matlab問題：tic，toc是什么東西，怎么用的

捏放棄你莫笑 2017-11-25 10:31:17 628 瀏覽

tic， s=0; for i=1:100000， s=s+1/2^i+1/3^i; end; toc 這樣的一個(gè)語(yǔ)句，為什么每次的到的結(jié)果不同 Elapsed time is 0.189000 seconds. Elapsed time is 0.210000 seconds. Elapsed time is 0.196000 seconds. Elapsed time is 0.203000 seconds. Elaps... tic， s=0; for i=1:100000， s=s+1/2^i+1/3^i; end; toc 這樣的一個(gè)語(yǔ)句，為什么每次的到的結(jié)果不同 Elapsed time is 0.189000 seconds. Elapsed time is 0.210000 seconds. Elapsed time is 0.196000 seconds. Elapsed time is 0.203000 seconds. Elapsed time is 0.197000 seconds. Elapsed time is 0.205000 seconds. Elapsed time is 0.199000 seconds. Elapsed time is 0.199000 seconds. Elapsed time is 0.189000 seconds. 展開

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matlab問題：tic，toc是什么東西，怎么用的: tic， s=0; for i=1:100000， s=s+1/2^i+1/3^i; end; toc 這樣的一個(gè)語(yǔ)句，為什么每次的到的結(jié)果不同 Elapsed time is 0.189000 seconds. Elapsed time is 0.210000 seconds. Elapsed time is 0.196000 seconds. Elapsed time is 0.203000 seconds. Elaps... tic， s=0; for i=1:100000， s=s+1/2^i+1/3^i; end; toc 這樣的一個(gè)語(yǔ)句，為什么每次的到的結(jié)果不同 Elapsed time is 0.189000 seconds. Elapsed time is 0.210000 seconds. Elapsed time is 0.196000 seconds. Elapsed time is 0.203000 seconds. Elapsed time is 0.197000 seconds. Elapsed time is 0.205000 seconds. Elapsed time is 0.199000 seconds. Elapsed time is 0.199000 seconds. Elapsed time is 0.189000 seconds. 展開

MATLAB tic toc計(jì)算時(shí)間問題: 用MATLAB的tic toc函數(shù)計(jì)算時(shí)間時(shí)， diyi次運(yùn)行與多次運(yùn)行的時(shí)間不等這是怎么回事例如運(yùn)行 for i=1:10 tic summ=sum(1:1000); toc end 結(jié)果顯示 Elapsed time is 0.000407 seconds. Elapsed time is 0.000021 seconds. Elapsed time ... 用MATLAB的tic toc函數(shù)計(jì)算時(shí)間時(shí)， diyi次運(yùn)行與多次運(yùn)行的時(shí)間不等這是怎么回事例如運(yùn)行 for i=1:10 tic summ=sum(1:1000); toc end 結(jié)果顯示 Elapsed time is 0.000407 seconds. Elapsed time is 0.000021 seconds. Elapsed time is 0.000017 seconds. Elapsed time is 0.000016 seconds. Elapsed time is 0.000016 seconds. Elapsed time is 0.000016 seconds. Elapsed time is 0.000016 seconds. Elapsed time is 0.000016 seconds. Elapsed time is 0.000016 seconds. Elapsed time is 0.000016 seconds. 明顯diyi次運(yùn)行時(shí)間比以后幾次長(zhǎng)很多，第二次也是，到了后來時(shí)間趨于平穩(wěn) 展開

matlab中tic和toc問題，為什么明顯不對(duì)？: 我用tic和toc計(jì)算程序運(yùn)行時(shí)間，為什么明明有100多seconds，但結(jié)果卻顯示0.093seconds，明顯不對(duì)啊??？但是，對(duì)于簡(jiǎn)單的程序，我用pause()命令試驗(yàn)都是正確的為什么我的程序運(yùn)行后就不行？請(qǐng)高手指點(diǎn) 謝謝！