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

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ii Contents 2 Scientific Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Audio and Audio/Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38 Basic Plots and Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38 Annotating Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38 Specialized Plotting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39 Bit-Mapped Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41 Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41 Handle Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41 3-D Visualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43 Surface and Mesh Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43 View Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44 Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45 Transparency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46 Volume Visualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46 Creating Graphical User Interfaces . . . . . . . . . . . . . . . . . . . . 1-47 Predefined Dialog Boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47 Deploying User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48 Developing User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48 User Interface Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48 Finding and Identifying Objects . . . . . . . . . . . . . . . . . . . . . . . . 1-48 GUI Utility Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48 Controlling Program Execution . . . . . . . . . . . . . . . . . . . . . . . . . 1-49 Alphabetical List of Functions
Functions By Category 1
Page 1 and 2: MATLAB® MATLAB Function Reference
Page 3: 1 Functions By Category Development
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 and 60:
clear . . . . . . . . . . . . . . .
Page 61 and 62:
dbup . . . . . . . . . . . . . . .
Page 63 and 64:
expm . . . . . . . . . . . . . . .
Page 65 and 66:
Arithmetic Operators + - * / \ ^ '
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
See Also all, any, find, strcmp Rel
Page 75 and 76:
Logical Operators & | ~ expression
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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
Page 111 and 112:
2area Purpose Area fill of a two-di
Page 113 and 114:
2asec, asech Purpose Inverse secant
Page 115 and 116:
2asin, asinh Purpose Inverse sine a
Page 117 and 118:
2assignin Purpose Assign a value to
Page 119 and 120:
2atan, atanh Purpose Inverse tangen
Page 121 and 122:
2atan2 Purpose Four-quadrant invers
Page 123 and 124:
2audioplayer Purpose Create an audi
Page 125 and 126:
Property Description Type Type Name
Page 127 and 128:
Method Description audiorecorder is
Page 129 and 130:
audiorecorder Examples Example 1 Us
Page 131 and 132:
2auwrite Purpose Write NeXT/SUN (.a
Page 133 and 134:
Parameter Value Default You can als
Page 135 and 136:
2aviinfo Purpose Return information
Page 137 and 138:
2aviread Purpose Read an Audio Vide
Page 139 and 140:
While the basic purpose of an axes
Page 141 and 142:
In this example, the first plot occ
Page 143 and 144:
Property Name Property Description
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Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Axes Properties objects in the axes
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CameraView Angle [0 1 0] (positive
Page 155 and 156:
Color {none} | ColorSpec Axes Prope
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X-, Y-, Z-Limits following table de
Page 159 and 160:
Axes Properties FontName A name suc
Page 161 and 162:
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
Page 171 and 172:
2axis Purpose Axis scaling and appe
Page 173 and 174:
Examples The statements axis off tu
Page 175 and 176:
5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 axis(
Page 177 and 178:
2balance Purpose Improve accuracy o
Page 179 and 180:
Now the eigenvectors are well behav
Page 181 and 182:
ar, barh distinct elements and show
Page 183 and 184:
See Also bar3, ColorSpec, patch, st
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ar3, bar3h •'stacked' displays on
Page 187 and 188:
See Also bar, LineSpec, patch 1 0.5
Page 189 and 190:
2beep Purpose Produce a beep sound
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[H,ierr] = besselh(...) also return
Page 193 and 194:
esseli, besselk and the other is a
Page 195 and 196:
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
Page 203 and 204:
flag = relres = iter = 1 1 0 The va
Page 205 and 206:
4559 This time U2 is nonsingular an
Page 207 and 208:
time to precondition and converge t
Page 209 and 210:
Example Example 1. bicgstab bicgsta
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icgstab flag2 is 0 because bicgstab
Page 213 and 214:
2bin2dec Purpose Binary to decimal
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2bitcmp Purpose Complement bits Syn
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2bitmax Purpose Maximum floating-po
Page 219 and 220:
2bitset Purpose Set bit Syntax C =
Page 221 and 222:
2bitxor Purpose Bit-wise XOR Syntax
Page 223 and 224:
2blkdiag Purpose Construct a block
Page 225 and 226:
2break Purpose Terminate execution
Page 227 and 228:
2builtin Purpose Execute builtin fu
Page 229 and 230:
parameters Optional. A vector that
Page 231 and 232:
function dydx = twoode(x,y) dydx =
Page 233 and 234:
fprintf('The fourth eigenvalue is a
Page 235 and 236:
2bvpget Purpose Extract properties
Page 237 and 238:
solinit is a structure with the fol
Page 239 and 240:
Property Value Description Vectoriz
Page 241 and 242:
2calendar Purpose Calendar Syntax c
Page 243 and 244:
camdolly Remarks camdolly sets the
Page 245 and 246:
Examples This example creates a lig
Page 247 and 248:
See Also campos, camtarget camlooka
Page 249 and 250:
end camorbit Rotation in the camera
Page 251 and 252:
2campos Purpose Set or query the ca
Page 253 and 254:
2camproj Purpose Set or query the p
Page 255 and 256:
2camtarget Purpose Set or query the
Page 257 and 258:
2camup Purpose Set or query the cam
Page 259 and 260:
2camva Purpose Set or query the cam
Page 261 and 262:
2camzoom Purpose Zoom in and out on
Page 263 and 264:
2cart2pol Purpose Transform Cartesi
Page 265 and 266:
2case Purpose Case switch Descripti
Page 267 and 268:
2catch Purpose Begin catch block De
Page 269 and 270:
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 and 322:
To clear all compiled M- and MEX-fu
Page 323 and 324:
2clf Purpose Clear current figure w
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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3 2.5 2 1.5 1 0.5 0 −0.5 −1 −
Page 369 and 370:
2contour3 Purpose Three-dimensional
Page 371 and 372:
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 and 424:
Examples Convert a date string to a
Page 425 and 426:
dateform (number) dateform (string)
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
Page 475 and 476:
2delaunay3 Purpose 3-D Delaunay tes
Page 477 and 478:
delaunay3 [2] National Science and
Page 479 and 480:
3 9 1 5 2 9 1 6 2 3 9 4 2 3 9 1 7 9
Page 481 and 482:
2delete Purpose Delete files or gra
Page 483 and 484:
2delete (serial) Purpose Remove a s
Page 485 and 486:
2depfun Purpose List the dependent
Page 487 and 488:
depfun not examine the files on whi
Page 489 and 490:
2det Purpose Matrix determinant Syn
Page 491 and 492:
y = -0.0000 1.0000 -2.0000 1.0000 0
Page 493 and 494:
2diag Purpose Diagonal matrices and
Page 495 and 496:
2dialog Purpose Create and display
Page 497 and 498:
2diff Purpose Differences and appro
Page 499 and 500:
2dir Purpose Display directory list
Page 501 and 502:
2disp Purpose Display text or array
Page 503 and 504:
2display Purpose Overloaded method
Page 505 and 506:
2divergence Purpose Computes the di
Page 507 and 508:
2dlmread Purpose Read an ASCII deli
Page 509 and 510:
2dmperm Purpose Dulmage-Mendelsohn
Page 511 and 512:
2docopt Purpose Display location of
Page 513 and 514:
To open the notepad editor and retu
Page 515 and 516:
2double Purpose Convert to double-p
Page 517 and 518:
2drawnow Purpose Complete pending d
Page 519 and 520:
2dsearchn Purpose n-D nearest point
Page 521 and 522:
2edit Purpose Edit or create M-file
Page 523 and 524:
2eig Purpose Find eigenvalues and e
Page 525 and 526:
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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