Page 76 - MATLAB an introduction with applications
P. 76
MATLAB Basics ——— 61
0.5
z 0
–0.5
5
4
0 2
0
–2
y –5 –4 x
Fig. E1.15 (a)
(b) % Waterfall Plot
>> x=–4.0:0.25:4;
>> y=–4.0:0.25:4;
>> x,y]=meshgrid(x,y);
>> z=2.0^(–1.5*sqrt(x^2+y^2))*cos(0.5*y)*sin(x);
>> waterfall(x,y,z)
>> xlabel(‘x’);ylabel(‘y’)
>> zlabel(‘z’)
0.5
z 0
–0.5
5
4
0 0
–2
–4
y –5 x
Fig. E1.15 (b)
(c) % 3-D Contour Plot
>> x=–4.0:0.25:4;
>> y=–4.0:0.25:4;
F:\Final Book\Sanjay\IIIrd Printout\Dt. 10-03-09
