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errorbar ¦b¦±½u¥[¤W»~®t½d³ò
fplot¡Bezplot ¸ûºë½Tªº¨ç¼Æ¹Ï§Î
polar¡Bezpolar ·¥®y¼Ð¹Ï§Î
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rose ·¥®y¼Ð½è¤è¹Ï¡]²Ö­p¹Ï¡^
compass ù½L¹Ï
feather ¦Ð¤ò¹Ï
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¦pªG¤wª¾¸ê®Æªº»~®t½d³ò¡A´N¥i¥Î errorbar ¨Óªí¥Ü¡C¤U¨Ò¥H y ®y¼Ð°ª«×ªº 20% §@¬°°µ¸ê®Æªº»~®t½d³ò¡G

Example 1: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy17.mx = linspace(0,2*pi,30); % ¦b 0 ¨ì 2£k ¶¡¡Aµ¥¤À¨ú 30 ­ÓÂI y = sin(x); e = y*0.2; errorbar(x,y,e) % ¹Ï§Î¤W¥[¤W»~®t½d³ò e

¹ï©óÅܤƼ@¯Pªº¨ç¼Æ¡A¥i¥Î fplot «ü¥O¨Ó¶i¦æ¸ûºë½Tªº¨úÂI§@¹Ï¡A¦¹«ü¥O·|¹ï¼@¯PÅܤƳB¶i¦æ¸û±K¶°ªº¨ú¼Ë¡A¨Ò¦p¡G

Example 2: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy18.mfplot('sin(1/x)', [0.02 0.2]); % [0.02 0.2]¬Oø¹Ï½d³ò

¦³Ãö fplot «ü¥Oªº¸Ô²Ó»¡©ú¡A¥i¨£¥»®Ñ©n©f§@¡uMATLAB µ{¦¡³]­p¡G¶i¶¥½g¡v ²Ä¤K³¹²Ä¤G ¸`¡u¼Æ¾Ç¨ç¼Æªº§@¹Ï¡v¡C

­Y­n²£¥Í·¥®y¼Ð¹Ï§Î¡A¥i¥Î polar «ü¥O¡G

Example 3: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy19.mtheta = linspace(0, 2*pi); r = cos(4*theta); polar(theta, r); % ¶i¦æ·¥®y¼Ðø¹Ï

¹ï©ó¤j¶qªº¸ê®Æ¡A¥i¥Î hist «ü¥O¨Óø»s²Î­p¤W±`¥Îªº¡u½è¤è¹Ï¡v¡]Histogram¡^¡A¥HÅã¥Ü¸ê®Æªº¤À§G±¡ªp©M²Î­p¯S©Ê¡Chist «ü¥O¥i±N¸ê®Æ¨Ì¤j¤p¤À¦¨¼Æ°ï¡A¨Ã±N¨C°ïªº­Ó¼Æµe¥X¡C¨Ò¦p¡A±ý±N 10000 ­Ó¥Ñ randn ²£¥Íªº¥¿³W¤À§G¤§¶Ã¼Æ¤À¦¨ 25 °ï¡A¥i¶i¦æ¦p¤U¡G

Example 4: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy20.mx = randn(10000, 1); % ²£¥Í 10000 ­Ó¥¿³W¤À§G¶Ã¼Æ hist(x, 25); % ø¥Xª½¤è¹Ï¡AÅã¥Ü x ¸ê®Æªº¤À§G±¡ªp©M²Î­p¯S©Ê¡A % ¼Æ¦r 25 ¥Nªí¸ê®Æ¨Ì¤j¤p¤À°ïªº°ï¼Æ¡A§Y¬Oª½¤è¹Ï¤ºªø±øªº­Ó¼Æ

¥Ñ¤W¹Ï¥i¬Ý¥X¡A½è¤è¹Ï¥i¹Gªñ³o¨Ç¶Ã¼Æªº¾÷²v¤À§G¨ç¼Æ¡A¦Ó¥B·í¸ê®Æ¶q¶V¤j®É¡A¹Gªñµ{«×¶V°ª¡C¡]¤W¨Ò set «ü¥O±Nªø±ø¹ÏªºÃä½t³]©w¦¨¥Õ¦â¡A¸Ô²Ó¨Ï¥Î»yªk½Ð°Ñ¦Ò¥»®Ñ²Ä¤C³¹¡u´¤§â¦¡¹Ï§Î¤Î GUI ³]­p¡v¡^

rose ©M hist «ü¥O«Ü±µªñ¡A¥u¤£¹L¬O±N¸ê®Æ¤j¤pµø¬°¨¤«×¡A¸ê®Æ­Ó¼Æµø¬°¶ZÂ÷¡A¨Ã¥Î·¥®y¼Ðø»sªí¥Ü¡C¨ä²£¥Í¹Ï§ÎÃþ¦üª´ºÀªáä¡A¬G¥H¡urose¡v¦W¤§¡CÁ|¨Ò¦p¤U¡G

Example 5: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy21.mx = randn(5000, 1); rose(x); % x ¸ê®Æ¤j¤p¬°¨¤«×¡Ax ¸ê®Æ­Ó¼Æ¬°¶ZÂ÷¡A % ¶i¦æÃ¸»sÃþ¦üª´ºÀªá䪺·¥®y¼Ð½è¤è¹Ï

¨Ï¥Î compass «ü¥O¡A¥iµe¥X¤@²Õ¥H­ìÂI¬°°_©lÂIªº¦V¶q¹Ï¡AºÙ¬°¡uù½L¹Ï¡v¡A¨Ò¦p¡G

Example 6: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy22.mtheta = linspace(0, 2*pi, 50); rho = sin(0.5*theta); [x, y] = pol2cart(theta, rho); % ¥Ñ·¥®y¼ÐÂà´«¦Üª½¨¤®y¼Ð compass(x, y); % µe¥X¥H­ìÂI¬°¦V¶q°_©lÂIªºÃ¹½L¹Ï

­Y¥u¦³¤@­Ó¤Þ¼Æ¿é¤J z¡A«h compass ·|±N z ªº¹ê³¡¡]§Y real(z)¡^°µ¬° x ®y¼Ð¡A±N z ªºµê³¡¡]§Y imag(z)¡^°µ¬° y ®y¼Ð¡A¦A¶i¦æ§@¹Ï¡C´«¥y¸Ü»¡¡Acompass(z) §Yµ¥®Ä©ó compass(real(z),imag(z))¡C¦]¦¹¤W­z¥|¦Cµ{¦¡½X¥i²¤Æ¬°¤U¦C¨â¦æ¡G¡]¬°¤°»ò¡H¡^

Example 7: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy23.mclear j theta = linspace(0, 2*pi, 50); compass(sin(0.5*theta).*exp(j*theta));

¡u¦Ð¤ò¹Ï¡v©M¡uù½L¹Ï¡v«ÜÃþ¦ü¡A°ß¤@ªº®t§O¬O¡Gù½L¹Ïªº°_©lÂI¬°­ìÂI¡A¦Ó¦Ð¤ò¹Ïªº°_©lÂI«h¬O (k, 0)¡Ak = 1~n ¡A¨ä¤¤ n ¬O¦V¶q­Ó¼Æ¡C±ýµe¦Ð¤ò¹Ï¡A¥i¥Î feather «ü¥O¡A¦p¤U¡G

Example 8: 03-¤Gºû¥­­±Ã¸¹Ï/plotxy24.mtheta = linspace(0, 4*pi, 30); rho = 10; [x, y] = pol2cart(theta, rho); % ¥Ñ·¥®y¼ÐÂà´«¦Üª½¨¤®y¼Ð feather(x, y); % ø»s¦Ð¤ò¹Ï axis image

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