Lec02

Advanced Electrical Control Lab. Department of Electrical Engineering National Chung-Hsing University Advanced Electrical Control Lab. Department of Electrical Engineering National Chung-Hsing University Advanced Electrical Control Lab. Department of Electrical EngineAdvanced Electrical Control Lab. Department of Electrical Engineering National Chungering National Chung--Hsing University Hsing University

MATLAB

Lecture 02

P2/27Department of Electrical Engineering National Chung Hsing UniverDepartment of Electrical Engineering National Chung Hsing University sity Advanced Electrical Control Lab.Advanced Electrical Control Lab.

MATLABScript file (M-file)

MATLAB


MATLAB

MATLAB


MATLAB

[ ] , 10[2 3 5 7][2,3,5,7]

; 1~9 [1 2 3;4 5 6;7 8 9]


MATLAB (1)

MATLAB

()

()

sin(5)acos(0.5)abs(-12.5)

^/*-+


MATLAB (2)

sumresansa1


//a=3, b=11,

V=[1 3 5 7], A=[1 0;

0 1]

sinabslength


syms

()

dsolve(f)diff(f)

solve(f)simple(p)simplify(p)

int(f)

collect(p)pretty(p)residue(p)roots(p)poly(A)

deconv(p1,p2)conv(p1,p2)


MATLAB

C ( ) , MATLAB

a=max(13,5) a=13


help(average/mean)

help average help mean

MATLABhelpDemoMATLAB


MATLABM-filefunctionM-file

function =(1,2,)();;

end

()


M-file

MATLABC

If else Switch case For / While


IF - ELSE

if 11;

elseif22;

else3;

end

elseifelse

||(OR)&&(AND)~====


12,34,56

41~6rand()

dice=1+round(5*rand()) % if dice==1

result='You Lose!!'elseif dice==2 || dice==3

result='Small!!'elseif dice==4 || dice==5

result='Big!!'elseif dice==6

result='You Win!!'else

result='You Cheat!!'end

ex01.m


SWITCH - CASE

Switchif-else

Cdefaultotherwisecase

break

switch ()

case 11();

case 22();

case 33();

otherwise();

end


12,34,56

ex01switchif-else

dice=1+round(5*rand()) % switch dice

case 1result='You Lose!!'

case {2,3}result='Small!!'

case {4,5}result='Big!!'

case 6result='You Win!!'

otherwiseresult='You Cheat!!'

end ex02.m


WHILE / FOR

forwhile

for =::();

end

while ();

end


result10

result(i) resulti

while6

for i=1:1:20% dice=1+round(5*rand());result(i)=dice;

endresult

dice=0;count=0;while dice~=6

dice=1+round(5*rand())count=count+1;

endcount

ex03.m

ex04.m


MATLAB

plot

t=0:0.1:10;a=5;y1=sin(a*t);plot(t,y1)grid onhold onbox ony2=cos(a*t);plot(t,y2,'--r')title('Title text');xlabel('Xlabel text');ylabel('Ylabel text');legend('legend text1','legend text2');axis([0 pi -1 1]); ex05.m


- plotplot(x,y,:ro,


- axis

axis([xmin xmax ymin ymax]);or

axis ();

offon

equalsquare

axis

subplotaxis


clear allclct=-pi:2*pi/100:pi;y=sin(t);subplot(2,2,1)plot(t,y)title (')axis([-pi pi -1 1]);subplot(2,2,2)plot(t,y)title (')axis ('square');subplot(2,2,3)plot(t,y)title (')axis ('equal');subplot(2,2,4)plot(t,y)title (')axis ('off');


(/)cot /cotd(/)sec / secd(/)csc /cscd

(/)atan / atand

(/)asin / asind(/)acos / acosd

(/)csc /cscd(/)sec / secd(/)cot /cotd(/)tan / tand(/)cos /cosd(/)sin / sind

acoshatanhacoth

acschasech

asinhcschsechcothtanhcoshsinh


abpow(a,b)2xpow2

sqrt10log10

2log2logeexp

isreal

conjcomplexrealimag

angle

mod(a,b) = rem(a,b)+b () mod(a,b)

a/brem(a,b)abs

>0:1, =0:0,


subplotfigure

comet

box ( on / off )

grid ( on / off )hold ( on / off )

axislegendYylabelXxlabel

titletitleplot

()text()gtext

polarbar

stairsbarh

filllineplot3(Y)semilogy(X)semilogx

loglog


[] MATLAB 7.0 ()

[] Matlab7.0

http://www.cs.nthu.edu.tw/~jang

MATLAB http://bime-matlab.blogspot.com/


1. MATLAB1~50

2. function [1~

] calprime.medge

[Hint]1

Lec02

Documents

matlab c

matlab sin5acos0

matlabscript file

file matlabc

average help

switch case