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A1 Matlab

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Matematiĉke funkcije<br />

• primenjuju se nad matricom elemenat po elemenat<br />

• trigonometrijske: sin cos tan asin acos atan atan2<br />

sinh cosh tanh asinh acosh atanh<br />

• neke elmentarne funkcije<br />

– apsolutna vrednost abs<br />

– kvadratni koren sqrt<br />

– signum sign<br />

– ostatak delenja rem(x,y)<br />

– exponencijalna exp<br />

– prirodni logaritam log<br />

– logaritam osnove 10 log10, osnove 2 log2<br />

• zaokruživanje vrednosti na celobrojnu<br />

– ka najbližem celom broju round<br />

– ka nuli fix<br />

– ka -� floor<br />

– ka +� ceil<br />

• specijalne funkcije: bessel, beta, gamma, ...<br />

» x=pi*[1/3 1/6];<br />

» y=sin(x)<br />

y =<br />

0.8660 0.5000<br />

» 2*y-1<br />

ans =<br />

0.7321 -0.0000<br />

» 2*y-1 >= 0<br />

ans =<br />

1 0<br />

» floor(2*y-1)<br />

ans =<br />

0 -1

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