practica 2-control i
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UNIVERSIDAD CATÓLICA DE SANTA MARIA
FACULTAD DE CIENCIAS FÍSICAS Y FORMALES
PROGRAMA PROFESIONAL DE INGENIERÍA ELECTRÓNICA
SEGUNDA PRÁCTICA
“APLICACIONES ESPECIALES DE MATRICES Y
OPERACIONES ESCALARES ”
CONTROL AUTOMATICO I
ANGIE ISABEL TALAVERA HERRERA
AREQUIPA – PERU2014
APLICACIONES ESPECIALES DE MATRICES Y
OPERACIONES ESCALARES
1.-
>> A=[3 6 4;5 1 0;7 2 3]
A =
3 6 4
5 1 0
7 2 3
>> B=[4 0 1;5 5 6;7 8 6]
B =
4 0 1
5 5 6
7 8 6
>> Pi=A.*B
Pi =
12 0 4
25 5 0
49 16 18
2.-
>> P=A*B
P =
70 62 63
25 5 11
59 34 37
3.-
>> A=[2 -2 7 4;9 -2 3 4;5 1 -1 2;12 3 5 -2];
>> B=[5 0 -3 -1];
>> B/A
ans =
-0.8848 0.8337 -0.3238 0.0738
4.-
A)
>> U=[3 -1 6];
>> V=[-1 -2 5];
>> pi_=sum(U.*V)
pi_ =
29
>> d=sqrt(sum((U-V).^2))
d =
4.2426
B)
>> U=[1 3 0];
>> V=[-3 11 2];
>> pi_=sum(U.*V)
pi_ =
30
>> d=sqrt(sum((U-V).^2))
d =
9.1652
5.-
>> a=[1 -2 6 12 0.3 0.8];
>> b=[1 5 21 8 -5 3^1/2];
>> X=-b./a
X =
Columns 1 through 4
-1.0000 2.5000 -3.5000 -0.6667
Columns 5 through 6
16.6667 -1.8750
6.-
>> help mod
mod Modulus after division.
mod(x,y) is x - n.*y where n = floor(x./y) if y ~= 0. If y is not an
integer and the quotient x./y is within roundoff error of an integer,
then n is that integer. The inputs x and y must be real arrays of the
same size, or real scalars.
The statement "x and y are congruent mod m" means mod(x,m) == mod(y,m).
By convention:
mod(x,0) is x.
mod(x,x) is 0.
mod(x,y), for x~=y and y~=0, has the same sign as y.
Note: REM(x,y), for x~=y and y~=0, has the same sign as x.
mod(x,y) and REM(x,y) are equal if x and y have the same sign, but
differ by y if x and y have different signs.
See also rem.
Overloaded methods:
codistributed/mod
gpuArray/mod
sym/mod
Reference page in Help browser
doc mod
>> x=[1 6 8 23 46 89];
>> mod(x,4)
ans =
1 2 0 3 2 1
7.-
>> x=-1+2*j;
>> y=-25+2*j;
>> z=2*j;
>> x+y
ans =
-26.0000 + 4.0000i
>> x-z
ans =
-1
>> (x+y)*z
ans =
-8.0000 -52.0000i
>> abs(x)
ans =
2.2361
>> 1/y
ans =
-0.0397 - 0.0032i
>> z^2
ans =
-4
>> log10(x)
ans =
0.3495 + 0.8835i
>> exp(y)
ans =
-5.7794e-12 + 1.2628e-11i
>> abs(x/y)
ans =
0.0892
>> log(x)
ans =
0.8047 + 2.0344i
8.-
>> a=[1 3 -3];
>> b=[3^1/2 3 5];
>> m=sqrt(a)
m =
Columns 1 through 2
1.0000 + 0.0000i 1.7321 + 0.0000i
Column 3
0.0000 + 1.7321i
>> f=atan(1./b)
f =
0.5880 0.3218 0.1974
>> [x,y]=pol2cart(m,f)
x =
0.3177 -0.0517 0.5753
y =
Columns 1 through 2
0.4948 + 0.0000i 0.3176 + 0.0000i
Column 3
0.0000 + 0.5404i
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