: Microsoft WAVE Sound Functions wavp
Page 43 and 44: gtext Place text on 2-D graph using
Page 45 and 46: tsearch Search for enclosing Delaun
Page 47 and 48: 3-D Visualization 3-D Visualization
Page 49 and 50: • Selecting Region of Interest Co
Page 51 and 52: Creating Graphical User Interfaces
Page 53 and 54: Controlling Program Execution uires
Page 55 and 56: Alphabetical List of Functions 2
Page 57 and 58: axis . . . . . . . . . . . . . . .
Page 59: clear . . . . . . . . . . . . . . .
Page 63 and 64: expm . . . . . . . . . . . . . . .
Page 65 and 66: Arithmetic Operators + - * / \ ^ '
Page 73 and 74: See Also all, any, find, strcmp Rel
Page 75 and 76: Logical Operators & | ~ expression
Page 77 and 78: Special Characters [ ] ( ) {} = ' .
Page 79 and 80: 2Colon : Purpose Create vectors, ar
Page 81 and 82: 2abs Purpose Absolute value and com
Page 83 and 84: Algorithm acos and acosh use these
Page 85 and 86: Algorithm acot and acoth use these
Page 87 and 88: See Also csc, csch acsc, acsch 2-33
Page 89 and 90: actxcontrol Note There are two ways
Page 91 and 92: actxserver 2actxserver Purpose Crea
Page 93 and 94: fig=figure; set(fig,'DoubleBuffer',
Page 95 and 96: Verify that the files were added to
Page 97 and 98: [W,ierr] = airy(k,Z) also returns a
Page 99 and 100: 2all Purpose Test to determine if a
Page 101 and 102: 2allchild Purpose Find all children
Page 103 and 104: • 'rand' - set the AlphaData prop
Page 105 and 106: 2alphamap Purpose Specify the figur
Page 107 and 108: 2angle Purpose Phase angle Syntax P
Page 109 and 110: 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
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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
Page 527 and 528:
2eigs Purpose Find a few eigenvalue
Page 529 and 530:
eigs(A,K,sigma,opts) and eigs(A,B,k
Page 531 and 532:
[dum,ind] = sort(abs(d)); plot(dlm,
Page 533 and 534:
(lambda - 4.0), where lambda is an
Page 535 and 536:
2ellipj Purpose Jacobi elliptic fun
Page 537 and 538:
2ellipke Purpose Complete elliptic
Page 539 and 540:
2ellipsoid Purpose Generate ellipso
Page 541 and 542:
2elseif Purpose Conditionally execu
Page 543 and 544:
2end Purpose Terminate for, while,
Page 545 and 546:
2eomday Purpose End of month Syntax
Page 547 and 548:
2erf, erfc, erfcx, erfinv, erfcinv
Page 549 and 550:
2error Purpose Display error messag
Page 551 and 552:
errorbar(X,Y,E) 1.4 See Also LineSp
Page 553 and 554:
displays this dialog box on a UNIX
Page 555 and 556:
2etree Purpose Elimination tree Syn
Page 557 and 558:
2eval Purpose Execute a string cont
Page 559 and 560:
2evalc Purpose Evaluate MATLAB expr
Page 561 and 562:
Limitation evalin cannot be used re
Page 563 and 564:
If item is a Java class, then exist
Page 565 and 566:
2exit Purpose Terminate MATLAB (sam
Page 567 and 568:
2expint Purpose Exponential integra
Page 569 and 570:
expm Notice that the diagonal eleme
Page 571 and 572:
2ezcontour Purpose Easy to use cont
Page 573 and 574:
ezcontour See Also contour, ezconto
Page 575 and 576:
f( x, y) 31 ( - x) 2e x2 - ( y + 1)
Page 577 and 578:
2ezmesh Purpose Easy to use 3-D mes
Page 579 and 580:
2ezmeshc Purpose Easy to use combin
Page 581 and 582:
2ezplot Purpose Easy to use functio
Page 583 and 584:
2ezplot3 Purpose Easy to use 3-D pa
Page 585 and 586:
2ezpolar Purpose Easy to use polar
Page 587 and 588:
sqrt(x.^2 + y.^2); is written as: e
Page 589 and 590:
2ezsurfc Purpose Easy to use combin
Page 591 and 592:
See Also ezcontour, ezcontourf, ezm
Page 593 and 594:
Symbols ! 2-22 - 2-10 % 2-22 & 2-20
Page 595 and 596:
eta function (defined) 2-144 incomp
Page 597 and 598:
colamd 2-277 colmmd 2-279 Color Axe
Page 599 and 600:
dbclear 2-378 dbcont 2-380 dbdown 2
Page 601 and 602:
ellipj 2-481 ellipke 2-483 elliptic
Page 603 and 604:
help files, location for UNIX 2-457
Page 605 and 606:
mldivide (M-file function equivalen
Page 607 and 608:
sound files reading 2-76 writing 2-
Page 609:
ZGrid, Axes property 2-114 ZLim, Ax
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