12. 12
Mathcad галерей
0 10 20 30 40
4
5
6
7
8
7.392
4.1
Y
f z( )
311 X z,
⇑
X Y, Z,( )
F x( )
ln x( )
x
1
⎛
⎜
⎜
⎝
⎞
⎟
⎟
⎠
:=
a 10
m
sec
⋅:= mass 2 kg⋅:=
F mass a⋅:= F 20 snewton=
x
2
4− 21 solve x,
5
5−
⎛
⎜
⎝
⎞
⎟
⎠
→
20 0 20
20
20
f(x) over Range -r1 to r1
A
r−
r
x
r
2
x
2
−−
r
2
x
2
−
y1
x
f x y,( )
d
d
⎛
⎜
⎝
⎞
⎟
⎠
2
+
y
f x y,( )
d
d
⎛
⎜
⎝
⎞
⎟
⎠
2
+
⌠
⎮
⎮
⎮
⌡
d
⌠
⎮
⎮
⎮
⌡
d:=
20. 20
Mathematica галерей
In[2]:= Plot3D@Cos@xD Sin@yD, 8x, 0, 2Pi<, 8y, 0, 2Pi<D;
0
2
4
6 0
2
4
6
-1
-0.5
0
0.5
1
0
2
4
In[1]:= Integrate@1êHx^4− a^4L, xD
Out[1]= −
ArcTanA x
a
E
2 a3
+
Log@a − xD
4 a3
−
Log@a + xD
4 a3
In[1]:= Solve@x^2+ x a, xD
Out[1]= ::x →
1
2
I−1 −
è!!!!!!!!!!!!
1 + 4 a M>, :x →
1
2
I−1 +
è!!!!!!!!!!!!
1 + 4 a M>>
DSolve@8y'''@xD + y''@xD + y'@xD + y@xD 2∗x, y@0D y0, y'@0D 0, y''@0D 0<, y@xD, xD
::y@xD →
−x
J−2 x
+ 2 x
x +
2+ y0
2
+
1
2
x
H2 + y0L Cos@xD −
x
J1 −
y0
2
N Sin@xDN>>
21. 21
MatLab
• MATLAB is a numerical computing environment
and programming language. Created by The
MathWorks, MATLAB allows easy matrix
manipulation, plotting of functions and data,
implementation of algorithms, creation of user
interfaces, and interfacing with programs in other
languages. Although it specializes in numerical
computing, an optional toolbox deals with the
symbolic engine (processor), allowing it to be
part of a full computer algebra system.
• As of 2004, MATLAB was used by more than
one million people in industry and academia.