3. Листинг программ и результат
3.1 Программа №1
x=-1.75*10^ (-3)
x = -0.0018
y=3.1*pi
y = 9.7389
t=(sin(y)+sin(2*y)+sin(3*y))^4/(1+((sin(y)+sin(2*y)+sin(3*y))/exp(x)))+(sqrt(1+((sin(y)+sin(2*y)+sin(3*y)/exp(x)))))
t = 0.8530
3.1 Программа №2
>> A =[1.0 -3.9 -2.3 -3.3 -1.7 2.2 -0.6 1.8]
>> B =[2.7 -2.7 -2.2 4.4 0.4 -6.0 -3.4 -5.2]
>> sum=a+b
sum = 3.7000 -6.6000 -4.5000 1.1000 -1.3000 -3.8000 -4.0000 -3.4000
>> raz=a-b
raz = -1.7000 -1.2000 -0.1000 -7.7000 -2.1000 8.2000 2.8000 7.0000
>> pro=dot(a,b)
pro = -17.4300
C=[a,b]
c =
Columns 1 through 8
1.0000 -3.9000 -2.3000 -3.3000 -1.7000 2.2000 -0.6000 1.8000
Columns 9 through 16
2.7000 -2.7000 -2.2000 4.4000 0.4000 -6.0000 -3.4000 -5.2000
m=max(c)
m =
4.4000
m=min(c)
m =
-6
m=max(c)
m =
4.4000
>> m=min(c)
m =
-6
>> [m,k]=max(c)
m =
4.4000
k =
12
>> [m,k]=min(c)
m =
-6
k =
14
c(1,12)=-6
c =
Columns 1 through 8
1.0000 -3.9000 -2.3000 -3.3000 -1.7000 2.2000 -0.6000 1.8000
Columns 9 through 16
2.7000 -2.7000 -2.2000 -6.0000 0.4000 -6.0000 -3.4000 -5.2000
c(1,14)=4.4
c =
Columns 1 through 8
1.0000 -3.9000 -2.3000 -3.3000 -1.7000 2.2000 -0.6000 1.8000
Columns 9 through 16
2.7000 -2.7000 -2.2000 -6.0000 0.4000 4.4000 -3.4000 -5.2000
a1=sort(c)
a1 =
Columns 1 through 8
-6.0000 -3.9000 -2.3000 -3.3000 -1.7000 0 -0.6000 0
Columns 9 through 16
0 -2.7000 -2.2000 -6.0000 0 0 -3.4000 -5.2000
>>
ind=16:-1:1
a1=sort(C)
a1 =
Columns 1 through 8
-6.0000 -5.2000 -3.9000 -3.4000 -3.3000 -2.7000 -2.3000 -2.2000
Columns 9 through 16
-1.7000 -0.6000 0.4000 1.0000 1.8000 2.2000 2.7000 4.4000
>> a1(ind)
ans =
Columns 1 through 8
4.4000 2.7000 2.2000 1.8000 1.0000 0.4000 -0.6000 -1.7000
Columns 9 through 16
-2.2000 -2.3000 -2.7000 -3.3000 -3.4000 -3.9000 -5.2000 -6.0000
u=[a(1) a(3) a(4)]
u =
1.0000 -2.3000 -3.3000
u=[a(1) a(3) a(4)]'
u =
1.0000
-2.3000
-3.3000
v=[b(2) b(3) b(4)]
v =
-2.7000 -2.2000 4.4000
l=cross(u,v)
l =
-17.3800 4.5100 -8.4100
=cross(u,v)
l =
-17.3800 4.5100 -8.4100
>> l=cross(v,u)
l =
17.3800 -4.5100 8.4100
3.3 Программа №3
a=[-9.8 4.4 1.3; -5.7 0.1 0.8; 2.4 4.4 8.6]
a =
-9.8000 4.4000 1.3000
-5.7000 0.1000 0.8000
2.4000 4.4000 8.6000
>> b=[1 0 2; 3 0 -1; 5 2 2; 8 9 0]
b =
1 0 2
3 0 -1
5 2 2
8 9 0
c=[0.1 0.2 -1.3 0.7; -0.2 0.3 2.2 0.8; 1.9 2.3 6.5 4.9]
c =
0.1000 0.2000 -1.3000 0.7000
-0.2000 0.3000 2.2000 0.8000
1.9000 2.3000 6.5000 4.9000
p=b*a*c-4*c'*b'
p =
16.4100 51.9100 140.1900 101.7100
-33.0700 -7.7300 5.3500 -55.4500
-10.4900 97.9700 261.3300 72.2500
-28.7500 36.5700 302.8300 -26.8700
w(1:7,1:7)=0;
w(1:1)=-1;
w(7,7)=1
w =
-1 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 1
v=[2 3 4 5 6 7 8]
v =
2 3 4 5 6 7 8
r=rot90(w)
r =
0 0 0 0 0 0 8
0 0 0 0 0 7 0
0 0 0 0 6 0 0
0 0 0 5 0 0 0
0 0 4 0 0 0 0
0 3 0 0 0 0 0
2 0 0 0 0 0 0
r1=rot90(r)
r1 =
8 0 0 0 0 0 0
0 7 0 0 0 0 0
0 0 6 0 0 0 0
0 0 0 5 0 0 0
0 0 0 0 4 0 0
0 0 0 0 0 3 0
0 0 0 0 0 0 2
r2=rot90(r1)
r2 =
0 0 0 0 0 0 2
0 0 0 0 0 3 0
0 0 0 0 4 0 0
0 0 0 5 0 0 0
0 0 6 0 0 0 0
0 7 0 0 0 0 0
8 0 0 0 0 0 0
r2(1:1)=-1;
r2(7,7)=1
r2 =
-1 0 0 0 0 0 2
0 0 0 0 0 3 0
0 0 0 0 4 0 0
0 0 0 5 0 0 0
0 0 6 0 0 0 0
0 7 0 0 0 0 0
8 0 0 0 0 0 1