MATLAB i j 
. , (, , FORTRAN).
>> clear i, j
>> x=1+i
x=
1.0000 + 1.0000i
>> y=3-4i
y=
3.0000 - 4.0000i
complex
>> x=complex(1,1)
x=
1.0000 + 1.0000i
>> y= complex (3,-4)
y=
3.0000 - 4.0000i
>> x*y
ans=
7.0000 - 1.0000i
>> z=sqrt(x)
z=
1.0967 + 0.4551i
>> a=y^3
a=
-1.1700e+02 - 4.4000e+01i
>> b=abs(x)
b=
1.4142
(p =Re y) (q =Im y) y real imag
>> p=real(y)
p=
>> q=imag(y)
q=
-4
, y
>> conj(y)
ans=
3.0000 + 4.0000i
,
>> w=3+4i
w=
3.0000 - 4.0000i
cos y
>> cos(y)
ans=
-27.0349+3.8512i
1. ( )
>> u1=[1 1 4]
u1=
1 1 4
>> whos u1
Name Size Bytes Class Attributes
u1 1x3 24 double
- , .
2. - ( )
>> v=[3; 1; -2;]
v=
-2
>> whos v
Name Size Bytes Class Attributes
v 3x1 24 double
, .
3.
>> h=v
h=
3 1 -2
>> whos v
Name Size Bytes Class Attributes
h 1x3 24 double
4.
>> r=2: 0.2: 3
r=
2.0000 2.2000 2.4000 2.6000 2.8000 3.0000
>> whos r
Name Size Bytes Class Attributes
r 1x6 48 double
, , , : : : .
5.
>> a=[1 2 4];
>> b=[3 2 0];
>> a*b
ans=
3 4 0
6. ( )
>> A=[4 -1 1; 3 2 6; 10 2 25]
A=
4 -1 1
3 2 6
10 2 25
>> whos r
Name Size Bytes Class Attributes
A 3x3 72 double
7. ( )
|
|
|
>> A(:,3)
ans=
8.. ( )
>> A(2,:)
ans=
3 2 6
| + | () ; |
| - | () ; |
| * | ; |
| .* | |
| / | ; ; A/B=A*B  (A, B
|
| \ | A\B=A *B ( , )
|
| .\ | A. \ - |
| ^ | ; |
| .^ | |
| . |
| == | |
| |
| > | |
| >= | |
| < | |
| <= |
| MATLAB | |
| y=sqrt(x) |
| y=exp(x) . . |
| y=ln x | y=log(x) . . |
| y=lg x | y=log10(x) . . |
| y=sin x | y=sin(x) . . . |
| y=cos x | y=cos(x) . . . |
| y=tg x | y=tan(x) |
| y=arcsin x | y=asin(x) |
| y=arccos x | y=acos(x) |
| y=arctg x | y=atan(x) |
| y=ctg x | y=cot(x) |
| y=arcctg x | y=acot(x) |
| y=sec x | y=sec (x) |
| y=abs(x) |
:
:
1. 
(atan(x^2)-cos(sqrt(y))/(x^(1/3)+x^3)
2. 
exp(-(x-1))+y^(z-1)+log(x+2)^2
3. 
log(y-5)^2-sin(2*x^2)+(x*z)^y
4. 
.
1. 
2. 
3. 
4. 
-. -.
k=2; r=2; x=2; y=1;
r1=abs(x)^(5*x*y)+tan(3*k)
x=.5;
r2=sqrt(log(x)^2+1)+3*x^(1/3)
x=1;y=2;z=3;
r3=(x+3*y)/(2*z)-3*abs(x)*exp(x+y)/(x+y)+1/(1+1/(1+1/x))
x=0.3;
r4=sin(x/2)^3+cos(x^2)-2*cos(3*x)^(1/5)
|
|
|
; .
( )
r1=
1.0237e+003
r2=
3.5978
r4=
-18.2522
r4=
-0.8193
