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建ç«Mæ件æç´æ¥ç¹å»ï¼File/New/Function)建ç«å½æ°æ件ï¼å
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function [è¾åºåé] = å½æ°å称(è¾å
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å¦ä¸æ示ï¼æ¯ç¼åçä¸ä¸ªæ±1å°nä¹åçæ±åå½æ° eg_sumï¼æç
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function [s] = eg_sum( n )
% calculate the sum of 1..n
s = 0;
for i = 1:n
s = s + i;
end
3
åå°æ§å¶å°Command Windowï¼ä¸»çé¢ï¼,注æè¦ä½¿ç¨ä¹åä¿åçå½æ°æ件åæ¥è°ç¨å½æ°ï¼å¦ä¸æ示ï¼
>> clear
>> a = eg_sum(10)
è¿è¡ç»æï¼ a = 55
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¶å®ä¸æ¯è¿æ ·åçï¼åªè¦ç¥éè°ç¨å½æ°æ¶æ¯éè¿å½æ°æ件åè°ç¨çè¿ç¹å³å¯ï¼æ¯å¦ä¸å¾æ示ï¼å³ä½¿æ件åä»ç¶æ¯eg_sumï¼ä½æå¯ä»¥ä¿®æ¹å½æ°å为ï¼my_sum è°ç¨æ¶ç¨æ件åè°ç¨å°±å¥½ï¼å¦ä¸æ示ï¼
>> b = eg_sum(10)
è¿è¡ç»æï¼ b = 55
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