Matlab Function Reference Guide II (pdf) - Computer Engineering ...

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How to Contact The MathWorks: www.mathworks.com Web comp.soft-sys.matlab Newsgroup support@mathworks.com Technical support suggest@mathworks.com Product enhancement suggestions bugs@mathworks.com Bug reports doc@mathworks.com Documentation error reports service@mathworks.com Order status, license renewals, passcodes info@mathworks.com Sales, pricing, and general information 508-647-7000 Phone 508-647-7001 Fax The MathWorks, Inc. Mail 3 Apple Hill Drive Natick, MA 01760-2098 For contact information about worldwide offices, see the MathWorks Web site. MATLAB Function Reference Volume 2: F - O © COPYRIGHT 1984 - 2002 by The MathWorks, Inc. The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. No part of this manual may be photocopied or reproduced in any form without prior written consent from The MathWorks, Inc. FEDERAL ACQUISITION: This provision applies to all acquisitions of the Program and Documentation by or for the federal government of the United States. By accepting delivery of the Program, the government hereby agrees that this software qualifies as "commercial" computer software within the meaning of FAR Part 12.212, DFARS Part 227.7202-1, DFARS Part 227.7202-3, DFARS Part 252.227-7013, and DFARS Part 252.227-7014. The terms and conditions of The MathWorks, Inc. Software License Agreement shall pertain to the government’s use and disclosure of the Program and Documentation, and shall supersede any conflicting contractual terms or conditions. If this license fails to meet the government’s minimum needs or is inconsistent in any respect with federal procurement law, the government agrees to return the Program and Documentation, unused, to MathWorks. MATLAB, Simulink, Stateflow, Handle Graphics, and Real-Time Workshop are registered trademarks, and TargetBox is a trademark of The MathWorks, Inc. Other product or brand names are trademarks or registered trademarks of their respective holders. Printing History: December 1996 First printing For MATLAB 5 June 1997 Online only Revised for 5.1 October 1997 Online only Revised for 5.2 January 1999 Online only Revised for Release 11 June 1999 Second printing For Release 11 June 2001 Online only Revised for 6.1 July 2002 Online only Revised for 6.5 (Release 13)
1 Functions – By Category Development Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Starting and Quitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Command Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Workspace, File, and Search Path . . . . . . . . . . . . . . . . . . . . . . . 1-3 Programming Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Performance Improvement Tools and Techniques . . . . . . . . . . 1-5 Mathematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Arrays and Matrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Linear Algebra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Elementary Math . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Data Analysis and Fourier Transforms . . . . . . . . . . . . . . . . . . 1-13 Polynomials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Interpolation and Computational Geometry . . . . . . . . . . . . . . 1-15 Coordinate System Conversion . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 Nonlinear Numerical Methods . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 Specialized Math . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Sparse Matrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Math Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Programming and Data Types . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 Operators and Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27 Programming in MATLAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 File I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34 Filename Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34 Opening, Loading, Saving Files . . . . . . . . . . . . . . . . . . . . . . . . 1-34 Low-Level File I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 Text Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 XML Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 Contents i
Page 1: MATLAB® MATLAB Function Reference
Page 5 and 6: Functions - By Category 1 The MATLA
Page 7 and 8: Getting Help Development Environmen
Page 9 and 10: Source Control checkin Check file i
Page 11 and 12: Arrays and Matrices • “Basic In
Page 13 and 14: meshgrid Generate X and Y matrices
Page 15 and 16: Factorization balance Diagonal scal
Page 17 and 18: Discrete Math (e.g., Prime Factors)
Page 19 and 20: coefficients roots Polynomial roots
Page 21 and 22: • “Partial Differential Equatio
Page 23 and 24: • “Reordering Algorithms” •
Page 25 and 26: Programming and Data Types Programm
Page 27 and 28: strncmpi Compare first n characters
Page 29 and 30: Determine Data Type is* Detect stat
Page 31 and 32: Operators and Operations • “Spe
Page 33 and 34: setxor Set exclusive or of two vect
Page 35 and 36: global Define global variables inme
Page 37 and 38: lasterr Return last error message g
Page 39 and 40: Low-Level File I/O fclose Close one
Page 41 and 42: Audio Video Interleaved (AVI) Funct
Page 43 and 44: title Titles for 2-D and 3-D plots
Page 45 and 46: tsearch Search for enclosing Delaun
Page 47 and 48: close Close specified window closer
Page 49 and 50: Color Operations brighten Brighten
Page 51 and 52: Transparency 3-D Visualization alph
Page 53 and 54:
Deploying User Interfaces guidata S
Page 55 and 56:
Functions - Alphabetical List 2
Page 57 and 58:
fitsread . . . . . . . . . . . . .
Page 59 and 60:
hdf . . . . . . . . . . . . . . . .
Page 61 and 62:
isequal . . . . . . . . . . . . . .
Page 63 and 64:
lookfor . . . . . . . . . . . . . .
Page 65 and 66:
open . . . . . . . . . . . . . . .
Page 67 and 68:
2factorial Purpose Factorial functi
Page 69 and 70:
2fclose Purpose Close one or more o
Page 71 and 72:
2feather Purpose Plot velocity vect
Page 73 and 74:
2feof Purpose Test for end-of-file
Page 75 and 76:
2feval Purpose Function evaluation
Page 77 and 78:
2fft Purpose Discrete Fourier trans
Page 79 and 80:
Graph the first 257 points (the oth
Page 81 and 82:
2fft2 Purpose Two-dimensional discr
Page 83 and 84:
2fftshift Purpose Shift zero-freque
Page 85 and 86:
2fgetl (serial) Purpose Read one li
Page 87 and 88:
2fgets Purpose Read line from file,
Page 89 and 90:
• The terminator specified by the
Page 91 and 92:
'FRAMEBITS' 'ALLBITS' . . See Also
Page 93 and 94:
“Figure Windows” for related fu
Page 95 and 96:
figure Example To create a figure w
Page 97 and 98:
Property Name Property Description
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Modifying Properties Figure Propert
Page 105 and 106:
Figure Properties close(figure_hand
Page 107 and 108:
Figure Properties Colormaps affect
Page 109 and 110:
Figure Properties The figure Curren
Page 111 and 112:
Figure Properties simultaneously di
Page 113 and 114:
Figure Properties etc., to black. l
Page 115 and 116:
Figure Properties vertically; lands
Page 117 and 118:
PaperUnits normalized | {inches} |
Page 119 and 120:
Using the OpenGL Renderer Figure Pr
Page 121 and 122:
Figure Properties • Patch objects
Page 123 and 124:
Figure Properties The physical acti
Page 125 and 126:
Figure Properties • Characters un
Page 127 and 128:
Figure Properties Modal figures do
Page 129 and 130:
File Format Extension File Content
Page 131 and 132:
2fileattrib Purpose Set or get attr
Page 133 and 134:
Examples Get Attributes of File To
Page 135 and 136:
fileattrib The operation was succes
Page 137 and 138:
filebrowser 2filebrowser Purpose Di
Page 139 and 140:
2filesep Purpose Return the directo
Page 141 and 142:
If C is a row vector, fill generate
Page 143 and 144:
2fill3 Purpose Filled three-dimensi
Page 145 and 146:
See Also axis, caxis, colormap, Col
Page 147 and 148:
windowSize = 5; filter(ones(1,windo
Page 149 and 150:
2filter2 Purpose Two-dimensional di
Page 151 and 152:
ans = 1 And on a matrix M = magic(3
Page 153 and 154:
2findfigs Purpose Find visible off-
Page 155 and 156:
See Also copyobj, gcf, gca, gcbo, g
Page 157 and 158:
2finish Purpose MATLAB termination
Page 159 and 160:
fitsinfo The tables that follow sho
Page 161 and 162:
Fields of the BinaryTable Structure
Page 163 and 164:
Fields of the Unknown Structure Arr
Page 165 and 166:
key = S.AsciiTable.Keywords ans = '
Page 167 and 168:
Example Read FITS file, tst0012.fit
Page 169 and 170:
2flipdim Purpose Flip array along a
Page 171 and 172:
2flipud Purpose Flip matrices up-do
Page 173 and 174:
2floor Purpose Round towards minus
Page 175 and 176:
2flow Purpose A simple function of
Page 177 and 178:
options A vector of control paramet
Page 179 and 180:
2fminbnd Purpose Minimize a functio
Page 181 and 182:
f = inline('x.^3-2*x-5'); Then invo
Page 183 and 184:
options A vector of control paramet
Page 185 and 186:
2fminsearch Purpose Minimize a func
Page 187 and 188:
function f = banana(x) f = 100*(x(2
Page 189 and 190:
2fopen Purpose Open a file or obtai
Page 191 and 192:
'ieee-be.l64' or 's' IEEE floating
Page 193 and 194:
See Also Functions fopen(s) fprintf
Page 195 and 196:
has the same effect as for k = 1:n,
Page 197 and 198:
Value for type Result Example hex H
Page 199 and 200:
2fplot Purpose Plot a function betw
Page 201 and 202:
1 0.8 0.6 0.4 0.2 0 −0.2 −0.4
Page 203 and 204:
2fprintf Purpose Write formatted da
Page 205 and 206:
Specifier Description %f Fixed-poin
Page 207 and 208:
Examples The statements Note fprint
Page 209 and 210:
2fprintf (serial) Purpose Write tex
Page 211 and 212:
fprintf (serial) Rules for Writing
Page 213 and 214:
2frameedit Purpose Create and edit
Page 215 and 216:
frameedit Printing Simulink Block D
Page 217 and 218:
MATLAB C or Fortran Interpretation
Page 219 and 220:
Examples For example, is read. If p
Page 221 and 222:
2fread (serial) Purpose Read binary
Page 223 and 224:
Supported Precisions The supported
Page 225 and 226:
2freeserial Purpose Release hold on
Page 227 and 228:
2frewind Purpose Move the file posi
Page 229 and 230:
matched and involve the character %
Page 231 and 232:
2fscanf (serial) Purpose Read data
Page 233 and 234:
fscanf (serial) Use the fprintf fun
Page 235 and 236:
'eof' 1: End of file. status A retu
Page 237 and 238:
2full Purpose Convert sparse matrix
Page 239 and 240:
2func2str Purpose Constructs a func
Page 241 and 242:
function Subfunctions are not visib
Page 243 and 244:
fhandle = @humps; function_handle (
Page 245 and 246:
2funm Purpose Evaluate general matr
Page 247 and 248:
2fwrite Purpose Write binary data t
Page 249 and 250:
fwrite (serial) The ValuesSent prop
Page 251 and 252:
See Also Functions fopen, fprintf f
Page 253 and 254:
[x,fval,exitflag] = fzero(...) retu
Page 255 and 256:
Furthermore, the fzero command defi
Page 257 and 258:
Test Matrices (Continued) toeppd tr
Page 259 and 260:
Argument sym determines whether the
Page 261 and 262:
fiedler—Symmetric matrix A = gall
Page 263 and 264:
If x is complex, then sign(x) = x./
Page 265 and 266:
lauchli—Rectangular matrix A = ga
Page 267 and 268:
orthog—Orthogonal and nearly orth
Page 269 and 270:
gallery k = 0 diag(x) is initially
Page 271 and 272:
1 One large singular value. 4 Arith
Page 273 and 274:
osser—Classic symmetric eigenvalu
Page 275 and 276:
gallery and, for large abs(alpha),
Page 277 and 278:
2gamma, gammainc, gammaln Purpose G
Page 279 and 280:
2gca Purpose Get current axes handl
Page 281 and 282:
2gcbo Purpose Return the handle of
Page 283 and 284:
See Also lcm So that E = 1 0 -2 1 I
Page 285 and 286:
2gco Purpose Return handle of curre
Page 287 and 288:
genpath You can also use genpath in
Page 289 and 290:
2get Purpose Get object properties
Page 291 and 292:
“Finding and Identifying Graphics
Page 293 and 294:
DisplayTooltips: 1 DisplayKeysInToo
Page 295 and 296:
get (serial) Example This example i
Page 297 and 298:
See Also timer, set get(t, {'StartD
Page 299 and 300:
2getenv Purpose Get environment var
Page 301 and 302:
name = 'alice' 'gertrude' getfield
Page 303 and 304:
getframe MATLAB and that can take a
Page 305 and 306:
2ginput Purpose Input data using th
Page 307 and 308:
See Also clear, isglobal, who % TIC
Page 309 and 310:
or [], then the maximum number of t
Page 311 and 312:
flag1 is 2 because the upper triang
Page 313 and 314:
2gplot Purpose Plot set of nodes us
Page 315 and 316:
2gradient Purpose Numerical gradien
Page 317 and 318:
See Also del2, diff gradient [PX,PY
Page 319 and 320:
2grid Purpose Grid lines for two- a
Page 321 and 322:
griddata Remarks XI and YI can be m
Page 323 and 324:
2griddata3 Purpose Data gridding an
Page 325 and 326:
griddatan [2] National Science and
Page 327 and 328:
Examples Example 1. The matrices ha
Page 329 and 330:
A = B = The statement 1 4 7 10 13 2
Page 331 and 332:
2gtext Purpose Mouse placement of t
Page 333 and 334:
% save the structure guidata(figure
Page 335 and 336:
2guihandles Purpose Create a struct
Page 337 and 338:
2hankel Purpose Hankel matrix Synta
Page 339 and 340:
hdfvh Vdata VH functions hdfvs Vdat
Page 341 and 342:
hdfinfo The set of fields in the re
Page 343 and 344:
Fields of the Raster8 and Raster24
Page 345 and 346:
Fields of the Grid Structure Projec
Page 347 and 348:
2hdfread Purpose Extract data from
Page 349 and 350:
Subsetting Parameters for HDF Vdata
Page 351 and 352:
Parameter Description 'Tile' Vector
Page 353 and 354:
Parameter Description Required Para
Page 355 and 356:
hdfread Examples Importing a Data S
Page 357 and 358:
hdfread Importing Fields from a Vda
Page 359 and 360:
2help Purpose Display help for MATL
Page 361 and 362:
Examples Typing you should create C
Page 363 and 364:
Tabs in Help Navigator pane provide
Page 365 and 366:
2helpdlg Purpose Create a help dial
Page 367 and 368:
2helpwin Purpose Display M-file hel
Page 369 and 370:
See Also eig, qz, schur Matrix A Ro
Page 371 and 372:
2hex2num Purpose Hexadecimal to dou
Page 373 and 374:
2hgsave Purpose Saves a Handle Grap
Page 375 and 376:
2hilb Purpose Hilbert matrix Syntax
Page 377 and 378:
for more information. By default, t
Page 379 and 380:
2histc Purpose Histogram count Synt
Page 381 and 382:
2home Purpose Move the cursor to th
Page 383 and 384:
See Also vertcat, cat 23 5 7 14 16
Page 385 and 386:
2i Purpose Imaginary unit Syntax i
Page 387 and 388:
Remarks Nonscalar Expressions If th
Page 389 and 390:
2ifft Purpose Inverse discrete Four
Page 391 and 392:
2ifftn Purpose Multidimensional inv
Page 393 and 394:
2im2frame Purpose Convert indexed i
Page 395 and 396:
frame.show See Also “Bit-Mapped I
Page 397 and 398:
2image Purpose Display image object
Page 399 and 400:
image 8-bit and 16-bit image data d
Page 401 and 402:
Object Hierarchy Root Figure Axes U
Page 403 and 404:
Page 405 and 406:
Image Properties last alpha value i
Page 407 and 408:
produces: 0.5 1 1.5 2 2.5 3 3.5 4 4
Page 409 and 410:
Image Properties slowest. The other
Page 411 and 412:
Selected on | {off} Image Propertie
Page 413 and 414:
2imagesc Purpose Scale data and dis
Page 415 and 416:
See Also image “Bit-Mapped Images
Page 417 and 418:
Information Returned imfinfo If fil
Page 419 and 420:
“Bit-Mapped Images” for related
Page 421 and 422:
imformats Note The values for the i
Page 423 and 424:
import Remarks The only reason for
Page 425 and 426:
2imread Purpose Read image from gra
Page 427 and 428:
imread appears in the file. For exa
Page 429 and 430:
e an integer in the range [0,1]. If
Page 431 and 432:
imread image files, the class of th
Page 433 and 434:
2imwrite Purpose Write image to gra
Page 435 and 436:
Format Full Name Variants 'tif' or
Page 437 and 438:
TIFF-Specific Parameters This table
Page 439 and 440:
Parameter Values Default 'Backgroun
Page 441 and 442:
imwrite Example This example append
Page 443 and 444:
2ind2sub Purpose Subscripts from li
Page 445 and 446:
K = 1 1 2 2 See Also find, size, su
Page 447 and 448:
2inferiorto Purpose Inferior class
Page 449 and 450:
2inline Purpose Construct an inline
Page 451 and 452:
g = inline('sin(alpha*x)','x','alph
Page 453 and 454:
2inpolygon Purpose Detect points in
Page 455 and 456:
2inputdlg Purpose Create input dial
Page 457 and 458:
2inputname Purpose Input argument n
Page 459 and 460:
Check this field in the MATLAB comm
Page 461 and 462:
2instrfind Purpose Return serial po
Page 463 and 464:
2int2str Purpose Integer to string
Page 465 and 466:
See Also double, single, uint8, uin
Page 467 and 468:
The interp1 command interpolates be
Page 469 and 470:
300 250 200 150 100 50 1900 1910 19
Page 471 and 472:
2interp2 Purpose Two-dimensional da
Page 473 and 474:
20 15 10 5 0 −5 3 2 1 Example 2.
Page 475 and 476:
vi = interp3(x,y,z,v,xi,yi,zi); % v
Page 477 and 478:
2interpn Purpose Multidimensional d
Page 479 and 480:
2interpstreamspeed Purpose Interpol
Page 481 and 482:
interpstreamspeed This example plot
Page 483 and 484:
2intersect Purpose Set intersection
Page 485 and 486:
while the statements tic, z = A\b,
Page 487 and 488:
2invhilb Purpose Inverse of the Hil
Page 489 and 490:
invoke(h) See Also methods, ismetho
Page 491 and 492:
2is* Purpose Detect state Descripti
Page 493 and 494:
2isa Purpose Detect an object of a
Page 495 and 496:
2isappdata Purpose True if applicat
Page 497 and 498:
2iscellstr Purpose Determine if ite
Page 499 and 500:
2isempty Purpose Test if array is e
Page 501 and 502:
f2: 50 B.f2 = 50; B.f1 = 25 B = f2:
Page 503 and 504:
2isevent (COM) Purpose Determine if
Page 505 and 506:
2isfinite Purpose Detect finite ele
Page 507 and 508:
2ishandle Purpose Determines if val
Page 509 and 510:
2isinf Purpose Detect infinite elem
Page 511 and 512:
2iskeyword Purpose Determine if ite
Page 513 and 514:
2isletter Purpose Detect array elem
Page 515 and 516:
2ismember Purpose Detect members of
Page 517 and 518:
2ismethod (COM) Purpose Determine i
Page 519 and 520:
2isnumeric Purpose Determine if ite
Page 521 and 522:
2isocaps Purpose Compute isosurface
Page 523 and 524:
2isocolors Purpose Calculates isosu
Page 525 and 526:
isocolors Modified Truecolor Data T
Page 527 and 528:
2isonormals Purpose Compute normals
Page 529 and 530:
2isosurface Purpose Extract isosurf
Page 531 and 532:
See Also isonormals, shrinkfaces, s
Page 533 and 534:
2isprime Purpose Detect prime eleme
Page 535 and 536:
2isreal Purpose Determine if all ar
Page 537 and 538:
2isruntime Purpose Determine if MAT
Page 539 and 540:
B = sortrows(A) B = 4 6 13 20 22 10
Page 541 and 542:
2issparse Purpose Test if matrix is
Page 543 and 544:
2isstruct Purpose Determine if item
Page 545 and 546:
2isunix Purpose Determine if UNIX v
Page 547 and 548:
2isvalid (timer) Purpose Determine
Page 549 and 550:
2j Purpose Imaginary unit Syntax j
Page 551 and 552:
2javachk Purpose Generate an error
Page 553 and 554:
2javaMethod Purpose Invokes a Java
Page 555 and 556:
2javaObject Purpose Constructs a Ja
Page 557 and 558:
2keyboard Purpose Invoke the keyboa
Page 559 and 560:
0 5 10 15 20 25 0 5 10 15 nz = 105
Page 561 and 562:
lasterr errmsg = lasterr; if(strfin
Page 563 and 564:
catch do_cleanup rethrow(lasterror)
Page 565 and 566:
Divide by zero msgid = MATLAB:divid
Page 567 and 568:
2legend Purpose Display a legend on
Page 569 and 570:
legend • object_h - handles of th
Page 571 and 572:
2legendre Purpose Associated Legend
Page 573 and 574:
and P(:,1,2,3) ans = -0.2475 -1.122
Page 575 and 576:
2length (serial) Purpose Length of
Page 577 and 578:
license license('test',feature,togg
Page 579 and 580:
Object Hierarchy Root Figure Axes U
Page 581 and 582:
Page 583 and 584:
Light Properties CreateFcn string o
Page 585 and 586:
Light Properties z coordinates. The
Page 587 and 588:
2lightangle Purpose Create or posit
Page 589 and 590:
2lin2mu Purpose Convert linear audi
Page 591 and 592:
line('XData',x,'YData',y,'ZData',z,
Page 593 and 594:
line(rand(2,4),rand(2,4),rand(1,4))
Page 595 and 596:
Page 597 and 598:
Modifying Properties Line Property
Page 599 and 600:
EraseMode {normal} | none | xor | b
Page 601 and 602:
Interruptible {on} | off Line Prope
Page 603 and 604:
MarkerFaceColor ColorSpec | {none}
Page 605 and 606:
2LineSpec Purpose Line specificatio
Page 607 and 608:
Related Properties Color Specifiers
Page 609 and 610:
hold off 1 0.8 0.6 0.4 0.2 0 −0.2
Page 611 and 612:
2linspace Purpose Generate linearly
Page 613 and 614:
listdlg Example This example displa
Page 615 and 616:
digits in filename with an X and re
Page 617 and 618:
2load (serial) Purpose Load serial
Page 619 and 620:
2loadobj Purpose User-defined exten
Page 621 and 622:
2log Purpose Natural logarithm Synt
Page 623 and 624:
2log2 Purpose Base 2 logarithm and
Page 625 and 626:
2loglog Purpose Log-log scale plot
Page 627 and 628:
2logm Purpose Matrix logarithm Synt
Page 629 and 630:
2logspace Purpose Generate logarith
Page 631 and 632:
2lower Purpose Convert string to lo
Page 633 and 634:
2lscov Purpose Least squares soluti
Page 635 and 636:
[x,resnorm,residual,exitflag] = lsq
Page 637 and 638:
2lsqr Purpose LSQR implementation o
Page 639 and 640:
[x,flag,relres,iter,resvec,lsvec] =
Page 641 and 642:
2lu Purpose LU matrix factorization
Page 643 and 644:
P Row permutation matrix satisfying
Page 645 and 646:
The solution is actually computed b
Page 647 and 648:
2luinc Purpose Incomplete LU matrix
Page 649 and 650:
thresh is the pivot threshold betwe
Page 651 and 652:
0 100 200 300 400 0 100 200 300 400
Page 653 and 654:
Algorithm luinc(X,'0') is based on
Page 655 and 656:
The value of the characteristic sum
Page 657 and 658:
2mat2cell Purpose Divide matrix int
Page 659 and 660:
See Also cell2mat, num2cell C{2,1}
Page 661 and 662:
2material Purpose Controls the refl
Page 663 and 664:
2matlab Purpose Start MATLAB (UNIX
Page 665 and 666:
Variable Definition and Standard As
Page 667 and 668:
Variable Definition and Standard As
Page 669 and 670:
AUTOMOUNT_MAP is used to modify the
Page 671 and 672:
See Also mex Option Function (Conti
Page 673 and 674:
2matlabroot Purpose Return root dir
Page 675 and 676:
2mean Purpose Average or mean value
Page 677 and 678:
2memory Purpose Help for memory lim
Page 679 and 680:
2mesh, meshc, meshz Purpose Mesh pl
Page 681 and 682:
meshz(X,Y,Z) 10 5 0 −5 −10 4 2
Page 683 and 684:
2meshgrid Purpose Generate X and Y
Page 685 and 686:
2methods Purpose Display method nam
Page 687 and 688:
2methodsview Purpose Displays infor
Page 689 and 690:
2mex Purpose Compile MEX-function f
Page 691 and 692:
2mexext Purpose Return the MEX-file
Page 693 and 694:
2min Purpose Minimum elements of an
Page 695 and 696:
minres minres(A,b,tol,maxit,M1,M2,x
Page 697 and 698:
See Also bicg, bicgstab, cgs, choli
Page 699 and 700:
2mkdir Purpose Make new directory G
Page 701 and 702:
2mkpp Purpose Make a piecewise poly
Page 703 and 704:
See Also ppval, spline, unmkpp mkpp
Page 705 and 706:
2mod Purpose Modulus after division
Page 707 and 708:
2move (COM) Purpose Move and/or res
Page 709 and 710:
2movefile Purpose Move file or dire
Page 711 and 712:
movefile Return Status When Moving
Page 713 and 714:
movegui(h) moves the figure identif
Page 715 and 716:
Z = peaks; surf(Z); axis tight set(
Page 717 and 718:
Parameter Value Default 'fps' A sca
Page 719 and 720:
2msgbox Purpose Display message box
Page 721 and 722:
2mu2lin Purpose Convert mu-law audi
Page 723 and 724:
Parameters This table describes the
Page 725 and 726:
multibandread method A text string
Page 727 and 728:
Interleave Methods multibandwrite m
Page 729 and 730:
multibandwrite(bandData,'data.img',
Page 731 and 732:
2namelengthmax Purpose Return maxim
Page 733 and 734:
2nargchk Purpose Check number of in
Page 735 and 736:
end y0 = y; See Also inputname, var
Page 737 and 738:
2nchoosek Purpose Binomial coeffici
Page 739 and 740:
ndgrid Remarks The ndgrid function
Page 741 and 742:
2newplot Purpose Determine where to
Page 743 and 744:
2nextpow2 Purpose Next power of two
Page 745 and 746:
0.0747 0.8405 [A\b nnls(A,b)] = -2.
Page 747 and 748:
2noanimate Purpose Change EraseMode
Page 749 and 750:
2norm Purpose Vector and matrix nor
Page 751 and 752:
2normest Purpose 2-norm estimate Sy
Page 753 and 754:
2now Purpose Current date and time
Page 755 and 756:
ans = 1.0000 -0.0000 -0.0000 1.0000
Page 757 and 758:
2num2str Purpose Number to string c
Page 759 and 760:
16 5 9 4 2 11 7 14 3 10 6 15 13 8 1
Page 761 and 762:
ode45, ode23, ode113, ode15s, ode23
Page 763 and 764:
Page 765 and 766:
Page 767 and 768:
Page 769 and 770:
Page 771 and 772:
odefile 2odefile Purpose Define a d
Page 773 and 774:
options = < Insert options = odeset
Page 775 and 776:
3 2 1 0 −1 −2 −3 0 2 4 6 8 10
Page 777 and 778:
2odeget Purpose Extract properties
Page 779 and 780:
• Solver output • Jacobian matr
Page 781 and 782:
Jacobian Matrix Properties (for ode
Page 783 and 784:
Step Size Properties Property Value
Page 785 and 786:
2open Purpose Open files based on e
Page 787 and 788:
Example 4 - Opening a MAT File This
Page 789 and 790:
figure_handle = openfig(...) return
Page 791 and 792:
openvar 2openvar Purpose Open works
Page 793 and 794:
2optimset Purpose Create or edit op
Page 795 and 796:
Property Value Description DiffMinC
Page 797 and 798:
optimset This statement makes a cop
Page 799 and 800:
c: 3 a: 1 snew = orderfields(s) sne
Page 801 and 802:
orient the orient portrait command
Page 803 and 804:
2otherwise Purpose Default part of
Page 805 and 806:
Numerics 1-norm 2-695 2-norm (estim
Page 807 and 808:
covariance least squares solution a
Page 809 and 810:
fftshift 2-29 FFTW 2-25 fgetl 2-30
Page 811 and 812:
fseek 2-180 ftell 2-182 full 2-183
Page 813 and 814:
converting MATLAB image to Java Ima
Page 815 and 816:
objects 2-456, 2-478 Java Image cla
Page 817 and 818:
flipping up-down 2-117 Hadamard 2-2
Page 819 and 820:
ode23 2-707 ode23s 2-707 ode23t 2-7
Page 821 and 822:
zbuffer 2-64 Renderer, Figure prope
Page 823 and 824:
Line property 2-550 uint8 2-410 unc
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