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(. 2.9.3) hold on ( ).

. 2.9.3. .

,

>> plot(x,y,x,z);

:

plot(x1,f1,x2,f2,x3,f3,...),

x1,x2,x3,... ( x), f1,f2,f3,... , .

() subplot (. 2.9.4):

>> subplot(1,2,1); plot(x,y);

>> subplot(1,2,2); plot(x,z);

subplot , (), , ( , ).

. 2.9.4. .

. 2.9.5. .

fplot.

, MATLAB , . , , fplot, plot. fplot :

fplot('f(x)', [xmin xmax])

f(x), , x xmin xmax x. , , (. 2.9.5):

>> fplot('sin(x)/x', [-2*pi 2*pi])

plot fplot , x . , fplot , 0.2%. , fplot (, 1), ,

>> fplot('sin(x)/x', [-2*pi 2*pi], 0.001)

, , 0.1%. N, , fplot , N+1 . :

>> fplot('sin(x)/x', [-2*pi 2*pi], 0.001, 1000)

>> fplot('sin(x)/x', [-2*pi 2*pi], 1000, 0.001)





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